# Simple Interval Timer vs Water Reminder

The clearest difference is in-app purchases: Water Reminder at none against Simple Interval Timer's 2. Simple Interval Timer's advantage is ads (none vs shown) and update cadence (weekly vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Interval Timer sells 2 in-app purchases, starting at $0.99 per month. Water Reminder asks for nothing beyond the download.

Simple Interval Timer ships an update weekly, Water Reminder fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simple Interval Timer | Water Reminder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Size | 23 MB | 16 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [阳 童](https://appshunter.io/developer/1782546459) | [Aman Kumar](https://appshunter.io/developer/1890812511) |

## What reviewers say

### Simple Interval Timer

[App page](https://appshunter.io/ios/app/simple-interval-timer-flexy/id6742375743)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $0.99 | per month |
| Yearly Premium | $4.99 | per year |


### Water Reminder

[App page](https://appshunter.io/ios/app/water-reminder-hydrate/id6762639220)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simple Interval Timer free?

Simple Interval Timer is free to download, with in-app purchases available.

### Is Water Reminder free?

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

### Do Simple Interval Timer or Water Reminder have ads?

Water Reminder shows ads; Simple Interval Timer does not.

### Which is updated more often, Simple Interval Timer or Water Reminder?

Simple Interval Timer ships an update weekly, and Water Reminder fortnightly. Most recently, Simple Interval Timer was updated on October 30, 2026 and Water Reminder 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.*