# Oscillo vs TGTimer

The clearest difference is update cadence: Oscillo at weekly against TGTimer's every 3 weeks. TGTimer's advantage is iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Oscillo sells 5 in-app purchases, starting at $6.99 per month and TGTimer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Oscillo ships an update weekly, TGTimer every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Oscillo | TGTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (26 ratings)](https://appshunter.io/ios/app/oscillo-watch-accuracy-meter/id6759264433/reviews)** | — |
| Number of ratings | **26** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 3 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | +4 | 4+ |
| Developer | [Attila Halasz](https://appshunter.io/developer/790905891) | [NICHOLAS EDWARD WHITE](https://appshunter.io/developer/1896716410) |

## What reviewers say

### 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 (5)**

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


### TGTimer

[App page](https://appshunter.io/ios/app/tgtimer/id6778817339)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TGTimer Pro | $9.99 | one-time |


## Frequently asked questions

### Is Oscillo free?

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

### Is TGTimer free?

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

### Do Oscillo or TGTimer have ads?

Neither Oscillo nor TGTimer shows ads.

### Which is updated more often, Oscillo or TGTimer?

Oscillo ships an update weekly, and TGTimer every 3 weeks. Most recently, Oscillo was updated on October 25, 2026 and TGTimer on October 24, 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.*