Thetis Authenticator vs Sfolty
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thetis Authenticator
Manage your FIDO2 security keys for passwordless login and two-factor authentication. Supports NFC and Type-C connections for seamless integration across devices. Offers one-time password management for services not yet supporting FIDO2.
- FIDO2 passwordless login
- Enhanced two-factor authentication
- One-time password management
- Optimized for iPad
- NFC and Type-C compatibility
- Cross-platform support
- Phishing-resistant authentication
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The Thetis Authenticator App provides seamless management of your FIDO2 security keys, enabling passwordless login, two-factor authentication (2FA), and one-time password (OTP) management. Fully optimized for iPhone and iPad, the app supports NFC and Type-C connections, ensuring compatibility across all your devices. With full support for the FIDO2 security standards, Thetis Authenticator empowers you with fast and phishing-resistant authentication. Whether managing business or personal accounts, you can easily integrate Thetis FIDO2 into your daily workflow. Key Features: ●. FIDO2 Passwordless Login: Replace passwords with strong, FIDO2-based authentication for secure access across platforms. ●. Enhanced 2FA: Strengthen your account security with FIDO2-based two-factor authentication for supported services. ●. Complete OTP Management: Add and manage one-time passwords (OTP) for services that don’t support FIDO2. ●. Optimized for iPad: Manage your keys with ease on a larger screen, with full iPad optimization. ●. NFC and Type-C Compatibility: Effortlessly connect using NFC or Type-C for fast key setup. ●. Cross-Platform Support: Use Thetis FIDO2 for services like Google, Dropbox, Microsoft, AWS, and more. ●. Phishing-Resistant Authentication: Built on the FIDO2 standard, ensuring your accounts are protected. Simplify your security and manage your digital identity with ease using Thetis FIDO2.
Sfolty
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Your photo library is full of near-identical shots - burst photos, retakes, "just one more" pictures - quietly eating up your storage. Sfolty finds them for you and makes cleaning up effortless. HOW IT WORKS Sfolty scans your photo library right on your device and groups together photos that look almost the same. Then it shows you two photos at a time, side by side: swipe left or right to pick a winner, tap "Keep both" if they're actually different, or "Delete both" if you don't want either. It's fast, intuitive, and a little bit satisfying. Not sure which one is better? Tap to zoom in full-screen with pinch-to-zoom, see the similarity percentage, and view a highlighted overlay showing exactly where the two photos differ. NOTHING IS DELETED BY ACCIDENT Every choice you make is just a plan until you confirm it. Before anything is removed, you'll see a full summary of what's about to be discarded, and you can restore any photo you change your mind about. Once confirmed, photos are moved to your device's trash/recently deleted, following your system's normal recovery rules - so you're always covered. KEY FEATURES Smart duplicate detection using perceptual image comparison, not just file names or dates Adjustable sensitivity (Low, Medium, High) Background scanning that keeps the app responsive - browse results as they come in Pull to refresh and rescan whenever you like Remembers photos you've already reviewed, so you never see the same pair twice Customizable comparison layout - side by side or stacked A clear "space you could free up" estimate before you even start YOUR PHOTOS STAY YOURS Sfolty works entirely on your device. Your photos are never uploaded anywhere - all scanning and comparison happens locally, privately, on your phone. FREE TO USE Sfolty is free, supported by occasional ads between review sessions. If you'd rather use the app without them, a simple one-time purchase removes ads for good - no subscriptions, ever. Stop scrolling past duplicate after duplicate. Let Sfolty do the sorting - you just swipe.
Screenshots
Verdict
The clearest difference is in-app purchases: Thetis Authenticator at none against Sfolty's 1. Thetis Authenticator also leads on iOS requirement (13.0 vs 15.0). On price, ads and device support 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. Sfolty sells 1 one-off in-app purchase. Thetis Authenticator asks for nothing beyond the download.
| Parameter | Thetis Authenticator | Sfolty |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 9 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Razzo Tech Corporation | Luca Napoletano |
In-app purchases
Thetis Authenticator
No in-app purchases
Sfolty
- Remove Ads$2.99
Questions
Is Thetis Authenticator free?
Is Sfolty free?
Do Thetis Authenticator or Sfolty have ads?
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