# ReviewBook vs X

The clearest difference is in-app purchases: X at none against ReviewBook's 1. ReviewBook's advantage is update cadence (every 2 days vs monthly) and ratings volume (7 vs 2). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. ReviewBook sells 1 one-off in-app purchase. X asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for ReviewBook against 5.0 for X. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

ReviewBook ships an update every 2 days, X monthly. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ReviewBook | X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (7 ratings)](https://appshunter.io/ios/app/reviewbook/id1487760339/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/x-notes-ai-study-notes/id6498873540/reviews) |
| Number of ratings | **7** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 84 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Austin Marino](https://appshunter.io/developer/1487760338) | [VanAnh Nguyen](https://appshunter.io/developer/1768719425) |

## What reviewers say

### ReviewBook

[App page](https://appshunter.io/ios/app/reviewbook/id1487760339)

Securely record and revisit your personal experiences, from drinks and books to concerts and movies. Never forget how you felt about past events to better navigate future ones. This journal helps you recall the good, the bad, and everything in between.

**Highlights:** Securely catalog personal experiences, Record feelings about events, Recall past experiences, Track drinks, books, movies, concerts, Personalized memory journal

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


### X

[App page](https://appshunter.io/ios/app/x-notes-ai-study-notes/id6498873540)

This AI-powered note-taking app helps students organize and access study materials across devices. It converts handwriting, speech, and images to text, and allows for lecture recording. Notes are kept private and secure within the Apple ecosystem.

**Highlights:** Handwriting to Text conversion, Speech to Text for lectures, Image to Text (OCR), Voice notes for lectures, iPad & Mac sync via iCloud, Private and secure note-taking

**In-app purchases:** none


## Frequently asked questions

### Is ReviewBook free?

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

### Is X free?

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

### Which has better reviews, ReviewBook or X?

ReviewBook and X are both rated 5.0 out of 5 on the App Store, from 7 and 2 ratings respectively.

### Do ReviewBook or X have ads?

Neither ReviewBook nor X shows ads.

### Which is updated more often, ReviewBook or X?

ReviewBook ships an update every 2 days, and X monthly. Most recently, ReviewBook was updated on October 9, 2026 and X on October 13, 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.*