# Koala Sleep Tracker vs Stress

The clearest difference is in-app purchases: Koala Sleep Tracker at none against Stress's 2. Koala Sleep Tracker also leads on iOS requirement (18.0 vs 26.0). Stress's advantage is device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Stress sells 2 in-app purchases, starting at $1.99 per 7 days. Koala Sleep Tracker asks for nothing beyond the download.

## The numbers

| Metric | Koala Sleep Tracker | Stress |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stress-hrv-tracker/id6784304541/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | — | Freemium |
| Size | 10 MB | 58 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Vasco de Graaff](https://appshunter.io/developer/1766914878) | [Sleep Pilot Technology Co., Ltd.](https://appshunter.io/developer/1682165802) |

## What reviewers say

### Koala Sleep Tracker

[App page](https://appshunter.io/ios/app/koala-sleep-tracker/id6782061692)

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

**In-app purchases:** none


### Stress

[App page](https://appshunter.io/ios/app/stress-hrv-tracker/id6784304541)

Understand your body's stress levels by tracking HRV, RHR, sleep, and activity against your personal baseline. Receive daily guidance on whether to push harder or rest, with integrated breathing exercises and mood logging.

**Highlights:** Personalized HRV and RHR baseline, Daily stress level assessment, Guided breathing exercises, Sleep and activity tracking, Mood and water logging, Watch complications and widgets, Data privacy and on-device processing

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stress App Weekly Premium | $1.99 | per 7 days |
| Stress App Annual Premium | $7.99 | per year |


## Frequently asked questions

### Is Koala Sleep Tracker free?

Koala Sleep Tracker is free to download, with no in-app purchases.

### Is Stress free?

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

### Do Koala Sleep Tracker or Stress have ads?

Neither Koala Sleep Tracker nor Stress 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.*