# BlackPulse vs Rounds

The clearest difference is iOS requirement: BlackPulse at 15.1 against Rounds's 18.0. On price, update cadence, 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.

BlackPulse ships an update every 10 days, Rounds every 2 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BlackPulse | Rounds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rounds-interval-hiit-timer/id6762529965/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | — | Free |
| Size | 66 MB | 49 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OTOSMART BILGI TEKNOLOJILERI ANONIM SIRKETI](https://appshunter.io/developer/1884870044) | [Nightjar Labs LLC.](https://appshunter.io/developer/1466628290) |

## What reviewers say

### BlackPulse

[App page](https://appshunter.io/ios/app/blackpulse-hiit-workout-timer/id6760541384)

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

**In-app purchases:** none


### Rounds

[App page](https://appshunter.io/ios/app/rounds-interval-hiit-timer/id6762529965)

This interval timer app simplifies workout creation for various training styles like HIIT, Tabata, and circuits. Build custom routines by stacking work, rest, and prep blocks, grouping them into rounds, and saving them as presets for quick access. It's designed for gym use, ensuring it won't interrupt your music.

**Highlights:** Customizable workout builder, Stackable work, rest, and prep blocks, Round grouping and repetition, Save and launch preset workouts, Music interruption-free design, Customizable sound profiles

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

**In-app purchases:** none


## Frequently asked questions

### Is BlackPulse free?

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

### Is Rounds free?

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

### Do BlackPulse or Rounds have ads?

Neither BlackPulse nor Rounds shows ads.

### Which is updated more often, BlackPulse or Rounds?

BlackPulse ships an update every 10 days, and Rounds every 2 weeks. Most recently, BlackPulse was updated on October 24, 2026 and Rounds on October 31, 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.*