# OneClickTool Studio

> A small independent studio making simple games and apps for iPhone, Android, Mac, desktop and the browser. Free browser games need no download or signup.

## Online games (free, play in the browser)

- [Fern Valley Run](https://oneclicktool.app/online-games/fern-valley-run): Swipe. Jump. Chase the amber. A free 3D dinosaur runner you play right in your browser. Guide a little raptor through three valleys, dodge trees and pterosaurs, hop rocks and logs, and chain amber for a ×5 combo. No download, no signup. Play free in the browser: https://oneclicktool.app/play/fern-valley-run/index.html

## Games

- [Dino Buddies](https://oneclicktool.app/game/dino-buddies): Aim. Bounce. Break. Line up your shot, send your little buddies bouncing, and clear the blocks. A playful brick breaker for your next little break.
- [Surprise Eggs](https://oneclicktool.app/game/surprise-eggs): Tap. Match three. Pop! A gentle toy-matching puzzle for little ones: tap the toys, put three of a kind together and watch them pop. Clear the pile and unwrap a surprise egg with a new toy inside. No ads, no in-app purchases.
- [Parcel Pivot](https://oneclicktool.app/game/parcel-pivot): Slide. Match. Think ahead. Bring every box home. Slide cheerful parcels into their matching docks, then think ahead: a delivery turns the next dock and changes your route.
- [Spin & Snatch](https://oneclicktool.app/game/spin-and-snatch): One phone. Four chopsticks. Grab it first. A party food game for 1–4 players on one phone. Tap when something tasty passes you, dodge the chili, and be the first to 10 points across three games: Spin Grab, Sushi Train and Hot Pot.

## iPhone apps

- [Capture Words](https://oneclicktool.app/apps/pagecards): Snap it. Say it. Capture Words turns the things around you into English word stickers. Snap a cup, a plant or a chair: the object becomes a sticker with its English word, an example sentence and a voice that says it. Practise with flip cards and decorate your own rooms. Free, with no account and no ads.
- [Dose Log](https://oneclicktool.app/apps/plain-dose): Log your dose. Know the next one. A plain, private log for weekly GLP-1 shots or daily pills. Log a dose in a tap, get a suggested injection site and a reminder for the next one, and track your weight. Logging, reminders and CSV export stay free, with no account.
- [Draw animals for Kids](https://oneclicktool.app/apps/draw-animals): Can't read yet? Can still draw a cat. Draw animals for Kids reads each step out loud and draws the new lines in orange, so children aged 4 to 9 can copy a cat, a lion or a whale on real paper, even before they can read. Snap the finished drawing into an Art Book, or color it on screen. A new animal every week.
- [Haunts](https://oneclicktool.app/apps/haunts): Your life, wrapped. Every week. Haunts is a life log that writes itself. It remembers the places you stop at, the café, the gym, the ramen spot, and turns your day into a timeline. Add your photos, an emoji and a note to any place. No typing, no check-ins. Every week you get a recap card made for Stories, and everything stays on your iPhone.

## macOS apps

- [Sweepy](https://oneclicktool.app/macos/sweepy): A little less desktop chaos. Sweepy finds duplicate files, old installers and forgotten big files in your Downloads and Desktop, and cleans them up in one click. Nothing is deleted for good: every file goes to the Trash, and any cleanup can be undone.
- [AgentBell](https://oneclicktool.app/macos/agentbell): Your AI agent is waiting. AgentBell taps you. A free menu bar app for people who run Claude Code or Codex in the terminal. When Claude is waiting for your approval or your reply, or an agent finishes, AgentBell plays a sound and shows a big banner, even over a full-screen app. Click it to jump back to your terminal.
- [Edge Tabs](https://oneclicktool.app/macos/quickcheck): Sticky notes on the edge of your screen. Little sticky-note checklists that live as colored tabs on the edge of your screen. Paste or type a few lines, press Return, and you have a checklist. Hover a colored tab to tick things off right there, then toss the note when you are done. Completely free.
- [Redliner](https://oneclicktool.app/macos/redliner): See every change between two versions. Drop in the old and the new version of a contract, quote or policy: PDF, Word, RTF or text, scanned PDFs included. Redliner puts them side by side, highlights every added, removed and changed word, and lists each change with its page. Everything happens on your Mac.
- [Promo Desk](https://oneclicktool.app/macos/promo-desk): Store listings, launch posts and social, one checklist. Submitting an app or game means filling the same boxes again and again: name, subtitle, keywords, description, screenshots, what's new. Promo Desk reads the listing files in your repos, lines up every field for each product, store and version, counts characters against the store limit, and copies each one with a click. A spin-off of ShotMatic.

