# Polym vs ExoMind External Memory

The clearest difference is in-app purchases: ExoMind External Memory at none against Polym's 7. ExoMind External Memory also leads on ads (none vs shown) and update cadence (every 2 days vs every 9 days). On price and iOS requirement there is nothing between them.

Both are free to download. Polym sells 7 in-app purchases, starting at $7.99 per month. ExoMind External Memory asks for nothing beyond the download.

Polym ships an update every 9 days, ExoMind External Memory every 2 days. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Polym | ExoMind External Memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (39 ratings)](https://appshunter.io/ios/app/polym-learn-and-remember/id6737438526/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 66 MB | 34 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Polym App LLC](https://appshunter.io/developer/1776382285) | [AGENTUR CLICK LLC](https://appshunter.io/developer/6791132169) |

## What reviewers say

### Polym

[App page](https://appshunter.io/ios/app/polym-learn-and-remember/id6737438526)

Enhance your memory and recall with audio-first lessons and active learning techniques. Explore a wide range of subjects through engaging courses, flashcards, and integrated memory training. Learn effectively anytime, anywhere with this distraction-free educational tool.

**Highlights:** Audio-first lessons for on-the-go learning, Active audio learning with flashcards, Spaced repetition and interleaving techniques, Expansive course catalog across various subjects, Progress tracking and due date reminders, Distraction-free learning interface

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Access | $7.99 | per month |
| Standard Access | $9.99 | per month |
| Standard Access | $11.99 | per month |
| Standard Access | $14.99 | per 3 months |
| Standard Access | $19.99 | per 3 months |
| Standard Access | $29.99 | per 3 months |
| Standard Access | $79.99 | per year |


### ExoMind External Memory

[App page](https://appshunter.io/ios/app/exomind-external-memory/id6791132167)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Polym free?

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

### Is ExoMind External Memory free?

ExoMind External Memory is free to download, with no in-app purchases.

### Do Polym or ExoMind External Memory have ads?

Polym shows ads; ExoMind External Memory does not.

### Which is updated more often, Polym or ExoMind External Memory?

Polym ships an update every 9 days, and ExoMind External Memory every 2 days. Most recently, Polym was updated on November 12, 2026 and ExoMind External Memory 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.*