# MeasureKit - 18-in-1 Toolkit — AR Ruler, Sound & Sensor Tools > AR Ruler, Sound & Sensor Tools (iPhone/iPad app by Yuhsiu Lai.) - Source: https://appshunter.io/ios/app/measurekit-18-in-1-toolkit/id6760564004 (this page in markdown: same URL + `.md`) - Developer: [Yuhsiu Lai](https://appshunter.io/developer/433114647) - Category: Utilities, Productivity - Price: $5.99 - Age rating: 4+ - Requires: iOS 17.6 · 12 MB - Languages: American English - Released: 2026-03-22 - Data updated: 2026-08-19 - User reviews in markdown: https://appshunter.io/ios/app/measurekit-18-in-1-toolkit/id6760564004/reviews.md ## What is MeasureKit? MeasureKit turns your iPhone into a powerful, all-in-one measurement toolkit. This app is now offered for a one-time flat fee. — no subscriptions, no recurring charges, no ads. Whether you're a contractor estimating a room, a designer matching colors, or just curious about the world around you, MeasureKit has the right tool for the job. MEASUREMENT TOOLS Distance Measurer — Point-to-point distance measurement using ARKit and LiDAR for millimeter-level accuracy. Dimension Measurer — Measure height, width, and depth of real-world objects in 3D space. Area Measurer — Trace the outline of any surface to calculate its area instantly. Angle Measurer — Measure angles between surfaces or objects with augmented reality guides. Volume Estimator — Estimate the volume of boxes, cylinders, and irregular shapes in AR. Object Circumference — Measure the circumference of round objects by tracing their edge or measuring the diameter in AR. Room Scanner — Scan rooms with LiDAR to trace walls, measure perimeters, and calculate floor area for quick floor plans. CAMERA TOOLS Object Counter — Count objects in a photo using on-device contour detection. Great for inventory, collections, and more. Color Picker — Identify any color through your camera and get its HEX, RGB, and HSB values instantly. Magnifying Glass — Use your camera as a digital magnifier with zoom controls and image stabilization. SENSOR TOOLS Heart Rate Monitor — Measure your heart rate by placing your finger over the camera lens. Decibel Meter — Measure ambient noise levels in real time with a clear dB readout. Metal Detector — Detect nearby metallic objects using the magnetometer sensor. Barometer — Monitor atmospheric pressure (hPa) and relative altitude with trend tracking and weather condition indicators. Light Meter — Measure ambient light intensity in lux using your camera's exposure data. Ideal for photographers and lighting designers. UTILITY TOOLS Level — A precision bubble level for checking surfaces and alignments. Unit Converter — Convert between hundreds of units across length, weight, temperature, speed, and more. Frequency Analyzer — Visualize audio frequencies in real time with a live spectrogram and peak detection. WHY MEASUREKIT? All 18 tools included — no subscriptions, no ads LiDAR-enhanced accuracy on supported devices Works offline — no internet connection required Privacy-first — all processing happens on-device Clean, modern interface designed for quick access DEVICE REQUIREMENTS Requires iOS 16.0 or later. Some measurement tools require a device with a LiDAR scanner (iPhone 12 Pro and later Pro models, iPad Pro 2020 and later). Camera, microphone, and motion sensor access may be requested depending on the tool. ## Version history (last 5 releases) ### 8.0 — 2026-05-18 This app is now offered for a one-time flat fee. ### 7.0 — 2026-04-20 Version 7.0 — New Pricing Model MeasureKit is now free to try. All 18 tools are fully unlocked for 3 days from your first launch — no sign-up, no credit card required. After the trial, unlock everything permanently for a one-time $4.99 purchase. If you previously purchased MeasureKit, tap Restore Purchase in Settings to reactivate your access at no charge. No subscriptions. No recurring charges. Pay once, yours forever. ### 6.0 — 2026-04-11 4 New Tools: Light Meter — Measure ambient light intensity in lux using your camera Room Scanner — Trace walls with LiDAR to measure perimeters and floor area Barometer — Monitor atmospheric pressure and altitude with weather trends Object Circumference — Measure round objects by tracing edges or diameter in AR Now a One-Time Purchase MeasureKit is now a single paid app — all 18 tools are fully unlocked with no subscriptions or in-app purchases. Redesigned Home Screen Fresh new look with a futuristic interface for faster access to all your tools. Bug Fixes & Improvements Improved camera reliability across all camera-based tools Fixed Object Counter detection accuracy Better AR session management for smoother performance ### 5.0 — 2026-04-09 Added new tools. Improved the existing tools. ### 2.0 — 2026-03-28 New: Metal Detector — Find metal objects, pipes, and wires behind walls using your iPhone's magnetometer. Features real-time signal strength, calibration mode, and haptic feedback. New: Frequency Analyzer — Real-time audio frequency detection with musical note identification, tuning indicator, spectrum visualizer, and 32-band display. Improved subscription screen with full pricing transparency, terms, and privacy links. Fixed Upgrade button in Settings. 14 tools and counting. ## More apps by Yuhsiu Lai - [Availability and Reliability](https://appshunter.io/ios/app/availability-and-reliability/id435033141) - [Battery Capacity Calculator](https://appshunter.io/ios/app/battery-capacity-calculator/id445176473) - [48VDC Power System](https://appshunter.io/ios/app/48vdc-power-system/id449477913) - [NEC Electrical Code Tools](https://appshunter.io/ios/app/nec-electrical-code-tools/id469334093) - [Engineer's Toolset](https://appshunter.io/ios/app/engineers-toolset/id478486737) - [Battery Current Simulator](https://appshunter.io/ios/app/battery-current-simulator/id488430945) All apps by Yuhsiu Lai: https://appshunter.io/developer/433114647 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*