# InstruKit: All-in-One Toolbox — Measure, Scan, Detect & More

> Measure, Scan, Detect & More (iPhone/iPad app by 辉 曾.)

- Source: https://appshunter.io/ios/app/instrukit-all-in-one-toolbox/id6813336815 (this page in markdown: same URL + `.md`)
- Developer: [辉 曾](https://appshunter.io/developer/1890594579)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 14 MB
- Languages: American English, Arabic, French (France), German (Germany), Hindi, Italian, Japanese, Korean, European Portuguese, Russian and 4 more
- Released: 2026-09-22
- Data updated: 2026-10-10
- User reviews in markdown: https://appshunter.io/ios/app/instrukit-all-in-one-toolbox/id6813336815/reviews.md

## What is InstruKit?

InstruKit turns the sensors, camera, and compute already in your iPhone into a focused, precise-feeling set of pocket instruments. It doesn't just show you one reading — it helps you save results, archive them into projects, and compare change over time. Measure, Save, Compare.

Why choose InstruKit:

- No login required — open and measure
- No ads, no tracking
- A dozen-plus tools for angle, sound, vibration, light, magnetic fields, location, and camera capture
- The core loop: Measure → Save → Compare
- Every record carries its source, method, and confidence
- Data stays on your device by default

The toolset:

- Level: surface / edge / plumb angles with zero-reference support
- Sound Level: real-time relative digital level (dB), 24-band spectrum, and recording summaries
- Vibration: acceleration RMS / peak measurement and recording summaries
- Light Estimate: illuminance estimated from camera exposure parameters (experimental)
- Magnetic: field strength readings and relative fastener magnetic-anomaly detection
- Location & Heading: single-point coordinates, altitude, and heading
- Magnifier / Text Recognition / Code Scanning: viewfinder, recognition, and saving
- Optical RPM (experimental): rotation speed estimated from camera frame-rate observation
- Flashlight / Screen Light: multi-mode lighting utilities
- Device Info / Network Status / Bluetooth Nearby: on-device and local-network facts at a glance

Honest about measurement limits:
We don't invent precision. Light is an estimate derived from camera exposure. Optical RPM is experimental. Sound shows a relative digital level, not a calibrated SPL meter. Fastener detection is a magnetic-anomaly reference only — not a wire finder or distance tool. Every result is labeled with its method and confidence, so you always know what it can and cannot tell you.

Built for comparison:
Save two measurements of the same kind and see the delta and percent change side by side. Archive records into projects and revisit before/after data anytime. Comparison results and measurement details can be exported as PDF diagnostic reports or CSV data for filing and collaboration.

Privacy-first by design:
No account registration. Your measurement records, captures, and settings stay on your device by default. The app contains no advertising SDKs and no third-party analytics or crash reporting, and it never tracks you across apps.

Unlock InstruKit Pro:
- Unlimited saving of measurement records, projects, and comparisons
- Export PDF diagnostic reports and CSV data
- Share measurement cards as images

Subscriptions auto-renew (monthly or yearly; yearly includes a 7-day free trial), or choose the one-time lifetime purchase. Manage or cancel anytime in iPhone "Settings → [Your Name] → Subscriptions"; benefits remain until the end of the current period.

Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $24.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $79.99 | one-time |



## Version history (last 3 releases)

### 1.1.0 — 2026-10-06

What's New

· Refreshed the Home screen and instrument displays, with consistent tactile controls across the tools.
· Fixed missing or briefly incorrect light readings on launch and when switching cameras. Estimated illuminance appears once camera exposure is ready.
· The screen ruler now starts along the left edge. Flashlight modes include steady, SOS, Morse, breathing, and frequency.
· Optionally sync saved measurements, recording traces, projects, and comparisons through iCloud. Saved photos and recognition results have a separate sync option.
· Improved localized screens and Settings navigation, and fixed repeated photo saves and resuming sound measurements after switching modes.

### 1.0.1 — 2026-10-02

New screen ruler: view centimeter and millimeter marks along the screen edge and align an object with the on-screen cursor. Recognized iPhone and iPad models show a reference scale automatically; other models require a physical ruler to set the scale. Ruler readings can now be saved to History and Projects and compared with other ruler records.

### 1.0 — 2026-09-22

No release notes.

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## More apps by 辉 曾

- [CueBuddy - Voice Teleprompter](https://appshunter.io/ios/app/cuebuddy-voice-teleprompter/id6761644502)

All apps by 辉 曾: https://appshunter.io/developer/1890594579

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*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 2026-10-10.*