# Classifindex vs NGAP 8

The clearest difference is price: Classifindex at Free against NGAP 8's $8.99. NGAP 8's advantage is update cadence (weekly vs every 19 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Classifindex is free to download; NGAP 8 costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Classifindex ships an update every 19 months, NGAP 8 weekly. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Classifindex | NGAP 8 |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Weekly** |
| Size | 68 MB | 157 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [CNRS Prévention du risque chimique](https://appshunter.io/developer/892400333) | [Michel BORDIEU](https://appshunter.io/developer/1139517655) |

## What reviewers say

### Classifindex

[App page](https://appshunter.io/ios/app/classifindex/id892400330)

**Features:** macOS Compatibility

**In-app purchases:** none


### NGAP 8

[App page](https://appshunter.io/ios/app/ngap-8/id6752337298)

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

**In-app purchases:** none


## Frequently asked questions

### Is Classifindex free?

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

### Is NGAP 8 free?

NGAP 8 costs $8.99, with no in-app purchases.

### Do Classifindex or NGAP 8 have ads?

Neither Classifindex nor NGAP 8 shows ads.

### Which is updated more often, Classifindex or NGAP 8?

Classifindex ships an update every 19 months, and NGAP 8 weekly. Most recently, Classifindex was updated on October 4, 2026 and NGAP 8 on October 10, 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.*