# GNX Fit vs SleepFlow Sleep Tracker

The clearest difference is in-app purchases: SleepFlow Sleep Tracker at none against GNX Fit's 2. SleepFlow Sleep Tracker also leads on update cadence (daily vs every 3 days). GNX Fit's advantage is iOS requirement (15.6 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. GNX Fit sells 2 in-app purchases, starting at $5.99 per month. SleepFlow Sleep Tracker asks for nothing beyond the download.

GNX Fit ships an update every 3 days, SleepFlow Sleep Tracker daily. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | GNX Fit | SleepFlow Sleep Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sleepflow-sleep-tracker/id6757989734/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | **Daily** |
| Monetization | — | Free |
| Size | 95 MB | 4 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Genesis NX](https://appshunter.io/developer/1818945352) | [Fabio Mota](https://appshunter.io/developer/1866114975) |

## What reviewers say

### GNX Fit

[App page](https://appshunter.io/ios/app/gnx-fit/id6746904598)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $5.99 | per month |
| Yearly Subscription | $59.99 | per year |


### SleepFlow Sleep Tracker

[App page](https://appshunter.io/ios/app/sleepflow-sleep-tracker/id6757989734)

Understand your sleep patterns, build consistent habits, and wake up refreshed. This app offers simple tracking, insightful trends, and personalized goals to improve your sleep quality without complexity. Your data remains private and on your device.

**Highlights:** Sleep tracking and logging, Sleep history and trend visualization, Sleep statistics and deep sleep insights, Daily streak motivation, Smart bedtime and wake-up reminders, Personalized sleep duration goals, Privacy-focused, on-device data storage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GNX Fit free?

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

### Is SleepFlow Sleep Tracker free?

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

### Do GNX Fit or SleepFlow Sleep Tracker have ads?

Neither GNX Fit nor SleepFlow Sleep Tracker shows ads.

### Which is updated more often, GNX Fit or SleepFlow Sleep Tracker?

GNX Fit ships an update every 3 days, and SleepFlow Sleep Tracker daily. Most recently, GNX Fit was updated on October 15, 2026 and SleepFlow Sleep Tracker on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*