# Pacelab Interval Timer vs Flash Interval Timer Workout

The clearest difference is ads: Pacelab Interval Timer at none against Flash Interval Timer Workout's shown. Flash Interval Timer Workout's advantage is update cadence (every 9 days vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Pacelab Interval Timer ships an update every 4 months, Flash Interval Timer Workout every 9 days. The most recent releases landed on September 27, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Pacelab Interval Timer | Flash Interval Timer Workout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (7 ratings)](https://appshunter.io/ios/app/flash-interval-timer-workout/id6761573911/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | — | Ad-supported |
| Size | 24 MB | 43 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Newbuildsoft](https://appshunter.io/developer/1834215268) | [Colin Differ](https://appshunter.io/developer/1823248120) |

## What reviewers say

### Pacelab Interval Timer

[App page](https://appshunter.io/ios/app/pacelab-interval-timer/id6757274503)

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

**In-app purchases:** none


### Flash Interval Timer Workout

[App page](https://appshunter.io/ios/app/flash-interval-timer-workout/id6761573911)

This app provides a customizable interval timer for various high-intensity interval training (HIIT) and circuit workouts. Easily build, save, and access your training sessions with clear visual cues and audio prompts to keep you focused.

**Highlights:** Customizable work and rest phases, Save and favorite workouts, Large, clear countdown display, Audio and voice cues, Workout history tracking, Multiple appearance themes

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

**In-app purchases:** none


## Frequently asked questions

### Is Pacelab Interval Timer free?

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

### Is Flash Interval Timer Workout free?

Flash Interval Timer Workout is free to download, with no in-app purchases.

### Do Pacelab Interval Timer or Flash Interval Timer Workout have ads?

Flash Interval Timer Workout shows ads; Pacelab Interval Timer does not.

### Which is updated more often, Pacelab Interval Timer or Flash Interval Timer Workout?

Pacelab Interval Timer ships an update every 4 months, and Flash Interval Timer Workout every 9 days. Most recently, Pacelab Interval Timer was updated on September 27, 2026 and Flash Interval Timer Workout 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.*