# Memrbl vs Underlined

The clearest difference is iOS requirement: Memrbl at 16.0 against Underlined's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Memrbl sells 3 in-app purchases, starting at $2.99 per 7 days and Underlined sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Memrbl ships an update every 10 days, Underlined fortnightly. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Memrbl | Underlined |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/memrbl-read-to-scroll/id6740221182/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 80 MB | 24 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Untitld Labs](https://appshunter.io/developer/1789030523) | [Mert Arman](https://appshunter.io/developer/6795348333) |

## What reviewers say

### Memrbl

[App page](https://appshunter.io/ios/app/memrbl-read-to-scroll/id6740221182)

Transform your reading into an active learning experience. This app uses AI to create interactive challenges, quizzes, and summaries from your books, enhancing memory and focus. Enjoy audio narration and track your progress as you master new information.

**Highlights:** AI-generated quizzes and summaries, Memory-building challenges, Spaced repetition learning, Gamified reinforcement, Distraction blocker, Audio narration, Progress tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Memrbl Premium | $2.99 | per 7 days |
| Unlimited Monthly | $14.99 | per month |
| Unlimited Yearly Access | $89.99 | per year |


### Underlined

[App page](https://appshunter.io/ios/app/underlined-bookshelf-tracker/id6805132642)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Underlined - Monthly | $2.99 | per month |
| Underlined - Yearly | $19.99 | per year |


## Frequently asked questions

### Is Memrbl free?

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

### Is Underlined free?

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

### Do Memrbl or Underlined have ads?

Neither Memrbl nor Underlined shows ads.

### Which is updated more often, Memrbl or Underlined?

Memrbl ships an update every 10 days, and Underlined fortnightly. Most recently, Memrbl was updated on October 16, 2026 and Underlined on October 25, 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.*