# SoulStrength Fit vs SleepStack

The clearest difference is in-app purchases: SoulStrength Fit at none against SleepStack's 3. SoulStrength Fit also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. SleepStack sells 3 in-app purchases, starting at $4.99 per 7 days. SoulStrength Fit asks for nothing beyond the download.

SoulStrength Fit ships an update weekly, SleepStack every 10 days. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SoulStrength Fit | SleepStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/sleepstack-sleep-protocol/id6760767864/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 49 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Toolbox Industries Inc.](https://appshunter.io/developer/1736844015) | [NUNE LLC](https://appshunter.io/developer/1838850912) |

## What reviewers say

### SoulStrength Fit

[App page](https://appshunter.io/ios/app/soulstrength-fit/id6478868547)

Access all your faith-based fitness videos in one convenient app. Receive notifications for the latest updates and easily save your favorite content for quick access. Enjoy a seamless experience without needing to remember passwords.

**Highlights:** Access all videos in one app, Push notifications for news, Password-free video access, Save favorite posts, Easy to use interface

**In-app purchases:** none


### 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 |
| --- | --- | --- |
| SleepStack Pro weekly | $4.99 | per 7 days |
| SleepStack Pro Yearly | $29.99 | per year |
| SleepStack Yearly | $59.99 | per year |


## Frequently asked questions

### Is SoulStrength Fit free?

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

### Is SleepStack free?

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

### Do SoulStrength Fit or SleepStack have ads?

Neither SoulStrength Fit nor SleepStack shows ads.

### Which is updated more often, SoulStrength Fit or SleepStack?

SoulStrength Fit ships an update weekly, and SleepStack every 10 days. Most recently, SoulStrength Fit was updated on October 2, 2026 and SleepStack on October 3, 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.*