# Modern Interval Workout Timer vs VoltTimer

The clearest difference is update cadence: Modern Interval Workout Timer at every 4 days against VoltTimer's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Modern Interval Workout Timer sells 3 in-app purchases, starting at $0.99 per month and VoltTimer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Modern Interval Workout Timer ships an update every 4 days, VoltTimer every 3 weeks. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Modern Interval Workout Timer | VoltTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/modern-interval-workout-timer/id6733239641/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 9 MB | 6 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Marc Gauthier](https://appshunter.io/developer/834944348) | [CherneyWerk LLC](https://appshunter.io/developer/1887149773) |

## What reviewers say

### Modern Interval Workout Timer

[App page](https://appshunter.io/ios/app/modern-interval-workout-timer/id6733239641)

This versatile timer supports HIIT, Tabata, circuit training, and combat sports like boxing. Customize visuals, sounds, and presets for a personalized workout experience. Track and replay past sessions with a clean, ad-free interface.

**Highlights:** Interval and regular timer modes, Customizable themes and sounds, Large, bold visuals, Pre-made and saved presets, Workout log and replay, Ad-free experience

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (monthly subscription) | $0.99 | per month |
| Premium (yearly subscription) | $4.99 | per year |
| Lifetime premium | $14.99 | one-time |


### VoltTimer

[App page](https://appshunter.io/ios/app/volttimer-workout-timer/id6760988281)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VoltTimer Pro | $3.99 | one-time |


## Frequently asked questions

### Is Modern Interval Workout Timer free?

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

### Is VoltTimer free?

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

### Do Modern Interval Workout Timer or VoltTimer have ads?

Neither Modern Interval Workout Timer nor VoltTimer shows ads.

### Which is updated more often, Modern Interval Workout Timer or VoltTimer?

Modern Interval Workout Timer ships an update every 4 days, and VoltTimer every 3 weeks. Most recently, Modern Interval Workout Timer was updated on October 12, 2026 and VoltTimer on October 7, 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.*