# HIIT X vs Lullabyte

The clearest difference is in-app purchases: HIIT X at none against Lullabyte's 1. HIIT X also leads on update cadence (every 4 weeks vs every 2 months). Lullabyte's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Lullabyte sells 1 one-off in-app purchase. HIIT X asks for nothing beyond the download.

HIIT X ships an update every 4 weeks, Lullabyte every 2 months. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | HIIT X | Lullabyte |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (44 ratings)](https://appshunter.io/ios/app/hiit-x/id6476117611/reviews)** | — |
| Number of ratings | **44** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 47 MB | 39 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ortega time industries, inc.](https://appshunter.io/developer/1629075083) | [VibeCMD](https://appshunter.io/developer/1879550677) |

## What reviewers say

### HIIT X

[App page](https://appshunter.io/ios/app/hiit-x/id6476117611)

Engage in high-intensity workouts designed for quick, real results in just 40 minutes. This app offers a 4-zone method targeting strength, agility, endurance, and power. Enjoy flexible 10-minute rolling start times for ultimate accessibility and join a supportive fitness community.

**Highlights:** 40-minute high-intensity workouts, 4-zone training method, Strength, agility, endurance, power focus, Flexible 10-minute rolling start times, Fitness journey tracking, Community support

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Lullabyte

[App page](https://appshunter.io/ios/app/lullabyte/id6759615211)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lullabyte Pro | $2.99 | one-time |


## Frequently asked questions

### Is HIIT X free?

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

### Is Lullabyte free?

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

### Do HIIT X or Lullabyte have ads?

HIIT X shows ads; Lullabyte does not.

### Which is updated more often, HIIT X or Lullabyte?

HIIT X ships an update every 4 weeks, and Lullabyte every 2 months. Most recently, HIIT X was updated on October 11, 2026 and Lullabyte on October 4, 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.*