# Hoepli Test Ingegneria vs Problem solver

The clearest difference is ads: Hoepli Test Ingegneria at none against Problem solver's shown. Problem solver's advantage is iOS requirement (8.0 vs 11.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Hoepli Test Ingegneria ships an update every 9 months, Problem solver every 6 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Hoepli Test Ingegneria | Problem solver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 6 months** |
| Size | 279 MB | 10 MB |
| Requires iOS | 11.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edigeo S.r.l.](https://appshunter.io/developer/437235489) | [Fabio Giuliani](https://appshunter.io/developer/1333671865) |

## What reviewers say

### Hoepli Test Ingegneria

[App page](https://appshunter.io/ios/app/hoepli-test-ingegneria/id858642061)

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

**In-app purchases:** none


### Problem solver

[App page](https://appshunter.io/ios/app/problem-solver-mechanics/id1435700320)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hoepli Test Ingegneria free?

Hoepli Test Ingegneria is free to download, with no in-app purchases.

### Is Problem solver free?

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

### Do Hoepli Test Ingegneria or Problem solver have ads?

Problem solver shows ads; Hoepli Test Ingegneria does not.

### Which is updated more often, Hoepli Test Ingegneria or Problem solver?

Hoepli Test Ingegneria ships an update every 9 months, and Problem solver every 6 months. Most recently, Hoepli Test Ingegneria was updated on October 5, 2026 and Problem solver on October 4, 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.*