# tec2SKILL Smart Maintenance vs Opamp tools

The clearest difference is in-app purchases: tec2SKILL Smart Maintenance at none against Opamp tools's 1. Opamp tools's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Opamp tools sells 1 one-off in-app purchase. tec2SKILL Smart Maintenance asks for nothing beyond the download.

tec2SKILL Smart Maintenance ships an update every 8 months, Opamp tools every 12 months. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | tec2SKILL Smart Maintenance | Opamp tools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 12 months |
| Size | 524 MB | 4 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ETS DIDACTIC GMBH](https://appshunter.io/developer/1209946511) | [Siu Yuen Ho](https://appshunter.io/developer/814088527) |

## What reviewers say

### tec2SKILL Smart Maintenance

[App page](https://appshunter.io/ios/app/tec2skill-smart-maintenance/id1542007569)

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

**In-app purchases:** none


### Opamp tools

[App page](https://appshunter.io/ios/app/opamp-tools/id1616271826)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock pro feature | $1.99 | one-time |


## Frequently asked questions

### Is tec2SKILL Smart Maintenance free?

tec2SKILL Smart Maintenance is free to download, with no in-app purchases.

### Is Opamp tools free?

Opamp tools is free to download, with in-app purchases available.

### Do tec2SKILL Smart Maintenance or Opamp tools have ads?

Neither tec2SKILL Smart Maintenance nor Opamp tools shows ads.

### Which is updated more often, tec2SKILL Smart Maintenance or Opamp tools?

tec2SKILL Smart Maintenance ships an update every 8 months, and Opamp tools every 12 months. Most recently, tec2SKILL Smart Maintenance was updated on October 9, 2026 and Opamp tools 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.*