# ClearSpace vs Acid Interval

The clearest difference is ads: Acid Interval at none against ClearSpace's shown. Acid Interval also leads on rating (5.0 vs 4.7). ClearSpace's advantage is ratings volume (9K vs 1). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. ClearSpace sells 7 in-app purchases, starting at $6.99 per month and Acid Interval sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Acid Interval holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: ClearSpace has 9K ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ClearSpace | Acid Interval |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (9K ratings)](https://appshunter.io/ios/app/clearspace-reduce-screen-time/id1572515807/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/acid-interval-focus-timer/id6815378728/reviews)** |
| Number of ratings | **9K** | 1 |
| Positive reviews | 69.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 80 MB | 1 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [clearspace](https://appshunter.io/developer/1653276930) | [Preston Carr](https://appshunter.io/developer/6815378730) |

## What reviewers say

### ClearSpace

[App page](https://appshunter.io/ios/app/clearspace-reduce-screen-time/id1572515807)

This app helps you regain control of your phone usage by making your device less addictive. It offers tools to block distractions, manage app time, and build better digital habits. Achieve greater focus, productivity, and mental well-being by reducing impulse opens and doomscrolling.

**Highlights:** Block and limit distracting apps, Manage social media doomscrolling, Set schedules for app usage, Build better digital habits, Engage in attention-building challenges, Minimalist and straightforward design, Accountability partners for goals, Detailed screen time reporting

**Features:** Family Sharing, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClearSpace Premium (Monthly) | $6.99 | per month |
| ClearSpace Premium (Annual) | $44.99 | per year |
| Clearspace Premium | $44.99 | per year |
| Clearspace Premium | $49.99 | per year |
| Clearspace Premium | $49.99 | per year |
| Clearspace Premium | $59.99 | per year |
| Clearspace Premium Family | $79.99 | per year |

**What reviewers like**

- 👍 Helps reduce screen time
- 🚀 Effective at limiting app usage
- 💡 Breathing exercise and quotes are helpful
- 🤖 Tracks app usage well
- 🤔 Makes users more mindful about phone usage

**What reviewers complain about**

- 🐛 Buggy and laggy performance
- 💰 Expensive subscription
- 🔓 Allows bypassing restrictions
- 🤖 Limited to one app in free version
- 🤔 Breathing exercise can be annoying

**Reported bugs**

- Crashes when trying to block apps
- Notification issues and UI glitches
- Inconsistent tracking of app usage
- Problems with phone number verification

**Requested features**

- Allow blocking multiple apps in free version
- Add more exercise options beyond just breathing
- Provide more customization options
- Integrate with other fitness/health tracking apps
- Improve website/app blocking capabilities


### Acid Interval

[App page](https://appshunter.io/ios/app/acid-interval-focus-timer/id6815378728)

This focus timer offers a visually unique approach to deep work, moving away from traditional interfaces. It provides customizable timers and engaging visual feedback to help users stay on task, even with the screen off. The app prioritizes a distraction-free experience with no account or data syncing required.

**Highlights:** Unique visual interface, Customizable timer intervals, Engaging animation mechanisms, Screen-off notifications, No account or data sync, Phone lock compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Acid Interval Pro | $2.99 | one-time |


## Frequently asked questions

### Is ClearSpace free?

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

### Is Acid Interval free?

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

### Which has better reviews, ClearSpace or Acid Interval?

Acid Interval is rated higher. ClearSpace averages 4.7 out of 5 from 9K ratings, while Acid Interval averages 5.0 from 1 ratings.

### Do ClearSpace or Acid Interval have ads?

ClearSpace shows ads; Acid Interval does not.

### Which is updated more often, ClearSpace or Acid Interval?

ClearSpace ships an update every 2 weeks, and Acid Interval every 2 weeks. Most recently, ClearSpace was updated on November 7, 2026 and Acid Interval on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*