## Desktop apps

- [Markdown Everywhere](https://oneclicktool.app/desktop/markdown-viewer): Make sense of a folder full of .md files. Point it at your docs, notes or AI skills folder and see every Markdown file at a glance: as a table or a map of which file links to which. Click any file to read it. Free for Mac and Windows, with Linux coming soon.
- [Reel Desk](https://oneclicktool.app/desktop/reeldesk): Script it. Hook it. Post it. Reel Desk keeps every short video you make with AI next to its script, its hook and a caption for each platform, then walks it to TikTok, Reels and Shorts. A board shows what is an idea, what has a script, what is ready and what is posted. Works on Mac and Windows, synced through your own Git repo.

## I Love Mac: Mac apps, tips and app reviews

- [I Love Mac](https://oneclicktool.app/i-love-mac): every free Mac app from the studio, hand-picked open-source Mac apps, everyday Mac tips and tricks, paid Mac apps worth buying (with free alternatives), and honest iPhone app reviews with real prices. Custom Mac apps on request.
- [Every Mac screenshot shortcut, and where the files go](https://oneclicktool.app/i-love-mac/tips/mac-screenshot-shortcuts): All the built-in Mac screenshot shortcuts: full screen, an area, one window, screen recording, copy to clipboard, and how to change where screenshots are saved.
- [Finder tricks every Mac user should know](https://oneclicktool.app/i-love-mac/tips/finder-tricks): Quick Look, hidden files, copy a file path, cut and paste files, go to any folder, and the path bar: the Finder shortcuts that save time every day.
- [How to snap windows side by side on a Mac](https://oneclicktool.app/i-love-mac/tips/window-tiling-mac): Built-in window tiling on macOS Sequoia and later: drag to an edge, keyboard shortcuts for halves and full screen, and free apps for older macOS versions.
- [Things 3 review (iPhone)](https://oneclicktool.app/i-love-mac/iphone/things-3): The calmest to-do app on iPhone, and you pay for it once. $9.99 once on iPhone, no subscription. The Mac version is a separate $49.99 purchase. Made by Cultured Code, not by OneClickTool.
- [Flighty review (iPhone)](https://oneclicktool.app/i-love-mac/iphone/flighty): If you fly more than a few times a year, it pays for itself in the first delay. Free to download. Flighty Pro is $59.99 a year or $9.99 a month, with a $299 lifetime option and $4.99 pay-as-you-go. The free trial does not need a credit card. Made by Flighty LLC, not by OneClickTool.
- [Streaks review (iPhone)](https://oneclicktool.app/i-love-mac/iphone/streaks): A habit tracker you buy once and that reads your Health data for you. $5.99 once, no subscription. Made by Crunchy Bagel, not by OneClickTool.
- [Overcast review (iPhone)](https://oneclicktool.app/i-love-mac/iphone/overcast): The podcast player that makes every show shorter and easier to hear. Free with small ads for other podcasts. Overcast Premium removes them ($19.99 and $29.99 options listed on the App Store). Made by Overcast Radio, not by OneClickTool.
- [Day One review (iPhone)](https://oneclicktool.app/i-love-mac/iphone/day-one): The most polished private journal on iPhone; the free version is enough to start. Free for unlimited text entries in one journal. Premium is $49.99 a year (or $8.99 a month) and adds unlimited photos, multiple journals and more; a Gold tier is $74.99. Made by Bloom Built, not by OneClickTool.
- [Halide Mark III review (iPhone)](https://oneclicktool.app/i-love-mac/iphone/halide): For people who want iPhone photos that look like photos, not like phone photos. Paid app: a 7-day free trial with an annual membership, or a one-time purchase ($69.99 one-time listed on the App Store). Made by Lux Optics, not by OneClickTool.
- [Server Hub for Mac](https://oneclicktool.app/i-love-mac/server-hub): Server Hub is a free, open-source Mac app that shows every server running on localhost and tells you which ones actually answer. No more lsof -i :3000 or hunting through terminal tabs for whoever holds port 5173.
- [Markdown Everywhere for Mac](https://oneclicktool.app/i-love-mac/markdown-viewer): Markdown Everywhere is a free Mac app that opens a whole folder of Markdown files as a table, a map of links or Finder-style folders. Made for docs, notes, research and AI skills folders full of .md files.
- [AgentBell for Mac](https://oneclicktool.app/i-love-mac/agentbell): AgentBell is a free Mac menu bar app for people who run Claude Code or Codex in the terminal. When the agent waits for your approval or finishes, you hear a sound and see a big banner, even over a full-screen app.
- [Edge Tabs for Mac](https://oneclicktool.app/i-love-mac/quickcheck): Edge Tabs is a free Mac sticky notes app: paste a few lines, press Return, and get a checklist that lives as a colored tab on the edge of your screen. Tick tasks off without leaving what you are doing.
- [Mole for Mac](https://oneclicktool.app/i-love-mac/mole): Mole is a free, open-source command-line toolkit that cleans caches and logs, removes apps with their leftovers, maps your disk and shows live system stats on your Mac, all from one terminal binary. Made by tw93, not by OneClickTool.
- [IINA for Mac](https://oneclicktool.app/i-love-mac/iina): IINA is a free, open-source video player designed for modern macOS. Built on mpv, it plays almost any video or music file and adds picture-in-picture, trackpad gestures and online subtitle search. Made by iina, not by OneClickTool.
