AuthYou! vs smartDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AuthYou!
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A dedicated app for authentication only. Passwordless since activation, super easy. Web access through QR code scanning. Web SSO through federated services. Second factor integrated according to TOTP RFC 4226. Password manager as extra feature, both account and password encrypted. Phone Number validation as third channel Detailed info at https://www.authyou.systems/docs/info.php
smartDF
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iPadOS application designed in cooperation between certified developer Carlos Lago and Rhotheta International Inc - www.rhothetaint.com - for the remote control and monitoring of Rhotheta radio direction finders via Bluetooth (BLE) or Wi-Fi. A modern UI for direction finder (DF) products increases crew productivity and enhances mission awareness during search-and-rescue, law enforcement, and special missions. DF sensor data is conveniently displayed over maps with state-of-the-art graphics.
Screenshots
Verdict
The clearest difference is update cadence: smartDF at weekly against AuthYou!'s every 4 weeks. AuthYou!'s advantage is device support (3 vs 1) and iOS requirement (11.0 vs 15.4). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
AuthYou! ships an update every 4 weeks, smartDF weekly. The most recent releases landed on June 5, 2026 and September 9, 2026 respectively.
| Parameter | AuthYou! | smartDF |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 11.0 — better | 15.4 |
| Further details — not scored | ||
| Size | 34 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Giovanni Candotti | Carlos Yordanis Lago Gonzalez |
In-app purchases
AuthYou!
No in-app purchases
smartDF
No in-app purchases
