# Water Tracker vs Danjiki AI Fasting Timer 16

The clearest difference is update cadence: Water Tracker at every 3 days against Danjiki AI Fasting Timer 16's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Water Tracker sells 4 in-app purchases, starting at $3.99 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.

Water Tracker ships an update every 3 days, Danjiki AI Fasting Timer 16 every 10 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Water Tracker | Danjiki AI Fasting Timer 16 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/water-tracker-hydration-log/id6739935735/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 81 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Ivan Terekhin](https://appshunter.io/developer/888645337) | [AKIHIRO MATSUYAMA](https://appshunter.io/developer/6789115438) |

## What reviewers say

### Water Tracker

[App page](https://appshunter.io/ios/app/water-tracker-hydration-log/id6739935735)

Easily track your daily water intake with smart reminders and personalized goals based on your weight and activity. Log drinks with a single tap and monitor your hydration journey with insightful statistics. Integrates with Apple Health for a comprehensive view of your well-being.

**Highlights:** Personalized daily hydration goals, Smart and customizable reminders, Track various drink types, Apple Health integration, Home screen widgets, Hydration journey and statistics

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Water Tracker Premium Weekly | $3.99 | per 7 days |
| Water Tracker Premium Monthly | $6.99 | per month |
| Water Tracker Premium Yearly | $19.99 | per year |
| Premium | $14.99 | 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 Water Tracker free?

Water Tracker 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 Water Tracker or Danjiki AI Fasting Timer 16 have ads?

Neither Water Tracker nor Danjiki AI Fasting Timer 16 shows ads.

### Which is updated more often, Water Tracker or Danjiki AI Fasting Timer 16?

Water Tracker ships an update every 3 days, and Danjiki AI Fasting Timer 16 every 10 days. Most recently, Water Tracker was updated on November 8, 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.*