# 無機化学 vs GRAPES

The clearest difference is rating: 無機化学 at 5.0 against GRAPES's 3.0. 無機化学 also leads on review sentiment (98% vs 59%) and update cadence (every 2 days vs every 3 months). GRAPES's advantage is iOS requirement (10.0 vs 15.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

無機化学 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 98% of 無機化学's written reviews are positive against 59% of GRAPES's.

無機化学 ships an update every 2 days, GRAPES every 3 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 無機化学 | GRAPES |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id1351078183/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/grapes-light/id1437354864/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **98.1% of reviews** | 58.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Monetization | — | Free |
| Size | 42 MB | 44 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hideki Touhara](https://appshunter.io/developer/1268738829) | [TOKYO SHOSEKI CO.,LTD.](https://appshunter.io/developer/449549534) |

## What reviewers say

### 無機化学

[App page](https://appshunter.io/ios/app/id1351078183)

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

**In-app purchases:** none


### GRAPES

[App page](https://appshunter.io/ios/app/grapes-light/id1437354864)

This educational app allows users to graph mathematical functions and relationships with advanced features. It incorporates dynamic "movement" to enhance learning and includes nearly 150 samples. Optimized for tablets, it offers a streamlined experience for exploring mathematics.

**Highlights:** Graph relations and discontinuous functions, Learn through dynamic 'movement', Tablet-optimized UI, Includes nearly 150 samples, Advanced mathematical functions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 無機化学 free?

無機化学 is free to download, with no in-app purchases.

### Is GRAPES free?

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

### Which has better reviews, 無機化学 or GRAPES?

無機化学 is rated higher. 無機化学 averages 5.0 out of 5 from 2 ratings, while GRAPES averages 3.0 from 1 ratings.

### Do 無機化学 or GRAPES have ads?

Neither 無機化学 nor GRAPES shows ads.

### Which is updated more often, 無機化学 or GRAPES?

無機化学 ships an update every 2 days, and GRAPES every 3 months. Most recently, 無機化学 was updated on November 6, 2026 and GRAPES on November 2, 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.*