# Interval Timer vs Interval Randomizer

The clearest difference is in-app purchases: Interval Randomizer at none against Interval Timer's 8. Interval Randomizer also leads on ads (none vs shown). Interval Timer's advantage is update cadence (every 9 days vs monthly) and device support (4 vs 2). On price there is nothing between them.

Both are free to download. Interval Timer sells 6 in-app purchases, starting at $0.99 per month. Interval Randomizer asks for nothing beyond the download.

Interval Timer ships an update every 9 days, Interval Randomizer monthly. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Interval Timer | Interval Randomizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (19K ratings)](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568/reviews)** | — |
| Number of ratings | **19K** | — |
| Positive reviews | 72.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 143 MB | 6 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NEO PIXEL LABS PTE. LTD.](https://appshunter.io/developer/1788472183) | [Hitfire Production AB](https://appshunter.io/developer/1517601288) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568)

This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

**Highlights:** Customizable sets, intervals, and rest times, Runs in background and with screen locked, Music playlist integration, Save settings as templates, Apple Health integration for heart rate, Post workouts to social media

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus - 1 Month | $0.99 | per month |
| Premium - 1 Month | $1.99 | per month |
| Plus - 1 Month | $1.99 | per month |
| Premium - 1 Month | $2.99 | per month |
| Plus - 1 Year | $4.99 | per year |
| Premium - 1 Year | $9.99 | per year |

**What reviewers like**

- 🚀 Free version works well
- 👍 Customizable intervals and timers
- 👍 Flexible for different workouts
- 👍 Easy to use and set up
- 👍 Provides visual and audio cues

**What reviewers complain about**

- 🐛 Timer issues (stops, loses time)
- 🔋 Drains battery when used
- 💰 Expensive subscription model
- 📢 Intrusive ads
- 🔒 Incompatible with other apps

**Reported bugs**

- Ads block functionality
- App freezes or crashes
- Timer doesn't work in background

**Requested features**

- Add notes to workouts
- Provide workout history and analytics
- Allow syncing with Apple Health
- Improve Apple Watch integration
- Add more customization options


### Interval Randomizer

[App page](https://appshunter.io/ios/app/interval-randomizer-hiit/id6742220783)

**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 Interval Randomizer free?

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

### Do Interval Timer or Interval Randomizer have ads?

Interval Timer shows ads; Interval Randomizer does not.

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

Interval Timer ships an update every 9 days, and Interval Randomizer monthly. Most recently, Interval Timer was updated on November 5, 2026 and Interval Randomizer on October 30, 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.*