# FTNSS vs Sleep Key

The clearest difference is rating: FTNSS at 5.0 against Sleep Key's 4.0. FTNSS also leads on in-app purchases (none vs 2) and iOS requirement (13.4 vs 15.0). Sleep Key's advantage is ratings volume (6 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Sleep Key sells 2 in-app purchases, starting at $9.99 per month. FTNSS asks for nothing beyond the download.

FTNSS holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Sleep Key has 6 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | FTNSS | Sleep Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ftnss/id6480354202/reviews)** | [4.0 (6 ratings)](https://appshunter.io/ios/app/sleep-key-tracker-sound/id6756638306/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | **Free** | Freemium |
| Size | 51 MB | 144 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FTNSS Inc.](https://appshunter.io/developer/1738796022) | [Waqto LLC](https://appshunter.io/developer/1546456454) |

## What reviewers say

### FTNSS

[App page](https://appshunter.io/ios/app/ftnss/id6480354202)

Purchase short-term gym access, including day and week passes, without long-term contracts. Discover and book local gyms, fitness classes, and personal trainers with flexible payment options.

**Highlights:** Short-term gym day/week passes, Find gyms by location, Book fitness classes, Find personal trainers, Seamless booking and payment, Gym reviews and community

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Sleep Key

[App page](https://appshunter.io/ios/app/sleep-key-tracker-sound/id6756638306)

This app analyzes your sleep patterns, detects snoring and environmental noise, and offers a smart alarm to wake you during your lightest sleep phase. It also correlates sleep quality with weather conditions and integrates with health data to provide insights for better rest.

**Highlights:** Intelligent smart alarm, Snore and audio recorder, Environmental noise analysis, Weather and sleep correlation, Heart rate and respiratory rate monitoring, Sleep stage tracking, Apple Health integration

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Month) | $9.99 | per month |
| Annual | $59.99 | per year |


## Frequently asked questions

### Is FTNSS free?

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

### Is Sleep Key free?

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

### Which has better reviews, FTNSS or Sleep Key?

FTNSS is rated higher. FTNSS averages 5.0 out of 5 from 1 ratings, while Sleep Key averages 4.0 from 6 ratings.

### Do FTNSS or Sleep Key have ads?

Neither FTNSS nor Sleep Key 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.*