# Dehydrate vs Ondaya

The clearest difference is ads: Dehydrate at none against Ondaya's shown. Ondaya's advantage is iOS requirement (13.0 vs 18.2). On price, 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.

## The numbers

| Metric | Dehydrate | Ondaya |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 16 months | — |
| Size | 4 MB | 24 MB |
| Requires iOS | 18.2 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nico Liu](https://appshunter.io/developer/1080122034) | [HAYAT QADECH](https://appshunter.io/developer/1882795375) |

## What reviewers say

### Dehydrate

[App page](https://appshunter.io/ios/app/dehydrate/id6743676923)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Ondaya

[App page](https://appshunter.io/ios/app/ondaya-water-reminder/id6797037681)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dehydrate free?

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

### Is Ondaya free?

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

### Do Dehydrate or Ondaya have ads?

Ondaya shows ads; Dehydrate does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*