# Air | Reduce Screen Time vs LetterMinder

The clearest difference is iOS requirement: Air | Reduce Screen Time at 17.0 against LetterMinder's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Air | Reduce Screen Time sells 2 in-app purchases, starting at $2.99 per month and LetterMinder sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Air | Reduce Screen Time ships an update weekly, LetterMinder every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Air | Reduce Screen Time | LetterMinder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 18 MB | 2 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [Lucrezia Canevari](https://appshunter.io/developer/6786716727) | [Nico Brandes](https://appshunter.io/developer/6821968867) |

## What reviewers say

### Air | Reduce Screen Time

[App page](https://appshunter.io/ios/app/air-reduce-screen-time/id6786716725)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Air Monthly | $2.99 | per month |
| Air Annual | $24.99 | per year |


### LetterMinder

[App page](https://appshunter.io/ios/app/letterminder/id6821968865)

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LetterMinder Premium | $9.99 | one-time |


## Frequently asked questions

### Is Air | Reduce Screen Time free?

Air | Reduce Screen Time is free to download, with in-app purchases available.

### Is LetterMinder free?

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

### Do Air | Reduce Screen Time or LetterMinder have ads?

Neither Air | Reduce Screen Time nor LetterMinder shows ads.

### Which is updated more often, Air | Reduce Screen Time or LetterMinder?

Air | Reduce Screen Time ships an update weekly, and LetterMinder every 2 weeks. Most recently, Air | Reduce Screen Time was updated on October 28, 2026 and LetterMinder on October 31, 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.*