NoteLM vs Sensor Multitool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NoteLM
Transform your notes, files, and voice recordings into a private, searchable AI knowledge base. Chat with your documents and find information using semantic search, all offline and without tracking.
- Multi-format document import
- Semantic and full-text search
- Chat with your knowledge base
- Local LLM support
- 100% offline and private
- Vector search for concept matching
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NoteLM is a private personal AI assistant for your notes, documents, and ideas. Run supported AI models on your device, search your personal knowledge locally, and organize information with an AI workspace designed for focus and privacy. Use NoteLM to: • Chat with your personal knowledge • Search notes and documents • Organize ideas with AI • Import documents and extract useful information • Use OCR and voice transcription • Run focused AI agent tasks • Keep your information close to your device NoteLM helps turn scattered information into a searchable, useful personal knowledge space. Download NoteAI and build your private AI assistant. Auto-renewable subscription information: - Pro Monthly: 1-month subscription - Pro Yearly: 1-year subscription Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Privacy Policy: https://liamxavier0314.github.io/app-policies/mindvault/privacy-policy.html Terms of Use: https://liamxavier0314.github.io/app-policies/mindvault/terms-of-service.html
Sensor Multitool
Access real-time data from your device's built-in sensors, including accelerometer, gyroscope, magnetometer, altimeter, and compass. Choose from three sensitivity modes for raw, balanced, or smoothed data output. Ideal for makers, engineers, and hobbyists.
- Live sensor data dashboard
- Accelerometer, Gyroscope, Magnetometer, Altimeter, Compass
- Three sensitivity modes (Raw, Balanced, Smooth)
- On-device data processing
- Real-time motion, rotation, and magnetic field readings
- Altitude and pressure measurements
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Raw Sensor Multitool gives you instant, real-time access to the raw data streaming from your iPhone's built-in sensors — all in one clean dashboard. Designed for DIY makers, engineers, hobbyists, and anyone who wants to know exactly what their phone is measuring. SENSORS INCLUDED • Accelerometer — Live X, Y, Z forces in g. See gravity, tilt, and motion as raw values. Perfect for understanding how your phone moves in space. • Gyroscope — Real-time rotation rates on all three axes in rad/s. Ideal for robotics, motion tracking, and calibration projects. • Magnetometer — Raw magnetic field strength in microteslas (µT) on X, Y, Z. Detect nearby magnets, map field distortions, or calibrate compass-based projects. • Altimeter — Relative altitude change in meters and absolute barometric pressure in hPa. Zero the baseline at any time with the Reset button. • Compass — Magnetic and true heading in degrees, with a live compass rose and accuracy indicator. Instantly see if your magnetometer needs calibration. THREE SENSITIVITY MODES Tap Raw, Balanced, or Smooth at the top of the dashboard to control how data is filtered: • Raw — No filtering. Full precision. Every sensor update displayed as-is. Best for debugging and precision DIY work. • Balanced — Light smoothing with reduced decimal places. Clean and readable. The default mode. • Smooth — Heavy moving-average filter. Dramatically reduces noise. Best for steady observation and general use. DESIGNED FOR DIY PROJECTS Whether you're building a sensor logger, calibrating a magnetometer array, testing a motion-sensitive prototype, or just curious about your phone's hardware — Raw Sensor Multitool puts the data front and center, with no clutter. All sensor data is processed entirely on-device. Nothing is stored, logged, or transmitted.
Screenshots
Verdict
The clearest difference is ads: NoteLM at none against Sensor Multitool's shown. NoteLM also leads on update cadence (every 9 days vs every 3 weeks) and device support (4 vs 2). On price, rating, ratings volume and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. NoteLM sells 3 in-app purchases, starting at $5.99 per month and Sensor Multitool sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for NoteLM against 5.0 for Sensor Multitool. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
NoteLM ships an update every 9 days, Sensor Multitool every 3 weeks. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.
| Parameter | NoteLM | Sensor Multitool |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 9 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 120 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | xuezai lan | Andrew Meyers |
Customer experience
NoteLM
Sensor Multitool
In-app purchases
NoteLM
- Pro Monthly1 Month trial$5.991 Month
- Pro Yearly1 Month trial$59.991 Year
- GemmaNote Pro Lifetime$149.99
Sensor Multitool
- Small Donation$0.99
- Medium Donation$2.99
- Large Donation$4.99









