# Focusing vs DoCube

The clearest difference is rating: Focusing at 5.0 against DoCube's 4.6. Focusing also leads on update cadence (every 10 days vs every 3 weeks). DoCube's advantage is ratings volume (11 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Focusing sells 2 one-off in-app purchases and DoCube sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Focusing holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: DoCube has 11 ratings behind it against 1, so its average is the more settled of the two.

Focusing ships an update every 10 days, DoCube every 3 weeks. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Focusing | DoCube |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/focusing-study-timer/id6450924766/reviews)** | [4.6 (11 ratings)](https://appshunter.io/ios/app/docube-pdf-reader-and-notes/id6470183496/reviews) |
| Number of ratings | 1 | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 91 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [业宏 庞](https://appshunter.io/developer/1695376557) | [巍 赵](https://appshunter.io/developer/1686869575) |

## What reviewers say

### Focusing

[App page](https://appshunter.io/ios/app/focusing-study-timer/id6450924766)

Boost your concentration and overcome procrastination with this minimalist timer. It uses the Pomodoro Technique to help you master your time, whether you're studying, working, or managing ADHD. Enjoy a clutter-free experience with customizable sounds and visual progress tracking.

**Highlights:** Pomodoro Technique timer, Customizable focus and break durations, Continuous auto-cycle mode, Visual progress tracker, Background operation with notifications, White noise and alarm sounds

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | one-time |
| Timer | $0.99 | one-time |


### DoCube

[App page](https://appshunter.io/ios/app/docube-pdf-reader-and-notes/id6470183496)

This app transforms reading into knowledge retention with features like multi-tab browsing, precise document navigation, and versatile annotation tools. It supports various formats and converts highlights into flashcards for effective memorization and review.

**Highlights:** Multi-tab reading for multiple documents, Precise document positioning and history navigation, Support for PDF, EPUB, Markdown, and web pages, Six annotation tools including highlights and notes, Cross-document linking for knowledge networks, Automatic flashcard creation from highlights, AI-enhanced card generation

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full-platform Professional Edition | $34.99 | one-time |


## Frequently asked questions

### Is Focusing free?

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

### Is DoCube free?

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

### Which has better reviews, Focusing or DoCube?

Focusing is rated higher. Focusing averages 5.0 out of 5 from 1 ratings, while DoCube averages 4.6 from 11 ratings.

### Do Focusing or DoCube have ads?

Neither Focusing nor DoCube shows ads.

### Which is updated more often, Focusing or DoCube?

Focusing ships an update every 10 days, and DoCube every 3 weeks. Most recently, Focusing was updated on September 29, 2026 and DoCube on October 6, 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.*