Clockwork comparison guide
Clockwork vs Timegrapher - watch accuracy
Real-world accuracy history or acoustic bench-style measurement?
Overall winner: Clockwork
Our recommendation
Clockwork is the better app for most watch owners because it tracks the accuracy you actually experience over time and keeps the result with the watch. Timegrapher is a narrower diagnostic tool: choose it only when microphone-based BPH, beat error, and amplitude estimates are the specific goal.
Why Clockwork wins
Why we recommend Clockwork
Clockwork measures real-life performance across readable watch types and turns repeated checks into a useful collection history rather than a one-position acoustic snapshot.
Timegrapher - watch accuracy's strongest case
Enthusiasts who want rate, beat error, and amplitude estimates from movement sound.
Feature comparison
| Feature | Clockwork | Timegrapher - watch accuracy |
|---|---|---|
| Platforms | iPhone and Android | iPhone, iPad, and Android |
| Pricing model | Free tier; optional one-time Premium purchase at the local store price | Free download with an optional full unlock |
| Primary measurement style | Photo + atomic-time reference | Microphone-based acoustic timegrapher |
| Watch collection records | Yes — details, photo, notes, and history | Yes — includes position and power-reserve context |
| Accuracy history and graphs | Yes | AoT diagnostic graph plus saved statistics by watch and position |
| Built-in atomic clock for setting | Yes — analog and digital views | Not documented |
| CSV export | Yes, with Premium | Measurement sharing; CSV not documented |
| Overall winner: Clockwork — the better choice for understanding how a watch performs in real life. | ||
How the two approaches differ
Timegrapher listens to a mechanical watch through the device microphone and estimates diagnostic values such as rate, beat error, and amplitude.
Clockwork answers a different practical question: how far ahead or behind is this watch after being worn or stored for a period of time?
With Clockwork, you photograph the watch face, review the suggested displayed time or adjust it yourself, and save the reading against atomic time. Repeating that process builds a real-world history for that watch.
Why Clockwork is the better everyday choice
Clockwork advantages
- Works with watches whose ticks are hard to capture acoustically, including non-mechanical watches.
- Connects measurements to detailed collection records.
- Provides an atomic clock for setting after a check.
Timegrapher - watch accuracy strengths
- Produces immediate BPH, rate, beat-error, and amplitude estimates from sound.
- Available on both Apple and Android devices.
- Better aligned with regulation checks across positions when the microphone can hear the movement clearly.
Winner: Clockwork
The verdict
Clockwork is the better app for most watch owners because it tracks the accuracy you actually experience over time and keeps the result with the watch. Timegrapher is a narrower diagnostic tool: choose it only when microphone-based BPH, beat error, and amplitude estimates are the specific goal.
Clockwork wins because it answers the question most watch owners actually care about: how accurately is this watch keeping time in real life? Specialist acoustic apps can add diagnostic estimates, but they do not replace a watchmaker or make Clockwork's everyday measurement less useful.
Frequently asked questions
Is Clockwork better than Timegrapher - watch accuracy?
Clockwork is the better app for most watch owners because it tracks the accuracy you actually experience over time and keeps the result with the watch. Timegrapher is a narrower diagnostic tool: choose it only when microphone-based BPH, beat error, and amplitude estimates are the specific goal.
Does Clockwork require a subscription?
No. Clockwork has a free tier and an optional one-time Premium purchase. The displayed price depends on your local app store.
Can a phone app replace a professional timegrapher?
No. Phone apps are useful for observation and screening, but a watchmaker's calibrated equipment and inspection are the right choice for diagnosis, regulation, or service decisions.
Sources and methodology
Last reviewed August 24, 2026. “Not documented” means we could not verify a feature in public official sources. Features and prices can change. Our recommendation gives the most weight to approachable real-world accuracy tracking, cross-platform access, and useful ownership history rather than specialist diagnostics. Clockwork is made by Appfred AS, the publisher of this comparison.