# Chemistry Pro vs BiasProof

The clearest difference is rating: BiasProof at 5.0 against Chemistry Pro's 4.3. BiasProof also leads on ads (none vs shown). Chemistry Pro's advantage is ratings volume (8 vs 2) and iOS requirement (12.0 vs 17.6). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Chemistry Pro sells 5 in-app purchases, starting at $4.99 per 7 days and BiasProof sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

BiasProof holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Chemistry Pro | BiasProof |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (8 ratings)](https://appshunter.io/ios/app/chemistry-pro/id1588453081/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/biasproof/id6756802032/reviews)** |
| Number of ratings | **8** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 40 MB | 10 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ali Umer](https://appshunter.io/developer/1584417594) | [Justin Neuman](https://appshunter.io/developer/1859103444) |

## What reviewers say

### Chemistry Pro

[App page](https://appshunter.io/ios/app/chemistry-pro/id1588453081)

Learn chemistry from basic to advanced topics with offline access. This app offers hundreds of lessons in English, covering chemistry in everyday life. Unlock premium features and advanced lessons through in-app purchases or subscriptions.

**Highlights:** Hundreds of chemistry topics, Offline access, Learn from basics to advanced, Chemistry in life lessons, Review mode, In-app purchases for premium content

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chemistry | $4.99 | per 7 days |
| Chemistry | $6.99 | per month |
| Chemistry | $29.99 | per year |
| Chemistry | $2.99 | one-time |
| Chemistry | $49.99 | one-time |


### BiasProof

[App page](https://appshunter.io/ios/app/biasproof/id6756802032)

This app gamifies cognitive bias training by presenting realistic scenarios to help users identify and resist emotional traps, cognitive errors, and modern scams. It aims to build measurable resistance to thinking pitfalls that affect decisions, relationships, and finances.

**Highlights:** Gamified mental calibration, Realistic scenario simulations, Identification of emotional traps and scams, Measurable resistance tracking, Progress tracking and leaderboards, Daily habit building

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BiasProof Pro - LIfetime Access | $4.99 | one-time |


## Frequently asked questions

### Is Chemistry Pro free?

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

### Is BiasProof free?

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

### Which has better reviews, Chemistry Pro or BiasProof?

BiasProof is rated higher. Chemistry Pro averages 4.3 out of 5 from 8 ratings, while BiasProof averages 5.0 from 2 ratings.

### Do Chemistry Pro or BiasProof have ads?

Chemistry Pro shows ads; BiasProof does not.

### Which is updated more often, Chemistry Pro or BiasProof?

Chemistry Pro ships an update every 2 months, and BiasProof every 2 months. Most recently, Chemistry Pro was updated on October 30, 2026 and BiasProof on October 24, 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.*