# CoinFlipr vs Water Purifier Diary

The clearest difference is in-app purchases: CoinFlipr at none against Water Purifier Diary's 2. CoinFlipr also leads on ads (none vs shown) and update cadence (daily vs every 3 weeks). Water Purifier Diary's advantage is iOS requirement (13.0 vs 17.4). On price and device support there is nothing between them.

Both are free to download. Water Purifier Diary sells 2 in-app purchases, starting at $0.99 per month. CoinFlipr asks for nothing beyond the download.

CoinFlipr ships an update daily, Water Purifier Diary every 3 weeks. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CoinFlipr | Water Purifier Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coinflipr/id6743348633/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | Free | — |
| Size | 3 MB | 41 MB |
| Requires iOS | 17.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lauro Pimentel](https://appshunter.io/developer/1739370677) | [HAO CHANG KUO](https://appshunter.io/developer/1735524069) |

## What reviewers say

### CoinFlipr

[App page](https://appshunter.io/ios/app/coinflipr/id6743348633)

This app provides a simple and stylish way to flip a virtual coin for decision-making or fun. It features a sleek dark mode, instant flips, and a history log to track past results. Always accessible, it's a convenient tool for resolving debates or testing luck.

**Highlights:** Instant coin flips, Dark mode interface, Flip history tracking, Elegant minimalist design, Always accessible utility

**Features:** macOS Compatibility

**In-app purchases:** none


### Water Purifier Diary

[App page](https://appshunter.io/ios/app/water-purifier-diary/id6761051602)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $0.99 | per month |
| Pro (Yearly) | $8.99 | per year |


## Frequently asked questions

### Is CoinFlipr free?

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

### Is Water Purifier Diary free?

Water Purifier Diary is free to download, with in-app purchases available.

### Do CoinFlipr or Water Purifier Diary have ads?

Water Purifier Diary shows ads; CoinFlipr does not.

### Which is updated more often, CoinFlipr or Water Purifier Diary?

CoinFlipr ships an update daily, and Water Purifier Diary every 3 weeks. Most recently, CoinFlipr was updated on October 16, 2026 and Water Purifier Diary on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*