# Interval Timer vs Endura Virtual Challenges

The clearest difference is in-app purchases: Endura Virtual Challenges at none against Interval Timer's 1. Endura Virtual Challenges also leads on ads (none vs shown) and update cadence (every 4 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. Endura Virtual Challenges asks for nothing beyond the download.

Interval Timer ships an update every 2 months, Endura Virtual Challenges every 4 days. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Interval Timer | Endura Virtual Challenges |
| --- | --- | --- |
| 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 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 36 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) | [Guilherme Machado Santana](https://appshunter.io/developer/6797333846) |

## 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 |


### Endura Virtual Challenges

[App page](https://appshunter.io/ios/app/endura-virtual-challenges/id6797333844)

**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 Endura Virtual Challenges free?

Endura Virtual Challenges is free to download, with no in-app purchases.

### Do Interval Timer or Endura Virtual Challenges have ads?

Interval Timer shows ads; Endura Virtual Challenges does not.

### Which is updated more often, Interval Timer or Endura Virtual Challenges?

Interval Timer ships an update every 2 months, and Endura Virtual Challenges every 4 days. Most recently, Interval Timer was updated on October 19, 2026 and Endura Virtual Challenges on October 18, 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.*