# Personal Interval Timer vs World by Steps

The clearest difference is in-app purchases: World by Steps at none against Personal Interval Timer's 1. Personal Interval Timer's advantage is device support (3 vs 1) and iOS requirement (14.2 vs 17.0). On price, update cadence and ads there is nothing between them.

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

Personal Interval Timer ships an update every 4 weeks, World by Steps every 3 weeks. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Personal Interval Timer | World by Steps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (14 ratings)](https://appshunter.io/ios/app/personal-interval-timer/id1479646964/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 21 MB |
| Requires iOS | **14.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AlexApps.Net Co](https://appshunter.io/developer/972261962) | [Julien meyer](https://appshunter.io/developer/285361686) |

## What reviewers say

### Personal Interval Timer

[App page](https://appshunter.io/ios/app/personal-interval-timer/id1479646964)

This app helps you manage timed workouts for sports like boxing, HIIT, and Tabata. It offers customizable presets, workout history tracking, and works with a locked screen and background music. Share your routines with friends and receive voice or bell notifications.

**Highlights:** Works with locked screen, Plays with background music, Saves custom presets, Share workouts with friends, History and progress charts, Voice or bell notifications

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


### World by Steps

[App page](https://appshunter.io/ios/app/world-by-steps/id6759283990)

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

**In-app purchases:** none


## Frequently asked questions

### Is Personal Interval Timer free?

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

### Is World by Steps free?

World by Steps is free to download, with no in-app purchases.

### Do Personal Interval Timer or World by Steps have ads?

Both Personal Interval Timer and World by Steps show ads.

### Which is updated more often, Personal Interval Timer or World by Steps?

Personal Interval Timer ships an update every 4 weeks, and World by Steps every 3 weeks. Most recently, Personal Interval Timer was updated on October 9, 2026 and World by Steps on October 19, 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.*