# Fasting Timer & Hydration Log vs Vasten

The clearest difference is update cadence: Vasten at every 2 days against Fasting Timer & Hydration Log's every 5 weeks. Fasting Timer & Hydration Log's advantage is iOS requirement (17.0 vs 26.5). 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.

Fasting Timer & Hydration Log ships an update every 5 weeks, Vasten every 2 days. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Fasting Timer & Hydration Log | Vasten |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Size | 5 MB | 2 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [Dennis Van Dalen](https://appshunter.io/developer/1862992231) |

## What reviewers say

### Fasting Timer & Hydration Log

[App page](https://appshunter.io/ios/app/fasting-timer-and-hydration-log/id6772282181)

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

**In-app purchases:** none


### Vasten

[App page](https://appshunter.io/ios/app/vasten-fasting-timer/id6791755315)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fasting Timer & Hydration Log free?

Fasting Timer & Hydration Log is free to download, with no in-app purchases.

### Is Vasten free?

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

### Do Fasting Timer & Hydration Log or Vasten have ads?

Neither Fasting Timer & Hydration Log nor Vasten shows ads.

### Which is updated more often, Fasting Timer & Hydration Log or Vasten?

Fasting Timer & Hydration Log ships an update every 5 weeks, and Vasten every 2 days. Most recently, Fasting Timer & Hydration Log was updated on October 17, 2026 and Vasten on October 6, 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.*