# Classifindex vs WSS

Classifindex and WSS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Classifindex ships an update every 19 months, WSS every 27 months. Both last shipped on September 17, 2026.

## The numbers

| Metric | Classifindex | WSS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 19 months** | Every 27 months |
| Size | 68 MB | 17 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CNRS Prévention du risque chimique](https://appshunter.io/developer/892400333) | [Atlas Tech Solutions](https://appshunter.io/developer/1471358794) |

## What reviewers say

### Classifindex

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

**Features:** macOS Compatibility

**In-app purchases:** none


### WSS

[App page](https://appshunter.io/ios/app/wss/id1471358795)

**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 WSS free?

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

### Do Classifindex or WSS have ads?

Neither Classifindex nor WSS shows ads.

### Which is updated more often, Classifindex or WSS?

Classifindex ships an update every 19 months, and WSS every 27 months. Most recently, Classifindex was updated on September 17, 2026 and WSS on September 17, 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.*