# Techno System vs CriterApp

The clearest difference is review sentiment: Techno System at 100% against CriterApp's 0%. CriterApp's advantage is update cadence (every 6 weeks vs every 19 months) and iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Techno System ships an update every 19 months, CriterApp every 6 weeks. The most recent releases landed on September 23, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Techno System | CriterApp |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 10 MB | 114 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TNX srl](https://appshunter.io/developer/460967609) | [Regione Emilia-Romagna](https://appshunter.io/developer/512982992) |

## What reviewers say

### Techno System

[App page](https://appshunter.io/ios/app/techno-system/id1083928221)

This application assists users in identifying suitable plate heat exchangers for standard civilian uses. It also facilitates contact with technical support for industrial applications and helps locate nearby suppliers. Additional features include a unit converter and a comparison tool for exchangers.

**Highlights:** Identify heat exchangers for civilian applications, Contact tech support for industrial applications, Find closest supplier, Technical measurement unit conversion, Compare Techno System exchangers

**Features:** macOS Compatibility

**In-app purchases:** none


### CriterApp

[App page](https://appshunter.io/ios/app/criterapp/id1515687432)

Access cadastral data for the Emilia-Romagna region. This mobile tool allows users to interface with the regional land registry, providing access to important property information.

**Highlights:** Cadastral data access, Emilia-Romagna region specific, Land registry interface, Property information retrieval

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Techno System free?

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

### Is CriterApp free?

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

### Do Techno System or CriterApp have ads?

Neither Techno System nor CriterApp shows ads.

### Which is updated more often, Techno System or CriterApp?

Techno System ships an update every 19 months, and CriterApp every 6 weeks. Most recently, Techno System was updated on September 23, 2026 and CriterApp on September 28, 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.*