- [Stats for Mac](https://oneclicktool.app/i-love-mac/stats): Stats is a free, open-source system monitor that puts CPU, GPU, memory, disk, network, battery and sensor readings in your Mac menu bar, so you always know what is slowing your Mac down. Made by exelban, not by OneClickTool.
- [UTM for Mac](https://oneclicktool.app/i-love-mac/utm): UTM is a free, open-source virtual machine app for Mac. Built on QEMU, it lets you run Windows, Linux and other operating systems on Apple silicon and Intel Macs, with hardware-accelerated virtualization. Made by utmapp, not by OneClickTool.
- [MonitorControl for Mac](https://oneclicktool.app/i-love-mac/monitorcontrol): MonitorControl is a free, open-source Mac app that lets your keyboard brightness and volume keys control external displays, with the native macOS on-screen display and menu bar sliders. Made by MonitorControl, not by OneClickTool.
- [Rectangle for Mac](https://oneclicktool.app/i-love-mac/rectangle): Rectangle is a free, open-source window management app for Mac. Move and resize windows with keyboard shortcuts, or drag a window to a screen edge to snap it into place, Windows-style. Made by rxhanson, not by OneClickTool.
- [Ice for Mac](https://oneclicktool.app/i-love-mac/ice): Ice is a free, open-source menu bar manager for Mac. Hide the icons you do not need, keep an always-hidden section, and show everything again by hovering over the menu bar, so the notch stops hiding your apps. Made by jordanbaird, not by OneClickTool.
- [AeroSpace for Mac](https://oneclicktool.app/i-love-mac/aerospace): AeroSpace is a free, open-source tiling window manager for macOS inspired by i3. Windows tile themselves in a tree, workspaces switch instantly, and everything is set up in one plain text config file. Made by nikitabobko, not by OneClickTool.
- [CodeEdit for Mac](https://oneclicktool.app/i-love-mac/codeedit): CodeEdit is a free, open-source code editor written entirely for macOS, built by its community. Syntax highlighting, code completion, find and replace, terminal, git and extensions, in a fast native app. Made by CodeEditApp, not by OneClickTool.
- [Karabiner-Elements for Mac](https://oneclicktool.app/i-love-mac/karabiner-elements): Karabiner-Elements is a free, open-source keyboard customizer for macOS. Remap any key, turn Caps Lock into Escape or a hyper key, and set rules per device or per app. Made by pqrs-org, not by OneClickTool.
- [Maccy for Mac](https://oneclicktool.app/i-love-mac/maccy): Maccy is a free, open-source clipboard manager for Mac. It keeps a history of everything you copy and lets you open, search and paste earlier items from the keyboard in a second. Made by p0deje, not by OneClickTool.
- [BlackHole for Mac](https://oneclicktool.app/i-love-mac/blackhole): BlackHole is a free, open-source virtual audio loopback driver for macOS. Pass sound from one app to another with zero added latency, for example to record system audio or send music into a call. Made by ExistentialAudio, not by OneClickTool.
- [Kap for Mac](https://oneclicktool.app/i-love-mac/kap): Kap is a free, open-source screen recorder for Mac that lives in your menu bar. Pick a part of the screen, record, and export a clip you can share, with plugins for more. Made by wulkano, not by OneClickTool.
- [Background Music for Mac](https://oneclicktool.app/i-love-mac/background-music): Background Music is a free, open-source audio utility for macOS. Set a volume for each app, pause your music automatically when something else plays, and record system audio. Made by kyleneideck, not by OneClickTool.
- [AltTab for Mac](https://oneclicktool.app/i-love-mac/alt-tab): AltTab is a free, open-source app switcher that brings Windows-style alt-tab to the Mac. See a preview of every open window, not just every app, and jump to the one you want. Made by lwouis, not by OneClickTool.
- [Amethyst for Mac](https://oneclicktool.app/i-love-mac/amethyst): Amethyst is a free, open-source tiling window manager for macOS, in the spirit of xmonad. Open a window and Amethyst arranges everything on screen for you, with layouts you switch from the keyboard. Made by ianyh, not by OneClickTool.
- [Hammerspoon for Mac](https://oneclicktool.app/i-love-mac/hammerspoon): Hammerspoon is a free, open-source automation tool for macOS. It bridges the system and a Lua scripting engine, so you can script windows, hotkeys, Wi-Fi, USB, audio and more. Made by Hammerspoon, not by OneClickTool.
- [KeyCastr for Mac](https://oneclicktool.app/i-love-mac/keycastr): KeyCastr is a free, open-source keystroke visualizer for Mac. Show the keys you press, and optionally mouse clicks, while you record screencasts, present or teach. Made by keycastr, not by OneClickTool.
- [Hidden Bar for Mac](https://oneclicktool.app/i-love-mac/hidden-bar): Hidden Bar is a free, open-source, ultra-light Mac utility that hides menu bar icons you do not need to see. Click an arrow to collapse them and give your Mac a cleaner look. Made by dwarvesf, not by OneClickTool.
- [Loop for Mac](https://oneclicktool.app/i-love-mac/loop): Loop is a free, open-source window manager for macOS with a radial menu. Hold a trigger key, move the cursor in a direction, and the window moves and resizes there, with a preview first. Made by MrKai77, not by OneClickTool.
- [LinearMouse for Mac](https://oneclicktool.app/i-love-mac/linearmouse): LinearMouse is a free, open-source mouse and trackpad utility for Mac. Fix scrolling direction and smoothness, pointer speed and button actions, with settings per device. Made by linearmouse, not by OneClickTool.

