# Left Off vs Mechanical Sound ID

The clearest difference is ads: Left Off at none against Mechanical Sound ID's shown. Mechanical Sound ID's advantage is iOS requirement (15.8.3 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Left Off ships an update every 9 days, Mechanical Sound ID fortnightly. Both last shipped on November 4, 2026.

## The numbers

| Metric | Left Off | Mechanical Sound ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/left-off/id6480252756/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Free | — |
| Size | 27 MB | 36 MB |
| Requires iOS | 17.0 | **15.8.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jaylen James](https://appshunter.io/developer/1738574936) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Left Off

[App page](https://appshunter.io/ios/app/left-off/id6480252756)

Easily log your viewing progress across all your favorite shows and videos. Return to exactly where you stopped watching, regardless of the platform, with this simple tracking tool.

**Highlights:** Log viewing progress, Resume watching from any point, Supports all platforms, Easy to use interface, Save favorite shows

**Features:** macOS Compatibility

**In-app purchases:** none


### Mechanical Sound ID

[App page](https://appshunter.io/ios/app/mechanical-sound-id/id6738972003)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Left Off free?

Left Off is free to download, with no in-app purchases.

### Is Mechanical Sound ID free?

Mechanical Sound ID is free to download, with no in-app purchases.

### Do Left Off or Mechanical Sound ID have ads?

Mechanical Sound ID shows ads; Left Off does not.

### Which is updated more often, Left Off or Mechanical Sound ID?

Left Off ships an update every 9 days, and Mechanical Sound ID fortnightly. Most recently, Left Off was updated on November 4, 2026 and Mechanical Sound ID on November 4, 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.*