# Timegrapher - watch accuracy — Measurement tool for watches

> Mechanical watch accuracy measurement tool using device microphone. (iPhone/iPad app by Attila Lelko.)

- Source: https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771 (this page in markdown: same URL + `.md`)
- Developer: [Attila Lelko](https://appshunter.io/developer/1693385247)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 2.80/5 from 44 App Store ratings · 60 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 9 MB
- Languages: American English
- Released: 2023-07-05
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771/reviews.md

## What is Timegrapher?

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.

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## Recent user reviews (10 of 60)

All indexed reviews: https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771/reviews.md

### 1/5 — Unable to detect ticking

*2026-07-12, version 1.1*

Doesn’t do anything

### 1/5 — Doesn’t work

*2026-06-19, version 1.1*

Either it doesn’t work unless you pay or it doesn’t work at all. I’m not willing to pay the money to see if this thing is a scam. I tried the quiet room, wooden table, taking the phone case off. I just won’t pick up my automatic watch.

### 1/5 — Don’t work

*2026-06-09, version 1.1*

Scam it wants you to purchase

### 5/5 — Wow!

*2026-05-05, version 1.1*

Works great!

### 1/5 — Doesn’t work

*2026-04-01, version 1.1*

Does not work!!!!

### 4/5 — Works with loud movements

*2026-03-21, version 1.1*

iPhone microphone is not sensitive enough to pick up beat of my watches but I was able to regulate my pocket watch ST3621 movement to  ~ +-1 second.

### 1/5 — Pure Junk

*2026-03-20, version 1.1*

Does Not Work

### 5/5 — Работает

*2026-03-15*

Настраивал Seiko 5, если чётко следовать инструкциям, то вполне рабочее приложение.

### 5/5 — Very Accurate App

*2026-02-16, version 1.1*

I had used the app to measure the accuracy of my Baume watch, and it stated that it was losing ~28s / day.  I went to my local watchmaker to verify and if accurate, get my watch serviced.

Timegrapher at the watchmaker was -26s / day, so I’m very surprised how accurate this app is when measuring accuracy.

My advice for optimal accuracy is use an external mic on the wired headphones and put it under the watch in a quiet room.

### 1/5 — Бесполезно

*2026-02-08*

Требует дополнительных денег, чтобы понять хоть что-нибудь

## Frequently asked questions about Timegrapher

### What does Timegrapher do?

Timegrapher is a tool designed to measure the accuracy of mechanical watches. It utilizes your device's microphone to listen to the ticking of your watch and analyze various performance metrics.

### What key features does Timegrapher offer?

Key features include detecting BPH, measuring beat rate, beat error, and amplitude. It also allows you to set the lift angle and displays beat noises in real-time, along with accuracy and beat error trends over time.

### Is Timegrapher free to use?

The application is free to download and use, with additional features available through in-app purchases. This allows users to try the core functionality before committing to further purchases.

### What is the primary use case for Timegrapher?

The primary use case is for watch enthusiasts and owners of mechanical watches to accurately assess and monitor the performance of their timepieces. It helps in identifying potential issues or simply tracking how well a watch is keeping time.

### What information can I get about my watch's accuracy?

You can obtain detailed information including the beat per hour (BPH), the beat rate, the beat error, and the amplitude of your watch's movement. The app also displays these metrics over time, providing a historical view of its accuracy.

## Version history (last 2 releases)

### 1.1 — 2024-03-15

Add Firebase support

### 1.0 — 2023-07-05

No release notes.

## Apps similar to Timegrapher

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Magnetized Wristwatch Checker](https://appshunter.io/ios/app/magnetized-wristwatch-checker/id6478119877) | 4.6 (21) | Free | Utilities |
| [Twelve O'clock](https://appshunter.io/ios/app/twelve-oclock/id1570977980) | 4.4 (82) | Free | Utilities |
| [ChronoLog • Watch Accuracy](https://appshunter.io/ios/app/chronolog-watch-accuracy/id6452083510) | 4.7 (198) | Free | Utilities |
| [Watch Tuner Timegrapher](https://appshunter.io/ios/app/watch-tuner-timegrapher/id991367080) | 3.8 (74) | $7.99 | Utilities |
| [Watch Accuracy Checker](https://appshunter.io/ios/app/watch-accuracy-checker/id6478476307) | 2.0 (1) | Free | Utilities |
| [Tickoprint](https://appshunter.io/ios/app/tickoprint/id1496578178) | 1.3 (6) | Free | Utilities |

## More apps by Attila Lelko

- [Color Theory - puzzle game](https://appshunter.io/ios/app/color-theory-puzzle-game/id6677054590)

All apps by Attila Lelko: https://appshunter.io/developer/1693385247

## Related topics

[attila lelko](https://appshunter.io/ios/topics/attila-lelko) · [watch accuracy](https://appshunter.io/ios/topics/watch-accuracy) · [watch accuracy meter](https://appshunter.io/ios/topics/watch-accuracy-meter) · [watch accuracy checker](https://appshunter.io/ios/topics/watch-accuracy-checker) · [cuckoo clock calibration](https://appshunter.io/ios/topics/cuckoo-clock-calibration) · [watch regulator](https://appshunter.io/ios/topics/watch-regulator) · [mechanical watch](https://appshunter.io/ios/topics/mechanical-watch) · [toolwatch](https://appshunter.io/ios/topics/toolwatch)

---

*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 2026-08-27.*