# Flash Backyard ID vs My Water

The clearest difference is update cadence: My Water at weekly against Flash Backyard ID's monthly. 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.

Flash Backyard ID ships an update monthly, My Water weekly. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flash Backyard ID | My Water |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 69 MB | 55 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FLASH EXPRESS CO.,LTD](https://appshunter.io/developer/1322972723) | [Swallow Shuai Technology Development Co., Ltd.](https://appshunter.io/developer/1628485379) |

## What reviewers say

### Flash Backyard ID

[App page](https://appshunter.io/ios/app/flash-backyard-id/id1576191413)

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

**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 Flash Backyard ID free?

Flash Backyard ID 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 Flash Backyard ID or My Water have ads?

Neither Flash Backyard ID nor My Water shows ads.

### Which is updated more often, Flash Backyard ID or My Water?

Flash Backyard ID ships an update monthly, and My Water weekly. Most recently, Flash Backyard ID was updated on October 6, 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.*