# Fasting Timer & Hydration Log vs Danjiki AI Fasting Timer 16

The clearest difference is update cadence: Danjiki AI Fasting Timer 16 at every 10 days against Fasting Timer & Hydration Log's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fasting Timer & Hydration Log sells 3 in-app purchases, starting at $6.99 per 7 days and Danjiki AI Fasting Timer 16 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fasting Timer & Hydration Log ships an update every 5 weeks, Danjiki AI Fasting Timer 16 every 10 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Fasting Timer & Hydration Log | Danjiki AI Fasting Timer 16 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Size | 5 MB | 81 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [AKIHIRO MATSUYAMA](https://appshunter.io/developer/6789115438) |

## 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 (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ketosis Tracker Weekly | $6.99 | per 7 days |
| Eating Window Yearly | $34.99 | per year |
| Autophagy Access, One-Time | $69.99 | one-time |


### Danjiki AI Fasting Timer 16

[App page](https://appshunter.io/ios/app/danjiki-ai-fasting-timer-168/id6804705531)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| だんじきプロ | $1.99 | one-time |


## Frequently asked questions

### Is Fasting Timer & Hydration Log free?

Fasting Timer & Hydration Log is free to download, with in-app purchases available.

### Is Danjiki AI Fasting Timer 16 free?

Danjiki AI Fasting Timer 16 is free to download, with in-app purchases available.

### Do Fasting Timer & Hydration Log or Danjiki AI Fasting Timer 16 have ads?

Neither Fasting Timer & Hydration Log nor Danjiki AI Fasting Timer 16 shows ads.

### Which is updated more often, Fasting Timer & Hydration Log or Danjiki AI Fasting Timer 16?

Fasting Timer & Hydration Log ships an update every 5 weeks, and Danjiki AI Fasting Timer 16 every 10 days. Most recently, Fasting Timer & Hydration Log was updated on October 28, 2026 and Danjiki AI Fasting Timer 16 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.*