# Set One vs AquaTap

The clearest difference is update cadence: Set One at every 4 days against AquaTap's every 3 weeks. Set One also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Set One ships an update every 4 days, AquaTap every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Set One | AquaTap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 35 MB | 24 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JAEYEOP KIM](https://appshunter.io/developer/1787511263) | [Yuki Okawa](https://appshunter.io/developer/1867195492) |

## What reviewers say

### Set One

[App page](https://appshunter.io/ios/app/set-one/id6753909776)

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

**In-app purchases:** none


### AquaTap

[App page](https://appshunter.io/ios/app/aquatap-water-tracker/id6784361354)

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

**In-app purchases:** none


## Frequently asked questions

### Is Set One free?

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

### Is AquaTap free?

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

### Do Set One or AquaTap have ads?

Neither Set One nor AquaTap shows ads.

### Which is updated more often, Set One or AquaTap?

Set One ships an update every 4 days, and AquaTap every 3 weeks. Most recently, Set One was updated on October 30, 2026 and AquaTap 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.*