Bubble Level vs ThirdGear

Turn your iPhone into a high-precision bubble level, angle gauge, and measuring tool. Whether you're mounting shelves, aligning frames, laying tile, or building a deck, this app gives you professional accuracy on the go. Use your device to check if surfaces are level, plumb, or at a specific angle. Get real-time tilt readings in degrees with the built-in inclinometer, or calibrate your phone to another object for relative alignment. This versatile tool is perfect for any construction, home improvement, or DIY project. Features: • Live angle measurement with digital inclinometer • Classic bubble view for horizontal and vertical levels • Built-in plumb checker for vertical surfaces • 360° surface alignment support in any orientation • Independent calibration or object-relative zeroing • Clear visual tilt display with smooth responsiveness • Clean, modern interface — no clutter or ads • Works in portrait and landscape modes Ideal for contractors, handymen, and DIYers alike, this tool makes it simple to measure, align, and build with confidence. Whether you're working inside or outside, this app gives you the accuracy of a hardware level — right on your iPhone. Download now and make every angle perfect with the easiest leveling tool you'll ever use. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Built for car enthusiasts who enjoy spending time in third gear. Mix and match engines, gearboxes, final drives and tires, then see what each combination does to speed and rpm in every gear. Change a ratio and everything redraws: the rpm-vs-speed trace, tractive effort against the traction limit, where each gear tops out, and where you should be shifting. Features A/B comparison: Put two setups side by side on the same charts. Swap a diff, a gearbox, or a whole engine and watch what moves. Acceleration and traction - Timed runs with your shift times factored in, plus tractive effort per gear against the grip you actually have. Optimal shift points - Where the next gear starts pulling harder than the one you're in, not just where the limiter is. Lap telemetry gear map - Import a lap from RaceChrono and see which gear you're in at every point on the track, with shift logic you can tune to match how you actually drive it. Garage - Save setups, load them back, and share one with a mate as a QR code. Everything runs on your device for free. No account, no sign-in, no network, and nothing leaves your phone.