# Intervall vs Shift

The clearest difference is update cadence: Shift at every 5 days against Intervall's monthly. Shift also leads on ratings volume (3 vs 1). Intervall's advantage is iOS requirement (18.0 vs 26). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Intervall against 5.0 for Shift. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Intervall ships an update monthly, Shift every 5 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Intervall | Shift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/intervall/id6760841694/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/shift-workout-interval-timer/id6805132734/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free | Free |
| Size | 4 MB | 52 MB |
| Requires iOS | **18.0** | 26 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ruben Musca](https://appshunter.io/developer/1885574171) | [Jorick van Meijeren](https://appshunter.io/developer/1882811593) |

## What reviewers say

### Intervall

[App page](https://appshunter.io/ios/app/intervall/id6760841694)

Create and run custom interval training routines with a clear, legible timer. This app syncs with Apple Watch to display heart rate and control workouts, and can save data to Apple Health.

**Highlights:** Custom interval workouts, Save and reuse workouts, Large, readable timer, Apple Watch mirroring, Watch controls, Live heart rate display, Apple Health integration

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Shift

[App page](https://appshunter.io/ios/app/shift-workout-interval-timer/id6805132734)

This interval timer app simplifies workout setup with customizable work, rest, and repeat cycles. It offers background timing, voice cues, and a live activity display for seamless tracking. Your workout history is stored locally for easy recall.

**Highlights:** Customizable work, rest, and repeat intervals, Background workout timing, Voice cues and tone options, Live Activity on Lock Screen/Dynamic Island, Workout history stored locally, Sideways workout display option

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

**In-app purchases:** none


## Frequently asked questions

### Is Intervall free?

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

### Is Shift free?

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

### Which has better reviews, Intervall or Shift?

Intervall and Shift are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Intervall or Shift have ads?

Neither Intervall nor Shift shows ads.

### Which is updated more often, Intervall or Shift?

Intervall ships an update monthly, and Shift every 5 days. Most recently, Intervall was updated on November 5, 2026 and Shift on November 10, 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.*