## Mac Help: tested fixes for Mac problems

> Every guide lists the Mac and macOS version it was tested on and the date it was last verified. Each page has a plain Markdown twin at the same URL plus .md.

### Storage full (https://oneclicktool.app/fix/storage)

- [How to delete Time Machine local snapshots on a Mac](https://oneclicktool.app/fix/storage/delete-time-machine-local-snapshots.md): List and delete Time Machine local snapshots with tmutil, or let macOS remove them by switching backups to manual. Tested on macOS 26 Tahoe. Tested on macOS 26.3 Tahoe, verified 2026-10-12.
- [Is it safe to delete Library Caches on a Mac?](https://oneclicktool.app/fix/storage/is-it-safe-to-delete-library-caches.md): Which Mac cache folders are safe to delete, which to leave alone, and how to clear them without breaking apps. Measured on a MacBook Pro with macOS 26. Tested on macOS 26.3 Tahoe, verified 2026-10-12.
- [Mac storage full? 7 fixes, from free to one click](https://oneclicktool.app/fix/storage/mac-storage-full.md): Why a Mac says storage is full and how to get space back: check Storage settings, clear Downloads, caches, developer files and snapshots. Tested on macOS 26. Tested on macOS 26.3 Tahoe, verified 2026-10-12.
- [Mac System Data too large? What it is and how to shrink it safely](https://oneclicktool.app/fix/storage/mac-system-data-too-large.md): System Data is caches, logs, developer files, iPhone backups and Time Machine snapshots. How to find which part is big on your Mac and clear it safely. Tested on macOS 26.3 Tahoe, verified 2026-10-12.
- [Why Xcode takes so much space, and what you can delete](https://oneclicktool.app/fix/storage/xcode-taking-up-space.md): iOS DeviceSupport, DerivedData, simulators and archives explained, with what is safe to delete. We found 242 GB of old device files on one Mac. Tested on macOS 26.3 Tahoe, Xcode 26.5, verified 2026-10-12.

