# Fasih AI vs Underlined

The clearest difference is ads: Underlined at none against Fasih AI's shown. Fasih AI's advantage is update cadence (every 5 days vs fortnightly) and iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Fasih AI sells 5 in-app purchases, starting at $5.99 per month 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.

Fasih AI ships an update every 5 days, Underlined fortnightly. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Fasih AI | Underlined |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 70 MB | 24 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [CNTXT - FZCO](https://appshunter.io/developer/1831489944) | [Mert Arman](https://appshunter.io/developer/6795348333) |

## What reviewers say

### Fasih AI

[App page](https://appshunter.io/ios/app/fasih-ai/id6770509116)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fasih Pro Monthly | $5.99 | per month |
| Fasih Pro Annual | $49.99 | per year |
| Unlock Audiobook | $4.99 | one-time |
| 10 Extra Listening Hours | $9.99 | one-time |
| 20 Extra Listening Hours | $15.99 | one-time |


### 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 Fasih AI free?

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

### Is Underlined free?

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

### Do Fasih AI or Underlined have ads?

Fasih AI shows ads; Underlined does not.

### Which is updated more often, Fasih AI or Underlined?

Fasih AI ships an update every 5 days, and Underlined fortnightly. Most recently, Fasih AI was updated on November 5, 2026 and Underlined on November 10, 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.*