# ChronoLog • Watch Accuracy

> Accuracy and Timegrapher

Canonical page: [https://chrome-stats.com/d/id6452083510](https://chrome-stats.com/d/id6452083510)

## Overview

- **ID:** `id6452083510`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** tyler wood
- **Category:** Utilities
- **Rating:** 4.60 / 5 (218 ratings)
- **Version:** 2.5.1
- **Last updated:** 2026-08-25
- **First published:** 2023-08-08
- **Size:** 49 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/chronolog-watch-accuracy/id6452083510)
- **Website:** [https://www.chronolog.watch](https://www.chronolog.watch/)
- **Privacy policy:** [https://tylerjaywood.com/chronolog\_privacy\_policy](https://tylerjaywood.com/chronolog_privacy_policy)

## Description

ChronoLog is the go-to watch accuracy app for mechanical watch collectors. It combines an audio timegrapher, offset measurement via photo or timing taps, and atomic time sync into one affordable, subscription-free solution.

Track precision over time with timing runs, rate trends, and visual analytics. Add unlimited watches, export CSV data, back up across devices, and keep your horology collection organized—all with a one-time purchase.

## Rankings

- #101,501 — Overall

## Review summary

ChronoLog is praised for its ease of use, affordable one-time pricing, and strong ability to track watch accuracy over time with historical data. It offers handy features for watch enthusiasts (beat timing, sweep-clock with haptic feedback, time zones), plus data export and offline review with responsive support. The main recurring drawback is the mismatch between expectations of a measuring tool and the app’s logging-focused approach. Overall, it’s a solid, value-friendly tool for enthusiasts who want to monitor and manage their watches’ accuracy.

### Pros

- Easy to use and intuitive interface
- One-time payment with no ongoing subscription; good value
- Strong long-term watch-accuracy tracking with historical data across multiple watches
- Useful watch-specific features (beat timing, analog clock with sweep second hand, hampton feedback, time zones) and reliable updates
- Data export/import and offline review; developer is responsive

### Cons

- Not a measuring app; it does not measure watch performance with the phone mic and is instead a log against a time standard
- Premium features may be unclear or perceived as paying for capabilities some users expected to be free

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6452083510)