Timegrapher vs Magnetometer ∞
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timegrapher
This application uses your device's microphone to measure the accuracy of mechanical watches. It detects ticking sounds to analyze beat rate, beat error, and amplitude, displaying results in real-time and over time.
- Detect BPH
- Measure Beat rate
- Measure Beat error
- Measure Amplitude
- Set Lift angle
- Real-time sound display
- Accuracy over time display
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What is Timegrapher? Timegrapher measures the accuracy of your mechanical watch. The app uses your device's microphone to detect the ticking of your watch. Features: Detect BPH Measure Beat rate Measure Beat error Measure Amplitude Set Lift angle Display beat noises real time (unlock, impulse and lock sounds) Display accuracy and beat error over time More features will be coming soon.
Magnetometer ∞
Visualize magnetic fields in real-time with precision charts and monitor X, Y, Z axis readings. Ideal for scientific research, education, and field work, this app offers professional-grade accuracy and an intuitive interface for easy data interpretation.
- Real-time magnetic field visualization
- X, Y, Z axis readings in microteslas
- Scientific research tool
- Educational aid
- Field work companion
- Intuitive interface
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Magnetometer Visualizer - Explore the invisible magnetic world - Visualize magnetic fields in real-time with precision charts - Monitor X, Y, Z axis readings in microteslas (µT) - Perfect for scientific research, education, and field work - Professional-grade accuracy for reliable measurements - Clean, intuitive interface for easy data interpretation Whether you're a researcher, student, or professional, unlock the power of magnetic field analysis with stunning real-time visualization. Privacy Policy: https://apps.fawkeswei.com/magnetometer/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Magnetometer ∞ at 4.4 against Timegrapher's 2.8. Magnetometer ∞ also leads on update cadence (every 2 weeks vs every 8 months). Timegrapher's advantage is ads (none vs shown). On price, ratings volume, in-app purchases and monetization model 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. Timegrapher sells 1 one-off in-app purchase and Magnetometer ∞ sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Magnetometer ∞ holds the better App Store score, 4.4 against 2.8. Both are backed by a comparable volume of ratings — 46 and 59 respectively.
Timegrapher ships an update every 8 months, Magnetometer ∞ every 2 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Timegrapher | Magnetometer ∞ |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (46 ratings) | 4.4 (59 ratings) — better |
| Positive reviews | 55.0% of reviews | — |
| Number of ratings | 46 | 59 — better |
| Update frequency | Every 8 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Attila Lelko | Fawkes Wei |
Customer experience
Timegrapher
Magnetometer ∞
Bugs and requests
Timegrapher
Reported bugs
9 issues- Does not detect ticking
- Does not work at all
- Requires payment to function
- Inaccurate readings
- Unskippable pop-ups
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- App magnetizes watch
- Does not work after paying for premium
- Amplitude reported as 360
- Inconsistent measurements
Requested features
5 requests- Add dark mode
- Keep screen on during use
- Ability to save data per watch
- Improve visual design
- Lower price for Pro version
Magnetometer ∞
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Timegrapher
- Unlock full$5.99
Magnetometer ∞
- Weekly$1.997 Days
- Lifetime$9.99
Questions
Is Timegrapher free?
Is Magnetometer ∞ free?
Which has better reviews, Timegrapher or Magnetometer ∞?
Do Timegrapher or Magnetometer ∞ have ads?
Which is updated more often, Timegrapher or Magnetometer ∞?
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