# AcornSleep vs EZ HIIT Workout Interval Timer

The clearest difference is in-app purchases: AcornSleep at none against EZ HIIT Workout Interval Timer's 4. AcornSleep also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. EZ HIIT Workout Interval Timer sells 4 in-app purchases, starting at $2.99 per month. AcornSleep asks for nothing beyond the download.

AcornSleep ships an update every 10 days, EZ HIIT Workout Interval Timer fortnightly. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | AcornSleep | EZ HIIT Workout Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ez-hiit-workout-interval-timer/id6744654423/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 78 MB | 67 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Canoe LLC](https://appshunter.io/developer/1628260135) | [Alexander Mayer](https://appshunter.io/developer/1776128059) |

## What reviewers say

### AcornSleep

[App page](https://appshunter.io/ios/app/acornsleep/id6443873278)

**In-app purchases:** none


### EZ HIIT Workout Interval Timer

[App page](https://appshunter.io/ios/app/ez-hiit-workout-interval-timer/id6744654423)

This interval timer offers a clean and powerful way to manage custom workouts, from HIIT and Tabata to strength training. It provides visual and audio cues, tracks progress, and works offline for ultimate convenience. Upgrade for unlimited saved workouts and cloud sync.

**Highlights:** Customizable intervals, Visual and audio cues, Workout tracking, Offline functionality, Quick-start design, Multiple workout styles supported

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EZ HIIT Timer Pro+ | $2.99 | per month |
| EZ HIIT Timer Pro+ | $19.99 | per year |
| EZ HIIT Timer Pro+ | $19.99 | per year |
| EZ HIIT Timer Pro | $3.99 | one-time |


## Frequently asked questions

### Is AcornSleep free?

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

### Is EZ HIIT Workout Interval Timer free?

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

### Do AcornSleep or EZ HIIT Workout Interval Timer have ads?

Neither AcornSleep nor EZ HIIT Workout Interval Timer shows ads.

### Which is updated more often, AcornSleep or EZ HIIT Workout Interval Timer?

AcornSleep ships an update every 10 days, and EZ HIIT Workout Interval Timer fortnightly. Most recently, AcornSleep was updated on October 6, 2026 and EZ HIIT Workout Interval Timer on October 1, 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.*