# Techno Series vs CSEWhy

The clearest difference is device support: CSEWhy at 2 against Techno Series's —. Techno Series's advantage is iOS requirement (11.0 vs 16.6). On price 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.

## The numbers

| Metric | Techno Series | CSEWhy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Monthly |
| Size | 42 MB | 55 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Shree Ram Ventures](https://appshunter.io/developer/1491441979) | [Sivnath Halder](https://appshunter.io/developer/1775412421) |

## What reviewers say

### Techno Series

[App page](https://appshunter.io/ios/app/techno-series/id6462999450)

**In-app purchases:** none


### CSEWhy

[App page](https://appshunter.io/ios/app/csewhy/id6737231064)

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

**In-app purchases:** none


## Frequently asked questions

### Is Techno Series free?

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

### Is CSEWhy free?

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

---

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