# Polym vs 24

The clearest difference is price: Polym at Free against 24's $2.99. Polym also leads on ratings volume (36 vs 2) and iOS requirement (16.4 vs 18.5). 24's advantage is in-app purchases (none vs 7) and ads (none vs shown). On device support there is nothing between them.

Polym is free to download; 24 costs $2.99 up front. Polym sells 7 in-app purchases, starting at $7.99 per month. 24 asks for nothing beyond the download.

24 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 2, so its average is the more settled of the two.

## The numbers

| Metric | Polym | 24 |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.6 (36 ratings)](https://appshunter.io/ios/app/polym-learn-and-remember/id6737438526/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/24-hour-time-calculator/id6748953014/reviews)** |
| Number of ratings | **36** | 2 |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | — |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 66 MB | 0 MB |
| Requires iOS | **16.4** | 18.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Polym App LLC](https://appshunter.io/developer/1776382285) | [Richard Montoya](https://appshunter.io/developer/1762752434) |

## 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 |


### 24

[App page](https://appshunter.io/ios/app/24-hour-time-calculator/id6748953014)

Effortlessly add, subtract, and calculate time differences using 24-hour (military) time. Designed for professionals managing schedules and logs, it offers automatic clock wrapping and a persistent time feature for convenience.

**Highlights:** Add/subtract 24-hour time, Calculate time differences, Persistent time feature, Automatic clock wrapping, Simple, modern interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Polym free?

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

### Is 24 free?

24 costs $2.99, with no in-app purchases.

### Which has better reviews, Polym or 24?

24 is rated higher. Polym averages 4.6 out of 5 from 36 ratings, while 24 averages 5.0 from 2 ratings.

### Do Polym or 24 have ads?

Polym shows ads; 24 does not.

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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.*