# Water vs SleepStack

Water and SleepStack are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Water sells 1 one-off in-app purchase and SleepStack sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Water | SleepStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/sleepstack-sleep-protocol/id6760767864/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 49 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pablo Eduardo Zurita De Diego](https://appshunter.io/developer/1861388459) | [NUNE LLC](https://appshunter.io/developer/1838850912) |

## What reviewers say

### Water

[App page](https://appshunter.io/ios/app/water/id6757210193)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Water Pro Lifetime | $4.99 | one-time |


### SleepStack

[App page](https://appshunter.io/ios/app/sleepstack-sleep-protocol/id6760767864)

This app helps you build better sleep habits with guided routines, sleep tracking, and relaxation techniques. It monitors your sleep environment and provides feedback to improve your rest and morning recovery. Protect your sleep from phone distractions with app blocking features.

**Highlights:** Personalized bedtime routine builder, Sleep Score and insights tracking, Guided relaxation techniques, App blocking for sleep protection, Sleep environment monitoring, Morning energy and recovery feedback, Gamified sleep habit tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SleepMaxer Pro weekly | $9.99 | per 7 days |
| SleepMaxer Pro Yearly | $49.99 | per year |
| SleepStack Yearly | $59.99 | per year |


## Frequently asked questions

### Is Water free?

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

### Is SleepStack free?

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

### Do Water or SleepStack have ads?

Neither Water nor SleepStack shows ads.

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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.*