Projection Mapping Toolbox vs MIDI Keyboard

Projection Calculator Toolbox is a mobile utility for projection mapping, AV, and live production workflows. It is designed for on-site calculations where speed and accuracy matter. The app provides tools to calculate projector placement, throw distance, surface dimensions, and multi-projector layouts using real-world measurements and manufacturer specifications. Tools Included Throw Distance Calculator Calculate projector-to-surface distance using lens throw ratios. Multi-Projector Calculations Plan multi-projector layouts with support for edge blending. Surface Dimension Tool Convert physical surface measurements into pixel width and height. Aspect Ratio Estimator Estimate surface aspect ratio using live view or photo reference. CAD PDF Import Import technical drawing PDFs and visualize projector photometrics over layouts. Projector Inventory Store commonly used projector specifications and reuse them across calculations. Projection Calculator Toolbox is intended for technicians and designers who need reliable calculations on site without spreadsheets or desktop software. The interface prioritizes clarity and fast input to minimize setup time. Built with React and Capacitor for native iOS performance.

Turn your iPhone or iPad into a portable MIDI keyboard. When you don’t have a physical keyboard nearby, you can still play instantly, audition chords, and enter melodies. Open the app and play with the original built-in Warm Keys synth sound—no login, sign-up, or sound download required. Connect to a Mac to control GarageBand, Logic Pro, and other compatible MIDI software instruments. Key Features • Multi-touch keyboard optimized for landscape iPhone and iPad • Cover the full 88-key MIDI range with octave controls and adjustable key width • Built-in Warm Keys sound with 32-note polyphony • Three output modes: Local, MIDI, and Both • Connect to Mac over USB or Bluetooth MIDI • Send virtual MIDI to compatible music apps on the same device • Velocity, Sustain, Mod Wheel, and Pitch Bend • MIDI channels 1–16, transpose, pitch bend range, and note-name display • Panic instantly stops all notes • Built-in connection guide and test note to help check your setup Great For • Capturing musical ideas while traveling or working away from your usual setup • Entering melodies and chords when your physical MIDI keyboard is not available • Controlling software instruments on your Mac • Keeping a portable backup input alongside your hardware keyboard Free to Use Warm Keys and Local output mode are always free. The connection guide and test note are also free to use. MIDI Keyboard Pro Sending MIDI to a Mac or compatible app on the same device, and using Both output mode, require a MIDI Keyboard Pro subscription. Weekly and annual plans are available, with Restore Purchases support. Subscription Information Payment is charged to your Apple ID upon confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your device settings. Actual pricing is shown on the purchase screen. This app uses Apple’s standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/