# ENGEL authentig vs Tvenka Machine Maintenance

The clearest difference is update cadence: ENGEL authentig at every 6 weeks against Tvenka Machine Maintenance's every 20 months. ENGEL authentig also leads on iOS requirement (13.0 vs 16.0). On price, ads, 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.

ENGEL authentig ships an update every 6 weeks, Tvenka Machine Maintenance every 20 months. The most recent releases landed on July 5, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | ENGEL authentig | Tvenka Machine Maintenance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/engel-authentig/id1453976745/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 20 months |
| Monetization | Free | — |
| Size | 41 MB | 181 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ENGEL AUSTRIA GmbH](https://appshunter.io/developer/687631542) | [AugRay](https://appshunter.io/developer/1250287170) |

## What reviewers say

### ENGEL authentig

[App page](https://appshunter.io/ios/app/engel-authentig/id1453976745)

This app provides real-time insights into production status, machine performance, and key metrics like OEE. It helps production managers identify issues early to prevent losses and optimize resource utilization.

**Highlights:** Production status overview, Current order details, Machine status and downtime log, Utilization and cycle time tracking, Quality rate and OEE display, Production event logging

**Features:** macOS Compatibility

**In-app purchases:** none


### Tvenka Machine Maintenance

[App page](https://appshunter.io/ios/app/tvenka-machine-maintenance/id6738463139)

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

**In-app purchases:** none


## Frequently asked questions

### Is ENGEL authentig free?

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

### Is Tvenka Machine Maintenance free?

Tvenka Machine Maintenance is free to download, with no in-app purchases.

### Do ENGEL authentig or Tvenka Machine Maintenance have ads?

Neither ENGEL authentig nor Tvenka Machine Maintenance shows ads.

### Which is updated more often, ENGEL authentig or Tvenka Machine Maintenance?

ENGEL authentig ships an update every 6 weeks, and Tvenka Machine Maintenance every 20 months. Most recently, ENGEL authentig was updated on July 5, 2026 and Tvenka Machine Maintenance on September 19, 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.*