# Molecule World vs Cardify

The clearest difference is update cadence: Cardify at every 2 weeks against Molecule World's every 2 months. Cardify also leads on monetization model (freemium vs paid) and ratings volume (12 vs 4). Molecule World's advantage is review sentiment (100% vs 89%). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Molecule World sells 1 one-off in-app purchase and Cardify sells 7 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Molecule World against 5.0 for Cardify. Both are backed by a comparable volume of ratings — 4 and 12 respectively. Written reviews are what separate them: 100% of Molecule World's written reviews are positive against 89% of Cardify's.

Molecule World ships an update every 2 months, Cardify every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Molecule World | Cardify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/molecule-world/id863565223/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/cardify-ai-homework-helper/id6757803003/reviews) |
| Number of ratings | 4 | **12** |
| Positive reviews | **100.0% of reviews** | 88.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 16 MB | 13 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Digital World Biology LLC](https://appshunter.io/developer/863565226) | [Beijing Huishuo Mobile Technology Co.,Ltd.](https://appshunter.io/developer/1854274465) |

## What reviewers say

### Molecule World

[App page](https://appshunter.io/ios/app/molecule-world/id863565223)

Explore interactive 3D models of molecules, proteins, and DNA. This educational tool allows users to manipulate structures, experiment with visualization styles, and learn about chemical properties. Ideal for students and science enthusiasts of all ages.

**Highlights:** Interactive 3D molecule manipulation, Experiment with drawing and coloring styles, View and control molecular sequences (protein, DNA, RNA), Identify elements and investigate molecular properties, Capture images of molecular structures, Explore themed collections of molecules

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Molecule World Pro | $29.99 | one-time |


### Cardify

[App page](https://appshunter.io/ios/app/cardify-ai-homework-helper/id6757803003)

This app uses AI to help students and parents organize incorrect answers and knowledge points. Simply take a photo or select an image from your album, confirm the question's scope, and the app will create a clear record for review and tracking.

**Highlights:** Photo and album import of incorrect answers, AI-powered question scope confirmation, Detailed review of answers and solutions, Original photo retention, Organization by date, subject, and knowledge point, Analysis of weak subjects and knowledge points

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Monthly Pro | $19.99 | per month |
| Yearly | $99.99 | per year |
| 100 Credits | $1.99 | one-time |
| 300 Credits | $4.99 | one-time |
| 500 Credits | $7.99 | one-time |
| Lifetime | $199.99 | one-time |


## Frequently asked questions

### Is Molecule World free?

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

### Is Cardify free?

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

### Which has better reviews, Molecule World or Cardify?

Molecule World and Cardify are both rated 5.0 out of 5 on the App Store, from 4 and 12 ratings respectively.

### Do Molecule World or Cardify have ads?

Neither Molecule World nor Cardify shows ads.

### Which is updated more often, Molecule World or Cardify?

Molecule World ships an update every 2 months, and Cardify every 2 weeks. Most recently, Molecule World was updated on October 24, 2026 and Cardify on October 28, 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.*