# DOY vs My Water

The clearest difference is update cadence: My Water at weekly against DOY's every 4 months. My Water also leads on iOS requirement (13.0 vs 15.0). 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.

DOY ships an update every 4 months, My Water weekly. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DOY | My Water |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/doy/id1208546429/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | — |
| Size | 6 MB | 55 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Hansen](https://appshunter.io/developer/312733912) | [Swallow Shuai Technology Development Co., Ltd.](https://appshunter.io/developer/1628485379) |

## What reviewers say

### DOY

[App page](https://appshunter.io/ios/app/doy/id1208546429)

This app helps you track important upcoming events by counting down the days. It also provides the Day Of Year and sunrise/sunset times for each event based on your location.

**Highlights:** Countdown to user-defined events, Displays Day Of Year for events, Provides sunrise and sunset times, Location-based sunrise/sunset data, Inspired by military 'short timer' tapes

**Features:** macOS Compatibility

**In-app purchases:** none


### My Water

[App page](https://appshunter.io/ios/app/my-water-daily-tracker/id6472012809)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DOY free?

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

### Is My Water free?

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

### Do DOY or My Water have ads?

Neither DOY nor My Water shows ads.

### Which is updated more often, DOY or My Water?

DOY ships an update every 4 months, and My Water weekly. Most recently, DOY was updated on October 20, 2026 and My Water on October 25, 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.*