felix mobile vs U2 Secured Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
felix mobile
Get affordable, carbon-neutral mobile plans with no lock-in contracts. This app allows you to easily sign up, manage your plan, track data usage, and contribute to environmental initiatives by planting trees with every month of service.
- Sign up for mobile plans
- Activate with eSIM
- Track data usage
- Add international roaming
- Live chat support
- Track planted trees
- Donate excess data
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Incredible value mobile plans from $30/month, no lock-in contracts and one tree planted for every month you're with us. felix - Mobile that's not all talk. Join the felix community and help us reach our goal of planting 10 million trees. Together, we're helping create a healthier, more sustainable world, one tree at a time. To support this mission, we partner with veritree, who help plant and verify every tree funded through felix mobile. We also match our operations with 100% renewable electricity and are proudly certified carbon neutral. Download the felix mobile app to: - Sign up and choose your preferred plan - Activate with an eSIM to switch in minutes - If needed, order a physical SIM card with free express delivery - Track your data usage - Add International Roaming or Unlimited International Standard Calls & Texts - Get local support through live chat - Check how many trees you've planted and watch your forest grow - Put excess data to good use by donating data to plant an extra tree - Share your referral code with friends and get some credit in your felix wallet when they activate their SIM - Upgrade or downgrade your plan - Purchase an extra data pack - Pause or cancel your plan More at felixmobile.com.au Terms and conditions apply.
U2 Secured Authenticator
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U2 Secured Authenticator replaces the six-digit code with a single tap. TAP TO APPROVE For services built on U2 Secured, signing in sends a prompt straight to your phone. The prompt shows you who is asking, from which browser, and roughly where the attempt came from — then asks you to pick the matching number from three. A prompt you did not trigger looks wrong immediately, and an approval cannot be granted by reflex. Every approval is confirmed with Face ID, Touch ID or your passcode before it is sent. TWO-FACTOR CODES THAT WORK ANYWHERE Standard RFC 6238 codes for any service that offers "authenticator app" two-factor. Add an account by scanning its QR code or typing the setup key. Codes are generated on your device, so they keep working on a plane, in a subway, or with no signal at all. SWITCH IN ONE SCAN Moving from Google Authenticator? Export your accounts there and scan the code: every account comes across in one tap, and any you already have are skipped. Coming from an app with no export, the app shows how to move each account. PASSKEYS Create and store passkeys in the app, and offer them to apps and websites through AutoFill once U2 Secured is enabled in Settings › General › AutoFill & Passwords. BUILT SO WE CANNOT READ YOUR SECRETS Your codes are encrypted on your device before anything leaves it. We store ciphertext and never hold the key, so we cannot read your codes even if we wanted to. Unlocking the app needs your face, fingerprint or passcode. PREMIUM — ENCRYPTED BACKUP An optional annual subscription adds encrypted cloud backup for up to 1,000 items, so you can restore everything onto a new phone instead of losing it with the old one. The backup is encrypted with a key derived from your password; a recovery key is issued at setup for the case where you forget it. Your account lives on one phone at a time. Moving to a new device restores from your backup and retires the old one, which erases its copy — so there is only ever one place your secrets exist. Everything else is free and stays free: codes, tap-to-approve, biometric lock, passkeys and offline use. PRIVACY We collect what the service needs to work and nothing to track you. Location is optional and used only to show you where a sign-in was approved from; approvals work normally if you decline it. Privacy Policy: https://auth.u2secured.com/privacy Terms of Use: https://auth.u2secured.com/terms
Screenshots
Verdict
The clearest difference is in-app purchases: felix mobile at none against U2 Secured Authenticator's 1. U2 Secured Authenticator's advantage is update cadence (every 5 days vs monthly). On price, ads, device support and iOS requirement 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. U2 Secured Authenticator sells 1 in-app purchase, starting at $14.99 per year. felix mobile asks for nothing beyond the download.
felix mobile ships an update monthly, U2 Secured Authenticator every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | felix mobile | U2 Secured Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (42 ratings) — better | — |
| Positive reviews | 49.8% of reviews | — |
| Number of ratings | 42 — better | — |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 60 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Vodafone Hutchison Australia | DOLLAR MATES PROPRIETARY LIMITED |
Bugs and requests
felix mobile
Reported bugs
3 issues- Frequent app crashes and login problems
- Billing and payment processing errors
- Difficulties with eSIM activation and number porting
Requested features
3 requests- Ability to manage multiple accounts (e.g., family plan)
- Expansion of network coverage, especially in regional areas
- Improved customer support channels (phone, live chat)
U2 Secured Authenticator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
felix mobile
No in-app purchases
U2 Secured Authenticator
- Premium7 Days trial$14.991 Year







