# Interval Timer vs DTD ShotClock

The clearest difference is in-app purchases: DTD ShotClock at none against Interval Timer's 3. DTD ShotClock also leads on iOS requirement (12.0 vs 17.0). Interval Timer's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Interval Timer sells 3 in-app purchases, starting at $2.99 per month. DTD ShotClock asks for nothing beyond the download.

Interval Timer ships an update every 2 weeks, DTD ShotClock every 6 weeks. The most recent releases landed on October 6, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Interval Timer | DTD ShotClock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/interval-timer-focus-and-hiit/id6478761128/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 25 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Evgeny Goncharov](https://appshunter.io/developer/1726728195) | [DTD Leisure Ltd](https://appshunter.io/developer/1447120328) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-focus-and-hiit/id6478761128)

This app provides versatile timers for various activities, including high-intensity interval training, Pomodoro technique, and meditation. Its intuitive design and customizable modes help users focus on their tasks or workouts without distraction.

**Highlights:** Rotary knob for time setting, Four distinct timer modes (Timer, Pomodoro, Interval, Meditation), Customizable work/rest durations for intervals, Automatic session tracking for Pomodoro, Keyboard shortcuts for play/pause and reset, Native notifications and haptic feedback

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Annual Premium | $14.99 | per year |
| Phygital Timer Plus | $4.99 | one-time |


### DTD ShotClock

[App page](https://appshunter.io/ios/app/dtd-shotclock/id6744166846)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is DTD ShotClock free?

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

### Do Interval Timer or DTD ShotClock have ads?

Neither Interval Timer nor DTD ShotClock shows ads.

### Which is updated more often, Interval Timer or DTD ShotClock?

Interval Timer ships an update every 2 weeks, and DTD ShotClock every 6 weeks. Most recently, Interval Timer was updated on October 6, 2026 and DTD ShotClock on September 29, 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.*