art.StrongID vs HDI Authenticator
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
art.StrongID
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art.StrongID enables a simple touch or biometric authentication via PUSH, and supports OTP multi-factor authentication services for general websites. 1. Touch or biometric authentication is possible through multi-factor authentication registration. - Enter the authentication information ID and authentication code generated by art.StrongID app in art.StrongID multi-factor authentication page. - When logging in through registered service, you can use touch or biometric authentication via PUSH notification. 2. Generate a 2-step verification OTP code for general websites such as Google, Github, and Facebook through QR Scan. - When adding website multi-factor authentication, you can register a website OTP service by selecting the QR code or registration key. - art.StrongID can generate OTP codes for the website and manage as a list. - Enter 2-step verification for the website by entering the OTP code generated by the app. art.StrongID app requires iOS 11.0 or later.
HDI Authenticator
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Screenshots
Verdict
art.StrongID and HDI Authenticator are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
art.StrongID ships an update every 7 months, HDI Authenticator every 4 months. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.
| Parameter | art.StrongID | HDI Authenticator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 7 months | Every 4 months β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details β not scored | ||
| Size | 13 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Feelanet Co., Ltd. | KOREAEXPERT |
In-app purchases
art.StrongID
No in-app purchases
HDI Authenticator
No in-app purchases
Questions
Is art.StrongID free?
Is HDI Authenticator free?
Do art.StrongID or HDI Authenticator have ads?
Which is updated more often, art.StrongID or HDI Authenticator?
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