# Watch Tracker vs Oscillo

The clearest difference is price: Oscillo at Free against Watch Tracker's $4.99. Oscillo also leads on update cadence (weekly vs every 6 months). Watch Tracker's advantage is in-app purchases (none vs 4) and ratings volume (322 vs 25). On rating, ads, device support and iOS requirement there is nothing between them.

Oscillo is free to download; Watch Tracker costs $4.99 up front. Oscillo sells 4 in-app purchases, starting at $6.99 per month. Watch Tracker asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Watch Tracker against 4.8 for Oscillo. That said, the two scores are not equally well evidenced: Watch Tracker has 322 ratings behind it against 25, so its average is the more settled of the two.

Watch Tracker ships an update every 6 months, Oscillo weekly. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Watch Tracker | Oscillo |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.7 (322 ratings)](https://appshunter.io/ios/app/watch-tracker/id610666926/reviews) | **[4.8 (25 ratings)](https://appshunter.io/ios/app/oscillo-watch-accuracy-meter/id6759264433/reviews)** |
| Number of ratings | **322** | 25 |
| Positive reviews | 91.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 63 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Tom Kerrigan](https://appshunter.io/developer/295445504) | [Attila Halasz](https://appshunter.io/developer/790905891) |

## What reviewers say

### Watch Tracker

[App page](https://appshunter.io/ios/app/watch-tracker/id610666926)

Easily track your wristwatch's accuracy against an atomic clock. This app measures and records time differences, displaying detailed graphs of your watch's performance. It's designed to be more accurate and simpler than traditional methods.

**Highlights:** Tracks wristwatch accuracy, Synchronizes with atomic clock, Measures and records time differences, Displays data graphs, Tracks multiple watches, Exports data to CSV

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate and reliable
- 📊 Useful data and graphs
- 🔍 Helps track watch accuracy
- 💻 Simple and intuitive interface

**What reviewers complain about**

- 🐛 Crashes on some devices
- 🐛 Inconsistent results
- 🤔 Confusing to navigate at first
- 🤔 Lacks detailed instructions

**Reported bugs**

- Crashes when trying to add photos
- Inconsistent time tracking results

**Requested features**

- Add more positional variance options
- Implement cloud sync for data
- Add more customization options
- Improve support for newer iOS versions


### Oscillo

[App page](https://appshunter.io/ios/app/oscillo-watch-accuracy-meter/id6759264433)

This app uses your iPhone's microphone to measure the rate, beat error, and amplitude of mechanical watches. It also identifies watch models, manages your collection with AI-generated portraits, and tracks performance over time. Get detailed reports and reminders to maintain your timepieces.

**Highlights:** Measure watch rate, beat error, and amplitude, AI watch identification and model detection, AI-generated watch portraits for collection, Collection management and organization, Detailed measurement history and trends, Precision tracking and multi-day cycles, Weekly watch reports and profile insights

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oscillo Pro Monthly | $6.99 | per month |
| Oscillo Pro Annual | $29.99 | per year |
| Founder's Lifetime | $49.99 | one-time |
| Oscillo Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Watch Tracker free?

Watch Tracker costs $4.99, with no in-app purchases.

### Is Oscillo free?

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

### Which has better reviews, Watch Tracker or Oscillo?

Oscillo is rated higher. Watch Tracker averages 4.7 out of 5 from 322 ratings, while Oscillo averages 4.8 from 25 ratings.

### Do Watch Tracker or Oscillo have ads?

Neither Watch Tracker nor Oscillo shows ads.

### Which is updated more often, Watch Tracker or Oscillo?

Watch Tracker ships an update every 6 months, and Oscillo weekly. Most recently, Watch Tracker was updated on October 19, 2026 and Oscillo on October 11, 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.*