# POLY vs Memo AI

The clearest difference is in-app purchases: POLY at none against Memo AI's 4. Memo AI's advantage is update cadence (every 4 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Memo AI sells 4 in-app purchases, starting at $8.99 per month. POLY asks for nothing beyond the download.

POLY ships an update every 2 months, Memo AI every 4 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | POLY | Memo AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/memo-ai-flashcards-and-notes/id6760988378/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 54 MB | 93 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Hong Kong Polytechnic University](https://appshunter.io/developer/442903588) | [XonLabs Limited](https://appshunter.io/developer/1771282424) |

## What reviewers say

### POLY

[App page](https://appshunter.io/ios/app/polyuway/id1437595452)

**In-app purchases:** none


### Memo AI

[App page](https://appshunter.io/ios/app/memo-ai-flashcards-and-notes/id6760988378)

This AI-powered study tool transforms PDFs, videos, websites, and notes into flashcards, study guides, and practice tests. It allows users to chat with their documents for grounded answers and review material using active recall and spaced repetition.

**Highlights:** AI-powered flashcard and note generation, Chat with documents for grounded answers, AI tutoring and practice tests, Active recall and spaced repetition review, Cross-device syncing, Supports PDFs, videos, websites, and notes

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monhtly | $8.99 | per month |
| Max Monthly | $17.99 | per month |
| Pro Yearly | $85.99 | per year |
| Max Yearly | $169.99 | per year |


## Frequently asked questions

### Is POLY free?

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

### Is Memo AI free?

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

### Do POLY or Memo AI have ads?

Neither POLY nor Memo AI shows ads.

### Which is updated more often, POLY or Memo AI?

POLY ships an update every 2 months, and Memo AI every 4 days. Most recently, POLY was updated on October 25, 2026 and Memo AI on October 28, 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.*