# Sasu vs MolViewApp

The clearest difference is in-app purchases: MolViewApp at none against Sasu's 2. MolViewApp also leads on ads (none vs shown) and update cadence (every 2 days vs every 10 days). On price, rating, ratings volume and monetization model there is nothing between them.

Both are free to download. Sasu sells 2 in-app purchases, starting at $6.99 per month. MolViewApp asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Sasu against 5.0 for MolViewApp. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Sasu ships an update every 10 days, MolViewApp every 2 days. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Sasu | MolViewApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/sasu/id6758995077/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/molviewapp/id6786979305/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 2 days** |
| Monetization | Free | Free |
| Size | 75 MB | 29 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chokolad Private Limited](https://appshunter.io/developer/1644925347) | [Donghan Lee](https://appshunter.io/developer/1820113725) |

## What reviewers say

### Sasu

[App page](https://appshunter.io/ios/app/sasu/id6758995077)

This app helps children aged 2-8 develop empathy, values, and critical thinking through interactive stories and guided questions. It transforms passive screen time into meaningful conversations for families and schools.

**Highlights:** Interactive stories for dialogue, Guided questions for reflection, Developmentally adapted experiences, Structured moments for connection, Empathy and emotional awareness, Critical thinking and independent judgment, Responsibility and values formation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sasu Plus Monthly | $6.99 | per month |
| Sasu Plus Yearly | $59.99 | per year |


### MolViewApp

[App page](https://appshunter.io/ios/app/molviewapp/id6786979305)

Explore 3D molecular structures with interactive visualizations. Load PDB files locally or by ID and utilize various display modes and advanced features like electrostatic potential mapping and structural alignment. All processing is done on-device for privacy.

**Highlights:** Load PDB files locally or by ID, Multiple structure loading and visibility control, Surface electrostatic potential map, Structural alignment and superposition, Secondary structure coloring, Morphing between conformations

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

**In-app purchases:** none


## Frequently asked questions

### Is Sasu free?

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

### Is MolViewApp free?

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

### Which has better reviews, Sasu or MolViewApp?

Sasu and MolViewApp are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Sasu or MolViewApp have ads?

Sasu shows ads; MolViewApp does not.

### Which is updated more often, Sasu or MolViewApp?

Sasu ships an update every 10 days, and MolViewApp every 2 days. Most recently, Sasu was updated on October 2, 2026 and MolViewApp on September 25, 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.*