# Molecule World vs Cardify

The clearest difference is in-app purchases: Molecule World at none against Cardify's 3. Molecule World also leads on review sentiment (100% vs 88%). Cardify's advantage is update cadence (every 10 days vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Cardify sells 3 in-app purchases, starting at $9.99 per 7 days. Molecule World asks for nothing beyond the download.

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 11 respectively. Written reviews are what separate them: 100% of Molecule World's written reviews are positive against 88% of Cardify's.

Molecule World ships an update every 2 months, Cardify every 10 days. The most recent releases landed on September 20, 2026 and September 25, 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 (11 ratings)](https://appshunter.io/ios/app/cardify-mistake-scan/id6757803003/reviews) |
| Number of ratings | 4 | **11** |
| Positive reviews | **100.0% of reviews** | 87.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Paid | **Freemium** |
| Size | 8 MB | 11 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

**In-app purchases:** none


### Cardify

[App page](https://appshunter.io/ios/app/cardify-mistake-scan/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 (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Yearly | $99.99 | per year |
| Lifetime | $199.99 | one-time |


## Frequently asked questions

### Is Molecule World free?

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

### 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 11 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 10 days. Most recently, Molecule World was updated on September 20, 2026 and Cardify on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*