Kitpick vs Gear Formula

Your scale model stash, organized. Kitpick is a personal kit manager for scale model builders. Track your stash, document builds with photos and notes, and let the app pick your next project when you can't decide. STASH & WISHLIST - Add kits with photos, brand, scale, category, and price - Filter and browse in grid or list view - Search kits on Scalemates and eBay - Keep a wishlist for kits you're planning to buy BUILD TRACKING - Start a build from your stash with one tap - Document progress with timestamped photo updates and notes - Pause builds and pick them up later - Mark builds complete with ratings and notes - Export your build journal as a PDF PICK NEXT BUILD - Can't decide what to build next? Let Kitpick pick for you - Daily random kit suggestion from your stash - Exclude kits you're not ready to build yet STATS & COLLECTION OVERVIEW - See your stash at a glance: counts, brands, categories - Track completed builds and ratings - View your longest-sitting kits and newest additions - Stash value overview THEMES & CUSTOMIZATION - Multiple dark and light themes - Grid layout options (2, 3, or 4 per row) - Grid and list view modes CURATED RESOURCES - Discover tab with hand-picked YouTube channels and modeling resources Kitpick is fully offline. No ads, no accounts, no data collection, no internet required. Your collection stays on your device.

Gear Formula: Calc & Simulator is a visual gear calculator and simulator for real-world transmission planning, learning, and quick design exploration. Built for bicycle riders, RC car builders, robotics teams, automotive tinkerers, mechanical engineering learners, DIY gearbox makers, and education use cases, the app helps you understand how gear choices affect ratio, speed, torque, and motion. What you can do: - Explore different gear families with clear visual selection flows. - Calculate gear ratio, RPM change, torque change, and drivetrain behavior. - Edit transmission values and see the simulator update in real time. - Compare how tooth counts and key parameters change the result. - Use guided validation feedback to review whether a setup looks balanced or too extreme. - Save and revisit useful configurations with Pro features. - Share saved configurations through app links with Pro features. Supported gear families in the current app: - Chain and sprocket - Spur gear pair - Planetary gear set - Bevel gear pair - Worm drive - Rack and pinion - Compound train Designed for multiple audiences: - Bicycle - RC Car - Robotics - Automotive - Mechanical Engineering - DIY Gearbox - Education Why Gear Formula is useful: - It is faster than doing repeated ratio math by hand. - It makes gear behavior easier to understand visually. - It helps users move from “What does this gear setup do?” to “Is this setup good for my goal?” - It works well for quick mobile checking, concept exploration, and learning. Important: Gear Formula is a reference and educational tool. Calculations, simulations, and validation guidance are not a substitute for professional engineering review, safety testing, or manufacturing verification. Free and Pro: The free version supports core calculation and simulation. Pro unlocks advanced workflow features such as Save, Share, Bookmark, and Validate, and also removes ads. Whether you are tuning cadence, exploring gearbox reduction, teaching gear fundamentals, or testing drivetrain ideas on the go, Gear Formula gives you a practical mobile workspace for gear calculation and simulation!