# Biomolecules vs Heterocycles

The clearest difference is in-app purchases: Biomolecules at none against Heterocycles's 1. Biomolecules also leads on update cadence (monthly vs every 11 months). Heterocycles's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Heterocycles sells 1 one-off in-app purchase. Biomolecules asks for nothing beyond the download.

Biomolecules ships an update monthly, Heterocycles every 11 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Biomolecules | Heterocycles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/heterocycles/id6445909269/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | — | Free with in-app purchases |
| Size | 173 MB | 17 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carolina Biological Supply](https://appshunter.io/developer/413708533) | [Clarity Applications](https://appshunter.io/developer/1646120472) |

## What reviewers say

### Biomolecules

[App page](https://appshunter.io/ios/app/biomolecules-macromolecules/id1626457869)

**Features:** Vision Pro support

**In-app purchases:** none


### Heterocycles

[App page](https://appshunter.io/ios/app/heterocycles/id6445909269)

Master the names and applications of organic chemistry's heterocycles. This interactive app covers over 75 compounds with hundreds of examples and personalized review modes. Track your progress with achievements and learn about their roles in medicine and biology.

**Highlights:** 75+ heterocycles, Hundreds of examples, Multiple practice modes, Personalized review, Reference table, Achievements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is Biomolecules free?

Biomolecules is free to download, with no in-app purchases.

### Is Heterocycles free?

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

### Do Biomolecules or Heterocycles have ads?

Biomolecules shows ads; Heterocycles does not.

### Which is updated more often, Biomolecules or Heterocycles?

Biomolecules ships an update monthly, and Heterocycles every 11 months. Most recently, Biomolecules was updated on November 3, 2026 and Heterocycles on November 3, 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.*