# Sumi vs DEApp

The clearest difference is review sentiment: DEApp at 62% against Sumi's 0%. DEApp also leads on rating (4.5 vs 3.0) and ratings volume (8 vs 2). Sumi's advantage is monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Sumi sells 3 in-app purchases, starting at $5.99 per month and DEApp sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

DEApp holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 0% of Sumi's written reviews are positive against 62% of DEApp's.

Both ship on a similar rhythm, roughly every 5 days. Both last shipped on September 20, 2026.

## The numbers

| Metric | Sumi | DEApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/sumi-deep-work-focus/id6448810281/reviews) | **[4.5 (8 ratings)](https://appshunter.io/ios/app/deapp/id6459658940/reviews)** |
| Number of ratings | 2 | **8** |
| Positive reviews | 0.0% of reviews | **62.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 7 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [David Park](https://appshunter.io/developer/1686485618) | [UnCheon Baek](https://appshunter.io/developer/1143037815) |

## What reviewers say

### Sumi

[App page](https://appshunter.io/ios/app/sumi-deep-work-focus/id6448810281)

This app helps you reduce phone usage by setting timers for breaks. It alerts you if you touch or move your device during the break, aiming to boost productivity and mental well-being.

**Highlights:** Timed phone breaks, Movement alerts, Productivity enhancement, Mental health improvement, Simple interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sumi Pro Monthly | $5.99 | per month |
| Sumi Pro Annual | $24.99 | per year |
| Sumi Pro Lifetime | $49.99 | one-time |


### DEApp

[App page](https://appshunter.io/ios/app/deapp/id6459658940)

This app helps users break smartphone addiction and boost productivity by locking selected applications. Set schedules or timers for app usage, with features to prevent deletion or installation of new apps during lock periods.

**Highlights:** Scheduled app locking, Timer-based app locking, Deletion prevention, Installation prevention, Customizable lock schedules

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Apps | $0.99 | one-time |


## Frequently asked questions

### Is Sumi free?

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

### Is DEApp free?

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

### Which has better reviews, Sumi or DEApp?

DEApp is rated higher. Sumi averages 3.0 out of 5 from 2 ratings, while DEApp averages 4.5 from 8 ratings.

### Do Sumi or DEApp have ads?

Neither Sumi nor DEApp shows ads.

### Which is updated more often, Sumi or DEApp?

Sumi ships an update every 5 days, and DEApp every 5 days. Most recently, Sumi was updated on September 20, 2026 and DEApp on September 20, 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.*