# Lyubi vs Did you concentrate?

The clearest difference is in-app purchases: Did you concentrate? at none against Lyubi's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lyubi sells 1 in-app purchase, starting at $2.99 per month. Did you concentrate? asks for nothing beyond the download.

## The numbers

| Metric | Lyubi | Did you concentrate? |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Size | 6 MB | 5 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [文烁 蔡](https://appshunter.io/developer/1522194890) | [SHUNJI KUSAKA](https://appshunter.io/developer/1738810004) |

## What reviewers say

### Lyubi

[App page](https://appshunter.io/ios/app/lyubi-time-tracker/id6464447786)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lyubi Premium - 1 month | $2.99 | per month |


### Did you concentrate?

[App page](https://appshunter.io/ios/app/did-you-concentrate/id6496853171)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lyubi free?

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

### Is Did you concentrate? free?

Did you concentrate? is free to download, with no in-app purchases.

### Do Lyubi or Did you concentrate? have ads?

Neither Lyubi nor Did you concentrate? shows ads.

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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.*