# Interval Timer vs DynoForce

The clearest difference is in-app purchases: DynoForce at none against Interval Timer's 1. DynoForce also leads on ads (none vs shown) and update cadence (every 6 days vs every 2 months). Interval Timer's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 15.1). On price there is nothing between them.

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

Interval Timer ships an update every 2 months, DynoForce every 6 days. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Interval Timer | DynoForce |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (246 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692/reviews)** | — |
| Number of ratings | **246** | — |
| Positive reviews | 83.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 101 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yosyp Hameliak](https://appshunter.io/developer/895008826) | [Dario Neuenschwander](https://appshunter.io/developer/1876276529) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692)

This interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.

**Highlights:** Customizable work and rest periods, Set number of sets and rounds, Background operation support, Music playback compatibility, Apple Watch integration, Heart rate monitoring (Apple Watch)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### DynoForce

[App page](https://appshunter.io/ios/app/dynoforce/id6759002748)

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

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is DynoForce free?

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

### Do Interval Timer or DynoForce have ads?

Interval Timer shows ads; DynoForce does not.

### Which is updated more often, Interval Timer or DynoForce?

Interval Timer ships an update every 2 months, and DynoForce every 6 days. Most recently, Interval Timer was updated on October 15, 2026 and DynoForce on October 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.*