# Timegrapher vs TrueOffset

The clearest difference is in-app purchases: TrueOffset at none against Timegrapher's 1. TrueOffset also leads on update cadence (every 3 weeks vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Timegrapher sells 1 one-off in-app purchase. TrueOffset asks for nothing beyond the download.

Timegrapher ships an update every 8 months, TrueOffset every 3 weeks. The most recent releases landed on September 30, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Timegrapher | TrueOffset |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (44 ratings)](https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771/reviews)** | — |
| Number of ratings | **44** | — |
| Positive reviews | 55.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 2 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Attila Lelko](https://appshunter.io/developer/1693385247) | [Richard Bollar](https://appshunter.io/developer/1864304955) |

## What reviewers say

### Timegrapher

[App page](https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771)

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.

**Highlights:** Detect BPH, Measure Beat rate, Measure Beat error, Measure Amplitude, Set Lift angle, Real-time sound display, Accuracy over time display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock full | $5.99 | one-time |

**What reviewers like**

- 👍 Works great for some
- 🎯 Accurate for some users
- 💰 Good value for money (paid features)
- 💡 Useful for watch regulation
- 🎧 Works better with external mic

**What reviewers complain about**

- 😞 Doesn't work for many
- 💸 Requires payment for full functionality
- ❓ Scam accusations
- 📱 Inconsistent readings
- 🚫 No readings at all

**Reported bugs**

- Does not detect ticking
- Does not work at all
- Requires payment to function
- Inaccurate readings
- Unskippable pop-ups

**Requested features**

- Add dark mode
- Keep screen on during use
- Ability to save data per watch
- Improve visual design
- Lower price for Pro version


### TrueOffset

[App page](https://appshunter.io/ios/app/trueoffset/id6757518499)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Timegrapher free?

Timegrapher is free to download, with in-app purchases available.

### Is TrueOffset free?

TrueOffset is free to download, with no in-app purchases.

### Do Timegrapher or TrueOffset have ads?

Neither Timegrapher nor TrueOffset shows ads.

### Which is updated more often, Timegrapher or TrueOffset?

Timegrapher ships an update every 8 months, and TrueOffset every 3 weeks. Most recently, Timegrapher was updated on September 30, 2026 and TrueOffset on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*