# Keep Time! vs OptiListen

The clearest difference is in-app purchases: OptiListen at none against Keep Time!'s 1. Keep Time!'s advantage is update cadence (every 5 weeks vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Keep Time! sells 1 in-app purchase, starting at $1.99 per year. OptiListen asks for nothing beyond the download.

Keep Time! ships an update every 5 weeks, OptiListen every 6 months. The most recent releases landed on October 18, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Keep Time! | OptiListen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/optilisten/id1593948410/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | — | Free |
| Size | 4 MB | 19 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锡蕃 林](https://appshunter.io/developer/522352724) | [Christian Crumlish](https://appshunter.io/developer/1593948412) |

## What reviewers say

### Keep Time!

[App page](https://appshunter.io/ios/app/keep-time-improve-focus/id1134622897)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annually | $1.99 | per year |


### OptiListen

[App page](https://appshunter.io/ios/app/optilisten/id1593948410)

Enhance your listening abilities with this straightforward application. Track your progress during audio or video calls and build your skills over time. It's designed for anyone looking to improve their active listening.

**Highlights:** Set listening goals, Track session results, Build listening skills, Use with audio/video calls, Local data storage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Keep Time! free?

Keep Time! is free to download, with in-app purchases available.

### Is OptiListen free?

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

### Do Keep Time! or OptiListen have ads?

Neither Keep Time! nor OptiListen shows ads.

### Which is updated more often, Keep Time! or OptiListen?

Keep Time! ships an update every 5 weeks, and OptiListen every 6 months. Most recently, Keep Time! was updated on October 18, 2026 and OptiListen on October 21, 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.*