PLC logic vs OTAC auth
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PLC logic
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Use the PLC logic app and the corresponding Bluetooth adapter to quickly and wirelessly access the process data of your logic modules. You can adjust parameters and monitor your application.
OTAC auth
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Experience rapid and secure user/device authentication through OTAC's 8-character code. โ Quick and Easy, No Registration: Streamlined authentication without the hassle of sign-up or login processes. Your privacy is paramount; no personal information required. โ Secure Authentication with OTAC Code: Ensure robust security with time-sensitive OTAC codes. Safely access your accounts using a code that expires after a specific duration. โ Manage Multiple Accounts Easily: Effortlessly authenticate multiple accounts using a single OTAC auth app. Register and manage up to 20 accounts securely.
Screenshots
Verdict
The clearest difference is device support: OTAC auth at 3 against PLC logic's 1. PLC logic's advantage is iOS requirement (8.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PLC logic | OTAC auth |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 8.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 43 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Phoenix Contact GmbH & Co. KG | swIDch Limited |
In-app purchases
PLC logic
No in-app purchases
OTAC auth
No in-app purchases









