# FitUp. vs interval timer hiit or running

The clearest difference is price: FitUp. at Free against interval timer hiit or running's $0.99. interval timer hiit or running's advantage is update cadence (every 3 weeks vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

FitUp. is free to download; interval timer hiit or running costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FitUp. ships an update every 6 months, interval timer hiit or running every 3 weeks. The most recent releases landed on September 8, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | FitUp. | interval timer hiit or running |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 147 MB | 1 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Fit-Up Rhein-Wied GmbH](https://appshunter.io/developer/1534183137) | [Sylvain Huon](https://appshunter.io/developer/1552904209) |

## What reviewers say

### FitUp.

[App page](https://appshunter.io/ios/app/fitup/id1534183135)

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

**In-app purchases:** none


### interval timer hiit or running

[App page](https://appshunter.io/ios/app/interval-timer-hiit-or-running/id6447249321)

This interval timer app helps you set up HIIT, workout, or running sessions quickly. Customize workout and rest times, with visual cues and optional sound/vibration alerts. It works in the background, allowing you to use other apps simultaneously.

**Highlights:** Customizable interval timers, Visual phase indicators, Sound and vibration alerts, Background operation, Minimalist user interface, Supports Apple Watch

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is FitUp. free?

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

### Is interval timer hiit or running free?

interval timer hiit or running costs $0.99, with no in-app purchases.

### Do FitUp. or interval timer hiit or running have ads?

Neither FitUp. nor interval timer hiit or running shows ads.

### Which is updated more often, FitUp. or interval timer hiit or running?

FitUp. ships an update every 6 months, and interval timer hiit or running every 3 weeks. Most recently, FitUp. was updated on September 8, 2026 and interval timer hiit or running on September 17, 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.*