# Red Zone vs Watimer

The clearest difference is in-app purchases: Red Zone at none against Watimer's 2. Red Zone also leads on ads (none vs shown) and update cadence (monthly vs every 13 months). Watimer's advantage is iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Watimer sells 2 in-app purchases, starting at $4.99 per month. Red Zone asks for nothing beyond the download.

Red Zone ships an update monthly, Watimer every 13 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Red Zone | Watimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/watimer-hydration-reminder/id6741464170/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 13 months |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 27 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TrantorMind s.r.l](https://appshunter.io/developer/1331878308) | [kota tada](https://appshunter.io/developer/1658942612) |

## What reviewers say

### Red Zone

[App page](https://appshunter.io/ios/app/red-zone/id1553761417)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Watimer

[App page](https://appshunter.io/ios/app/watimer-hydration-reminder/id6741464170)

This app helps you maintain a healthy lifestyle by providing timely reminders to drink water. Easily log your intake and manage hydration goals to improve concentration, reduce fatigue, and boost metabolism. Make tracking your daily water consumption a simple habit.

**Highlights:** Timely hydration reminders, Easy water intake logging, Hydration goal management, Health benefit tracking, Habit formation support

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free for 1 month | $4.99 | per month |
| Ad-free for 1 year | $49.99 | per year |


## Frequently asked questions

### Is Red Zone free?

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

### Is Watimer free?

Watimer is free to download, with in-app purchases available.

### Do Red Zone or Watimer have ads?

Watimer shows ads; Red Zone does not.

### Which is updated more often, Red Zone or Watimer?

Red Zone ships an update monthly, and Watimer every 13 months. Most recently, Red Zone was updated on October 14, 2026 and Watimer on October 7, 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.*