# Polym vs AutoInvent

The clearest difference is review sentiment: AutoInvent at 100% against Polym's 70%. AutoInvent also leads on rating (5.0 vs 4.6). Polym's advantage is ratings volume (36 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Polym sells 7 in-app purchases, starting at $7.99 per month and AutoInvent sells 3 in-app purchases, starting at $39.00 per month. Whichever you choose, the download price is not the number that matters.

AutoInvent holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Polym has 36 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 70% of Polym's written reviews are positive against 100% of AutoInvent's.

Polym ships an update every 9 days, AutoInvent every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Polym | AutoInvent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (36 ratings)](https://appshunter.io/ios/app/polym-learn-and-remember/id6737438526/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/autoinvent-patent-ideas/id6801010063/reviews)** |
| Number of ratings | **36** | 3 |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 66 MB | 70 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Polym App LLC](https://appshunter.io/developer/1776382285) | [AutoInvent, Inc.](https://appshunter.io/developer/6801010065) |

## 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 |


### AutoInvent

[App page](https://appshunter.io/ios/app/autoinvent-patent-ideas/id6801010063)

Discover abandoned patent ideas daily, enhanced by AI to spark your own innovations. Capture, refine, and even draft provisional patent applications to protect your creations.

**Highlights:** Daily abandoned patent discovery, AI-powered invention refinement, Idea capture via voice or text, Provisional patent drafting, Personalized patent feed, 48-hour idea hold

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $39.00 | per month |
| Pro Annual Offer | $239.00 | per year |
| Pro Annual | $300.00 | per year |


## Frequently asked questions

### Is Polym free?

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

### Is AutoInvent free?

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

### Which has better reviews, Polym or AutoInvent?

AutoInvent is rated higher. Polym averages 4.6 out of 5 from 36 ratings, while AutoInvent averages 5.0 from 3 ratings.

### Do Polym or AutoInvent have ads?

Both Polym and AutoInvent show ads.

### Which is updated more often, Polym or AutoInvent?

Polym ships an update every 9 days, and AutoInvent every 5 days. Most recently, Polym was updated on October 25, 2026 and AutoInvent on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*