Indie App Catalog

Lettera Markdown

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Lettera is a native, refined Markdown editor for macOS. Built for writers, researchers, developers, and anyone who works with documents, from a quick blog draft to a complete technical documentation system.

Lettera works around your setup. Open a single file to read and edit it, or open a folder as your writing workspace.

Billy – Invoice Manager

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In Catalog

Billy is a native Mac app for freelancers and small businesses who want to keep their invoicing simple, local, and under their own control.

It runs entirely offline — no accounts, no cloud sync, no third-party servers. All your data is stored in plain JSON files directly on your machine, which means you own it completely and can move, back up, or archive it however you like.

Creating and managing invoices is straightforward: Add your clients, set your line items, and style the output to match your brand. Billy gives you control over colors, fonts, and layout, so the invoices you send actually look like they came from you. When it comes to compliance, Billy meets the EU standard EN 16931 and the German XRechnung specification, and has been tested through the official KoSIT validator — so the documents you generate hold up wherever they need to.

No lock-in. No dependencies. Just an opinionated little app that helps you send beautiful, compliant invoices and stay on top of your paperwork.

Liftin - Gym Workout Tracker

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In Catalog

A weightlifting app for your iPhone and Apple Watch with a simple "tap to track" UI. Liftin' requires minimal user interaction and lets you focus on the workout. With Liftin' you can:

• Easily track your weightlifting workouts with your iPhone or Apple Watch.
• Automatically adjust the weights depending on your progress.
• Gain insight with graphs and statistics from your workouts.

Liftin' is integrated with Apple Health and workouts counts towards your activity goals on your Apple Watch.

Artifacts: Images + Bookmarks

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Artifacts is an image + link organizer app for macOS and iOS. A completely native, local first way to save all that stuff you find across the web. The items you save are saved locally and synced to all your devices privately using iCloud.

There is currently a free plan for up to 50 items and then a subscription to the Pro plan to unlock unlimited items. You will not be charged during the TestFlight, so don't hesitate to subscribe to test it out. We're still figuring out the exact limits and costs of the plans.

This is definitely a beta, and we have a long list of things to polish, but should be mostly stable. Please send any feedback to support@artifacts.app.

Thanks for testing!

Pizza: Proportions Calculator

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Calculate the dough proportions for a Neapolitan Style Pizza

Git client - Working Copy

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In Catalog

Welcome to the Working Copy TestFlight beta. 
Please use email instead of the TestFlight mechanism for feedback.

Timefall: Journal App

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Timefall is a journaling app I've been wanting to make for myself for a while. The idea is to have a journaling app that you write to your future self. With the app you write entries and they get delivered to you at a random time in a week, a month, or even longer. You choose a random delivery window and after you write the entry its not viewable till its delivered on the due date. On the due date you get a notification that you tap on and read the entry. The delivery process is a special way of revealing the entry to hopefully give you surprise and delight. You can share your entries if you wish with a nice share feature that creates a card like view of the entry. Timefall supports multiple journals, tags, and custom timeframes for when you will receive an entry. Hopefully this app will bring you some joy and make you even look forward to getting a notification from your phone. This is an early beta so there will probably be some bugs or rough edges to work through. Please don't hesitate to reach out and notify me. You can email me at: refactoredd@icloud.com. Thank you again for trying out Timefall hopefully it is an app that you enjoy and use regularly.

Chestly: Item Organizer

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In Catalog

Key Features

Storage Management
	•	Free Plan: Create up to 10 storage units for free.
	•	Plus Plan: Enjoy unlimited storage creation for your organizational needs.

Location Tracking
	•	Free Plan: Define up to 5 locations at no cost.
	•	Plus Plan: Unlimited location creation for enhanced item tracking.

Item Management
	•	Free Plan: Manage up to 100 items.
	•	Plus Plan: Track an unlimited number of items effortlessly.

Storage Security
	•	Free Plan: No locking feature available.
	•	Plus Plan: Lock storage units with biometric security for advanced protection.

Additional Item Details (Plus Only)
	•	Record Purchase Dates and Warranty Dates to stay on top of important deadlines.

Favorites
	•	Free Plan: Mark up to 2 storage units as favorites for quick access.
	•	Plus Plan: Mark an unlimited number of storage units as favorites.

Widgets
	•	Free Plan: Add a widget to display Quick Stats or recently added items for easy access.
	•	Plus Plan: [Feature TBD—Testers, your input is valuable! Help us refine this section!]

Superscribe - AI Note Taker

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In Catalog

This is the first TestFlight beta of Superscribe, a forthcoming audio transcription note taking app for iOS.

Stance: Active Hour Tracker

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Stance helps you stay active through the day by tracking stand progress, surfacing streaks and summaries, and turning movement into a collectible, customizable experience across iPhone, Watch, and widgets.

Flagsy - World Geography Quiz

Flags, Maps & Capital Trivia

The World Cup Event is here! Complete new quizzes, advance through every round, and become champion.

WebMeter: Ping Uptime Widget

Server, Website & API Monitor

Reliability improvements in WebMeter! - Fixed a race condition in DNS monitoring that could cause duplicate or missing results. - Improved Core Data stability to prevent rare data corruption when monitoring runs in the background. - Background DNS checks now reliably save results after all pings complete. Your feedback matters! Share suggestions or issues with us. Thank you for choosing WebMeter!

