Yubico Authenticator vs CRTX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Yubico Authenticator
Secure your online accounts with hardware-backed two-factor authentication. Store unique credentials on a physical security key, eliminating the need to store sensitive data on your mobile device. Generate verification codes without an internet connection for enhanced account protection.
- Hardware-backed security key storage
- Touch or NFC authentication
- USB-C support
- Biometric unlock (FaceID/TouchID)
- QR code setup
- User presence verification
- Smart Card support
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Store your unique credentials on a hardware-backed security key and take it wherever you go from mobile to desktop. No more storing sensitive secrets on your mobile phone, leaving your account vulnerable to takeovers. With the Yubico Authenticator you can raise the bar for security. * The Yubico Authenticator will work with any USB, Lightning, or NFC-enabled YubiKeys. * As iPads do not have NFC, they will only work through a Lightning or USB connection. The Yubico Authenticator generates a code used to verify your identity as you are logging into various services. No connectivity needed! Features include: Touch or NFC Authentication - Touch the YubiKey sensor or simply tap a YubiKey with NFC to a mobile phone that is NFC-enabled to store your credential on the YubiKey USB-C support - Connect the YubiKey 5Ci or any USB-C type YubiKey. When prompted, depending on the key, touch the contacts on the sides of the key or the golden ring on the top Biometric support - Experience greater convenience by unlocking your YubiKey with FaceID or TouchID Easy Setup - QR codes available from the services you wish to protect with strong authentication User Presence - New codes generated with just a touch or NFC tap of the YubiKey Compatible - Secure all the services currently compatible with other Authenticator apps Secure - Hardware-backed strong two-factor authentication with secret stored on the YubiKey, not on the mobile device Versatile - Support for multiple work and personal accounts Portable - Get the same set of codes across our other Yubico Authenticator apps for desktops as well as for all leading mobile platforms Flexible - Support for time-based and counter-based code generation Smart Card - Support for Apple's CryptoTokenKit Extension making it possible to use certificates stored on your YubiKey to authenticate with other apps and sites Experience security the modern way with the Yubico Authenticator. Visit yubico.com to learn more.
CRTX
This app acts as a shared digital memory for your household, allowing you to save voice notes, photos, links, and documents. You can then ask questions in plain English to retrieve information saved by anyone in your group.
- Capture voice notes, photos, links, and PDFs
- Search contents using natural language
- Create private or shared memory pools
- Assign and track tasks within shared pools
- Automatic recognition of people in saved items
- Apple Watch and share extension support
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Your family's memory, one question away. CRTX is the memory you share with the people you live with. Save voice notes, photos, links, PDFs, and audio files. Then ask a question in plain English and get the answer back across everything anyone in your pool has saved. WHAT YOU CAN DO • Capture anything. Type a thought, paste a link, hold to record a voice note, drop a PDF, snap a photo of a flyer or receipt. CRTX reads what's inside, so you can search the contents — not just the filename. • Ask anything. "What did the doctor say?" "Where's the school calendar?" "What did Sarah send about Friday?" CRTX finds it in seconds and shows you the source. • Pool with the people you share a life with. Your personal pool stays private. Shared pools are for the people you're in this with — partner, kids, siblings, your closest friends. • Tasks, on their own or tied to something you saved. Assignable in shared pools. Recurring. Reminders before, at, and after the deadline. • People show up automatically. CRTX recognizes names in what you save and ties items to the right person. Your People tab becomes a living memory of who said what, organized around the people in your life. • Apple Watch + share extension. Record voice notes from your wrist. Save anything from any iPhone app with the share button. WHO IT'S FOR Built first for families. Couples managing the everyday — kids, school, the dentist, the babysitter, the grocery list that lives in three places at once. Parents who keep losing the things their kids told them. Households tired of the same conversation: "I know we wrote that down somewhere." Just as good for any group that shares a life or a project. Friend groups planning a trip across a hundred photos and links. Founders catching customer feedback fragments. Roommates juggling bills and repairs. Or just you on your own — your personal pool is yours alone. CORA Cora is your help assistant inside CRTX. Ask her how a feature works, where to find a setting, or what an option does. She knows the app inside and out — so you don't have to. SUBSCRIPTION Choose Personal for just yourself, or Family for up to 6 people. Both start with a 7-day free trial. Cancel anytime in Settings ▸ Subscription ▸ Manage Subscription inside the app. Either plan includes unlimited capture, AI question-answering, shared pools, Apple Watch, and the share extension. LANGUAGES English, German, French. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://crtx.live/privacy
Screenshots
Verdict
The clearest difference is rating: CRTX at 5.0 against Yubico Authenticator's 3.7. Yubico Authenticator's advantage is in-app purchases (none vs 4) and ratings volume (268 vs 1). 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. CRTX sells 4 in-app purchases, starting at $7.99 per month. Yubico Authenticator asks for nothing beyond the download.
CRTX holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Yubico Authenticator has 268 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Yubico Authenticator | CRTX |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (268 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 43.6% of reviews | — |
| Number of ratings | 268 — better | 1 |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 4 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Yubico | Lars Janssen |
Customer experience
Yubico Authenticator
CRTX
Bugs and requests
Yubico Authenticator
Reported bugs
4 issues- NFC not working reliably
- Accounts disappearing after updates
- Calculation of codes not working
- Keyboard issues when using keys
Requested features
5 requests- Allow editing and rearranging of entries
- Add support for multiple keys per account
- Improve iPad/tablet support
- Add dark mode option
- Improve QR code scanning
CRTX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Yubico Authenticator
No in-app purchases
CRTX
- CRTX Personal Monthly7 Days trial$7.991 Month
- CRTX Family Monthly7 Days trial$12.991 Month
- CRTX Personal Annual7 Days trial$69.991 Year
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- CRTX Family Annual7 Days trial$119.991 Year
Questions
Is Yubico Authenticator free?
Is CRTX free?
Which has better reviews, Yubico Authenticator or CRTX?
Do Yubico Authenticator or CRTX have ads?
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