# Rezet vs Welltech Sleep App

The clearest difference is update cadence: Welltech Sleep App at every 5 weeks against Rezet's every 3 months. Rezet's advantage is iOS requirement (13.0 vs 15.0). On price, ads, 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.

Rezet ships an update every 3 months, Welltech Sleep App every 5 weeks. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Rezet | Welltech Sleep App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 40 MB | 34 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rezet Technologies, Inc.](https://appshunter.io/developer/1723767261) | [Welltech Electronics, S.L.](https://appshunter.io/developer/1705376116) |

## What reviewers say

### Rezet

[App page](https://appshunter.io/ios/app/rezet/id6475267913)

**Features:** macOS Compatibility

**In-app purchases:** none


### Welltech Sleep App

[App page](https://appshunter.io/ios/app/welltech-sleep-app/id6745705744)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Rezet free?

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

### Is Welltech Sleep App free?

Welltech Sleep App is free to download, with no in-app purchases.

### Do Rezet or Welltech Sleep App have ads?

Neither Rezet nor Welltech Sleep App shows ads.

### Which is updated more often, Rezet or Welltech Sleep App?

Rezet ships an update every 3 months, and Welltech Sleep App every 5 weeks. Most recently, Rezet was updated on September 17, 2026 and Welltech Sleep App on September 23, 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.*