PromptKit: AI Helper

Generate & Use Prompts for GPT

Thank you for downloading PromptKit to boost your productivity with AI! Built for anyone using GPT and GenAI, this update brings bug fixes and performance improvements along with new localizations. If you enjoy the app, please leave a review or share it with someone who might like it. Have feedback? Send it via Settings > Send Feedback. Thank you!

Exsto - Relaxing Drawing

Therapeutic art creation

- Added canvas rotation, making it easier to turn your workspace into a comfortable drawing position. - Symmetry guides can now be rotated separately, giving you more control over mirrored drawing.

Weathergraph weather widget

Wind,rain,snow forecast&alert

Widgets now show the forecast location, so you always know what you're looking at. The chart and daily view now include the numeric date, making it easy to line up the forecast with your calendar. Plus many small visual refinements to the widgets. And bugfixes, of course — Weathergraph keeps getting better with every update. Recently: Γεια! Cześć! Hej! Hei! Moi! Six more languages join Weathergraph — Greek, Swedish, Polish, Norwegian, Finnish, and Danish — for 16 in total. Every screen, every forecast, and every rain alert reads naturally in your language. - Added Greek, Swedish, Polish, Norwegian, Finnish, and Danish — now 16 languages in all - Fixes and refinements across the existing translations - Prefer English? Switch the app's language anytime in Preferences Across 16 languages, something may have slipped through. If you spot a translation that's off, email me a screenshot — thank you! Previously: Minute-by-minute rain, anywhere on Earth. Rainbow.ai's nowcast now covers the entire globe — including regions where radar was sparse or missing. Wherever you are, you get the same precise 4-hour forecast with minute-by-minute rain and snow detail. - Truly global nowcast coverage, including Asia, Africa, South America, and the Arabian Peninsula - Five geostationary satellites and hundreds of radars, 1 km² resolution - Rain alerts now work everywhere in the world New "Next few hours" bar sits right below the summary and keeps the upcoming hours visible at all times. One quick glance tells you if rain is coming, when clouds will clear, or when the sun goes down. Multiple locations — the most-requested Weathergraph feature — is finally here. Save home, work, your favourite trails, or your next destination. Switch between them instantly with a single tap. - Save multiple locations — home, work, mountains, your next destination - Switch between them with one tap and get the full detailed forecast chart - Performance and reliability improvements throughout If you know friends or fellow outdoor lovers who would love Weathergraph's visual forecast, I'd be grateful if you could share or tweet a screenshot to let them know. Thank you! Tomas.

Mino: Minimal Bullet Journal

Your Private Planner & Diary

- Minor UI improvements and bug fixes.

Expenses: Spending Tracker

Bill & Subscription Manager

・Added support for Finnish, Norwegian, and Swedish. ・Filter content by amount, notes, image, recurrence, currency, and more. ・Global search is now available. ・Minor bug fixes and performance improvements.

Race Dash for Sim Games

Telemetry for F1, GT7 & Forza

-Fixed some more app crashes

Unplugged: Battery Widgets

Charge Monitor for Apple Watch

Whats New This update brings a brand-new way to plan around your battery, sharper predictions, and a much easier way to share your issues. New: Battery Agenda See your battery outlook next to your calendar. Battery Agenda connects your scheduled events to your battery forecast, so you can instantly tell if you have enough charge for your meeting, flight, or night out. It also helps you avoid surprises by letting you set a charge reminder when you expect to run low. Smarter, steadier predictions We fixed several issues that could skew your time remaining estimate. Your battery predictions are now more accurate and more stable, with fewer sudden, unrealistic changes. More reliable alerts Your fully-charged notification now arrives every time, so you always know when its time to unplug. Accessibility Full VoiceOver support across whole the app has been drastically improved, so Unplugged works great for everyone. Better Bug Reporting Have a problem? Report it right from the app. Choose the issue type, add a note or screenshot, and tap Send. If you want a reply, enable Let us follow up. Reports are delivered instantly with better context so I can fix issues faster. French Locale Crash Fixed French language was experiencing crashes with History Charts. This should be resolved now!

Spaced Repetition Tracker

Study Log & Recall

Version 3.0 is our biggest update ever. Streak tracking that actually helps you stay consistent Keep your progress going with a new streak system built around daily reminders. Never wonder what to study next. Your streak stays visible and motivating so you can learn every day, not just when you remember. See your day at a glance Check today’s sessions directly from the Home screen with a new widget. No app opening needed, just tap to jump in and start learning. Premium got smarter Premium now includes advanced scheduling, difficulty color coding, and unlimited learning. Plan your study sessions more accurately, spot harder topics faster, and keep practicing without limits. Free now feels much better The free tier is expanded to 2 subjects with 6 topics each, plus unlimited sessions. Practice as much as you want while you decide what to focus on next. A smoother, more rewarding experience Enjoy refined UI and celebration animations when you hit milestones, making progress feel more satisfying and encouraging. What’s improved Notifications are now more reliable and accurate, so reminders land when you need them. Scheduling performance is faster and more consistent. We also included stability updates and bug fixes for a smoother experience.