### Slow Mac (https://oneclicktool.app/fix/slow-mac)

- [kernel_task using high CPU on Mac: what it means and what to do](https://oneclicktool.app/fix/slow-mac/kernel-task-high-cpu.md): kernel_task takes CPU time to cool the Mac down, so it is a symptom, not the cause. How to find what is heating the Mac and bring kernel_task back down. Tested on macOS 26.3 Tahoe, verified 2026-10-12.
- [WindowServer high CPU on Mac: why it happens and how to lower it](https://oneclicktool.app/fix/slow-mac/windowserver-high-cpu.md): WindowServer draws everything on your screen. Extra displays, transparency, many windows and busy apps push its CPU up. How to lower it on macOS 26. Tested on macOS 26.3 Tahoe, verified 2026-10-12.

### Files & Finder (https://oneclicktool.app/fix/finder)

- [Can't empty Trash on Mac because a file is in use? How to fix it](https://oneclicktool.app/fix/finder/cant-empty-trash-file-in-use.md): Find which app is holding a file in the Trash, unlock locked items, use Delete Immediately, and fix Trash on external drives. Tested on macOS 26 Tahoe. Tested on macOS 26.3 Tahoe, verified 2026-10-12.
- [Mac error code 36 when copying or deleting files: how to fix it](https://oneclicktool.app/fix/finder/mac-error-code-36.md): Error -36 means macOS could not read or write some data. Fix it with dot_clean, find the one bad file, and check the drive and cable. Tested on macOS 26. Tested on macOS 26.3 Tahoe, verified 2026-10-12.

