# JustSummarize vs 2sBrain

The clearest difference is update cadence: 2sBrain at weekly against JustSummarize's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. JustSummarize sells 4 in-app purchases, starting at $2.99 per month and 2sBrain sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

JustSummarize ships an update every 3 weeks, 2sBrain weekly. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | JustSummarize | 2sBrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/justsummarize-ai-summarizer/id6758664118/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Freemium | — |
| Size | 48 MB | 66 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Mustafa Nabil](https://appshunter.io/developer/1874265900) | [Nguyen Nhu Vuong](https://appshunter.io/developer/1486864462) |

## What reviewers say

### JustSummarize

[App page](https://appshunter.io/ios/app/justsummarize-ai-summarizer/id6758664118)

Instantly condense articles, PDFs, links, and images into key points. Get clear, concise summaries in under 10 seconds, supporting over 20 languages and customizable formats. Reclaim your time and stay informed efficiently.

**Highlights:** AI-powered summarization, Summarize articles, PDFs, links, and images, 10-second summaries, Supports 20+ languages, Choose bullet or paragraph format, History and saved summaries

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Just Summarize Premium | $4.99 | per month |
| Just Summarize Premium | $39.99 | per year |
| JustSummarize Pro Lifetime | $34.99 | one-time |


### 2sBrain

[App page](https://appshunter.io/ios/app/2sbrainai-pdf-document-reader/id6768344372)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly | $3.99 | per month |
| VIP Yearly | $19.99 | per year |
| VIP Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is JustSummarize free?

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

### Is 2sBrain free?

2sBrain is free to download, with in-app purchases available.

### Do JustSummarize or 2sBrain have ads?

Neither JustSummarize nor 2sBrain shows ads.

### Which is updated more often, JustSummarize or 2sBrain?

JustSummarize ships an update every 3 weeks, and 2sBrain weekly. Most recently, JustSummarize was updated on October 1, 2026 and 2sBrain on October 8, 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.*