# FS8 Studio vs Fair Interval Timer

The clearest difference is in-app purchases: FS8 Studio at none against Fair Interval Timer's 1. FS8 Studio also leads on ads (none vs shown) and iOS requirement (13.5 vs 16.4). Fair Interval Timer's advantage is update cadence (every 5 days vs every 39 months). On price and device support there is nothing between them.

Both are free to download. Fair Interval Timer sells 1 one-off in-app purchase. FS8 Studio asks for nothing beyond the download.

FS8 Studio ships an update every 39 months, Fair Interval Timer every 5 days. The most recent releases landed on June 1, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | FS8 Studio | Fair Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 39 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 14 MB | 57 MB |
| Requires iOS | **13.5** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FS8 Inc.](https://appshunter.io/developer/1552735060) | [Leander Joshua Kilian](https://appshunter.io/developer/1895129854) |

## What reviewers say

### FS8 Studio

[App page](https://appshunter.io/ios/app/fs8-studio/id1609929810)

Easily book fitness classes, manage your membership, and stay updated on new products and services. Make reservations, join waitlists, and check your profile status all from your mobile device.

**Highlights:** Book classes easily, Manage membership status, Join waitlists, Purchase class packages, Check profile information, Stay updated on products/services

**Features:** macOS Compatibility

**In-app purchases:** none


### Fair Interval Timer

[App page](https://appshunter.io/ios/app/fair-interval-timer/id6776839879)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads Forever | $3.99 | one-time |


## Frequently asked questions

### Is FS8 Studio free?

FS8 Studio is free to download, with no in-app purchases.

### Is Fair Interval Timer free?

Fair Interval Timer is free to download, with in-app purchases available.

### Do FS8 Studio or Fair Interval Timer have ads?

Fair Interval Timer shows ads; FS8 Studio does not.

### Which is updated more often, FS8 Studio or Fair Interval Timer?

FS8 Studio ships an update every 39 months, and Fair Interval Timer every 5 days. Most recently, FS8 Studio was updated on June 1, 2026 and Fair Interval Timer on September 11, 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.*