# Readlax vs Polym

The clearest difference is ads: Readlax at none against Polym's shown. Readlax also leads on review sentiment (95% vs 70%). Polym's advantage is update cadence (every 11 days vs monthly). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Readlax sells 5 in-app purchases, starting at $4.99 per month and Polym sells 7 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Readlax against 4.6 for Polym. Both are backed by a comparable volume of ratings — 50 and 35 respectively. Written reviews are what separate them: 95% of Readlax's written reviews are positive against 70% of Polym's.

Readlax ships an update monthly, Polym every 11 days. The most recent releases landed on August 27, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Readlax | Polym |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (50 ratings)](https://appshunter.io/ios/app/readlax-brain-productivity/id1529149313/reviews) | **[4.6 (35 ratings)](https://appshunter.io/ios/app/polym-learn-and-remember/id6737438526/reviews)** |
| Number of ratings | **50** | 35 |
| Positive reviews | **94.7% of reviews** | 70.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 65 MB | 59 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Readlax, Inc.](https://appshunter.io/developer/1529149315) | [Polym App LLC](https://appshunter.io/developer/1776382285) |

## What reviewers say

### Readlax

[App page](https://appshunter.io/ios/app/readlax-brain-productivity/id1529149313)

Enhance cognitive skills with a suite of tools including memory games, speed reading exercises, and a habit tracker. Improve focus, learn touch typing, and organize knowledge with smart note-taking features.

**Highlights:** Habit tracker, Memory games, Speed reading exercises, Smart note-taking, Focus timer, Touch typing training

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Readlax PRO Monthly | $4.99 | per month |
| $5.99/month Subscription | $5.99 | per month |
| Readlax PRO Monthly | $8.99 | per month |
| Readlax PRO Yearly | $44.99 | per year |
| Readlax for Life, billed once | $199.99 | one-time |

**What reviewers like**

- 👍 User-friendly interface
- 🧠 Effective brain training games
- 💡 Variety of exercises (memory, focus, reading speed)
- 📈 Progress tracking feature
- ✨ Clean and organized layout

**What reviewers complain about**

- ⚠️ Trial period confusion/unexpected charges
- 🤔 Instructions can be confusing sometimes
- 🔄 Repetitive exercises over time
- 💰 Perceived high subscription costs
- 📱 Some users experienced issues with app functionality on iPhone

**Reported bugs**

- Trial period confusion leading to unexpected charges
- Difficulty understanding game stages/instructions
- Visual clarity issues with text/background colors
- Specific game glitches (e.g., Memory Number marking correct answers as incorrect)
- App not working well on iPhone for one user

**Requested features**

- Improve UI for better navigation
- Add more game variety to reduce repetitiveness
- Include a 'How to use the app' section
- Add social media sharing for scores
- Improve visibility of text in certain games


### 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 |


## Frequently asked questions

### Is Readlax free?

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

### Is Polym free?

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

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

Polym is rated higher. Readlax averages 4.6 out of 5 from 50 ratings, while Polym averages 4.6 from 35 ratings.

### Do Readlax or Polym have ads?

Polym shows ads; Readlax does not.

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

Readlax ships an update monthly, and Polym every 11 days. Most recently, Readlax was updated on August 27, 2026 and Polym on September 19, 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.*