## Blog

- [Best Markdown Viewer for Mac (2026): 9 Picks, Sorted by the Job](https://oneclicktool.app/blog/best-markdown-viewer-mac): The best Markdown viewer for Mac depends on the job: preview one file, see a whole folder and its links, or edit. 9 apps compared, with prices checked.
- [Claude Code Context Full? What to Do Before Auto-Compact Eats Your Decisions](https://oneclicktool.app/blog/claude-code-context-full): Claude Code context full? Learn what auto-compact keeps and drops, when to use /compact vs /clear, and how Markdown files keep your decisions safe.
- [Claude Code Markdown Viewer: 4 Ways to Read the Files Claude Writes](https://oneclicktool.app/blog/claude-code-markdown-viewer): Need a Claude Code markdown viewer? Compare 4 real ways to read CLAUDE.md, skills and plans, and see the links between files before your docs folder gets messy.
- [Claude Code Plan File Location: Where Plans Are Saved and How to Move Them](https://oneclicktool.app/blog/claude-code-plan-file-location): The Claude Code plan file location is ~/.claude/plans by default. See how plan files are named, how plansDirectory moves them, and how to review them.
- [CLAUDE.md Best Practices (2026): Keep It Short, Point to Your Docs](https://oneclicktool.app/blog/claude-md-best-practices): CLAUDE.md best practices from the official docs: where it lives, how long it should be, what to put in it, a starter template, and fixes when Claude ignores it.
- [How to Make Videos with Claude Opus 5.5 and Remotion (Real Example Inside)](https://oneclicktool.app/blog/make-videos-with-claude-remotion): How to make videos with Claude Opus 5.5 and Remotion: the setup, a real 15-second video we rendered, its code, and a starter prompt you can copy.
- [How to Make a Game with Claude: We Built a 3D Browser Game in 2 Prompts](https://oneclicktool.app/blog/make-a-game-with-claude): How to make a game with Claude, from a real build: the exact 2 prompts, timings and code size behind our 3D browser runner, plus a starter prompt to copy.
- [7 App Monetization Strategies That Work in 2026 (and How to Pick One)](https://oneclicktool.app/blog/app-monetization-strategies): Compare 7 app monetization strategies, from subscriptions and one-time purchases to ads and hybrid models, with 2026 data and a simple way to choose yours.
- [The Best AI Productivity Tools in 2026 (Picked by Job, With Real Prices)](https://oneclicktool.app/blog/best-ai-productivity-tools): The best AI productivity tools for 2026, grouped by the job they do: writing, meetings, calendar, notes and automation, with real prices and free plans.
- [ChatGPT vs Claude (2026): Which AI Assistant Is Worth Paying For?](https://oneclicktool.app/blog/chatgpt-vs-claude): ChatGPT vs Claude compared on plans, models, writing, coding, images and voice, plus a plain rule for which AI assistant to pay for in 2026.
- [Claude Code vs Codex (2026): Which AI Coding Agent Should You Use?](https://oneclicktool.app/blog/claude-code-vs-codex): Claude Code vs Codex compared on price, models, workflow and limits, with a simple rule for choosing the right AI coding agent for your project in 2026.
- [Claude Code vs Cursor (2026): Terminal Agent or AI Editor?](https://oneclicktool.app/blog/claude-code-vs-cursor): Claude Code vs Cursor compared on price, models, workflow and limits, with a clear rule for when to pick the terminal agent, the AI editor, or both.
- [The Complete Claude Guide for 2026: Models, Plans, Claude Code and How to Use It Well](https://oneclicktool.app/blog/claude-guide): The complete Claude guide for 2026: every model and plan, Claude Code, key features, prompting habits and costs, in plain English for beginners and builders.
- [Claude Opus 5.5 vs Fable 5.1 vs Sonnet 5.5: Which Claude Model Should You Use?](https://oneclicktool.app/blog/claude-opus-vs-fable-vs-sonnet): Opus 5.5, Fable 5.1 or Sonnet 5.5? Prices, benchmarks and a simple decision guide for picking the right Claude model for coding, writing and everyday work.
- [How to Make Money With AI in 2026: 8 Real Ways (and the Scams to Skip)](https://oneclicktool.app/blog/how-to-make-money-with-ai): How to make money with AI in 2026: eight realistic ways, from AI freelancing to building small apps, what each needs, and the get-rich-quick scams to avoid.
- [How to Use Claude Opus 5.5 Effectively: 10 Practical Tips](https://oneclicktool.app/blog/how-to-use-claude-opus-5-5): Get better results from Claude Opus 5.5: pick the right effort level, write briefs it can finish, cut token costs, and know when to switch models.
- [10 Passive Income Ideas That Actually Work (With the Risks Spelled Out)](https://oneclicktool.app/blog/passive-income-ideas): Ten honest passive income ideas for 2026, from savings and Treasury bills to digital products and small apps, with the upfront work, costs and risks of each.
- [Product Owner Salary in the US (2026): Pay by Level, City and Path](https://oneclicktool.app/blog/product-owner-salary-us): What does a product owner earn in the US in 2026? Average pay, ranges by experience and city, product owner vs product manager, and how to earn more.
- [Subscription Pricing Strategy: How to Price Your App or SaaS (2026 Data)](https://oneclicktool.app/blog/subscription-pricing-strategy): A practical subscription pricing strategy for apps and SaaS: models, monthly vs annual plans, trials, paywalls and store fees, backed by 2026 benchmark data.
- [The Time Blocking Method: A Step-by-Step Guide That Survives Real Workdays](https://oneclicktool.app/blog/time-blocking-method): Learn the time blocking method step by step: how to plan your day in blocks, handle interruptions, use Google Calendar or paper, and adapt it for ADHD.
- [What Is Claude Fable? Anthropic's Top Model Explained (Fable 5.1)](https://oneclicktool.app/blog/what-is-claude-fable): What is Claude Fable? A plain guide to Fable 5.1: how it relates to Mythos, what it costs, how it compares with Opus 5.5, and when it is worth using.

## Optional

- [About the studio](https://oneclicktool.app/about)
- [Contact](https://oneclicktool.app/contact)
- [Privacy policies](https://oneclicktool.app/legal)