# Underline vs MemorAI

The clearest difference is in-app purchases: Underline at none against MemorAI's 3. Underline also leads on iOS requirement (10.0 vs 13.0). MemorAI's advantage is update cadence (fortnightly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. MemorAI sells 3 in-app purchases, starting at $7.99 per month. Underline asks for nothing beyond the download.

Underline ships an update every 2 months, MemorAI fortnightly. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Underline | MemorAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 40 MB | 80 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Damian Skoneczny](https://appshunter.io/developer/1571773061) | [Konrad Olszewski](https://appshunter.io/developer/1673079217) |

## What reviewers say

### Underline

[App page](https://appshunter.io/ios/app/underline-language-learning/id1571773059)

**Features:** macOS Compatibility

**In-app purchases:** none


### MemorAI

[App page](https://appshunter.io/ios/app/memorai-ai-language-lessons/id6478309204)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $7.99 | per month |
| Teacher (up to 10 students) | $29.99 | per month |
| Teacher (up to 50 students) | $69.99 | per month |


## Frequently asked questions

### Is Underline free?

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

### Is MemorAI free?

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

### Do Underline or MemorAI have ads?

Neither Underline nor MemorAI shows ads.

### Which is updated more often, Underline or MemorAI?

Underline ships an update every 2 months, and MemorAI fortnightly. Most recently, Underline was updated on October 11, 2026 and MemorAI 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.*