Comparison

AEGIS Mobile ShieldONE vs Proton Authenticator & 2FA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AEGIS Mobile ShieldONE

This app provides advanced mobile authentication for personal and enterprise resources. It generates one-time codes and supports biometric unlocking via fingerprint or facial recognition. The app offers a simple self-enrollment process and integrates with various cloud services, security gateways, and VPNs.

Highlights
  • One-time code generation
  • Biometric unlocking (fingerprint/facial recognition)
  • QR code activation
  • Cloud app integration
  • VPN and security gateway support
  • Third-party authenticator integration
Features
Read full description

Aegis Mobile Shield One is a cutting-edge mobile authenticator designed to provide top-tier security for users and enterprise resources. Generate one-time codes with our patented solution and unlock authenticators using fingerprint or facial recognition. Enjoy a quick, easy, and secure self-enrollment process with QR code activation and straightforward instructions. Utilize Aegis Mobile Shield One with leading cloud apps, security gateways, legacy applications, and VPNs. Additionally, integrate third-party authenticators to safeguard both your personal and professional accounts.

About

Proton Authenticator & 2FA

Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

Highlights
  • End-to-end encrypted iCloud sync
  • Effortless import from other authenticators
  • Secure backup and export
  • Swiss privacy by design
  • Open source and transparent
  • Offline support
Features
Read full description

Get the authenticator trusted by millions — from Proton Mail, the world's largest encrypted email provider. Proton Authenticator is open source, end-to-end encrypted, and protected by strict Swiss privacy laws. Protect all your new accounts and strengthen security on your existing ones. Proton Authenticator keeps your 2FA codes secure, accessible, and completely private — with full control over where your data is stored. KEY FEATURES Local-First Storage:Your 2FA codes are stored entirely on your device, giving you complete control over your data. Effortless Import: Migrate from Google Authenticator, Authy, or any other app in seconds. Secure Backup & Export: Retain full control of your data with easy backup and restore options. Swiss Privacy by Design: Built under Switzerland's strongest data protection regulations. Open Source & Transparent: Auditable code. No tracking. No ads. Take control of your digital security with encryption you can trust. Free to use: No Proton account required, ad-free. Offline support: On mobile and desktop apps No other 2FA app provides this combination of security and privacy. Trusted by millions. Built by Proton. Take control of your digital security today. Terms of service: https://proton.me/legal/terms Learn more: https://proton.me

Screenshots

AEGIS Mobile ShieldONE4 screens
Proton Authenticator & 2FA4 screens

Verdict

The call

The clearest difference is review sentiment: Proton Authenticator & 2FA at 58% against AEGIS Mobile ShieldONE's 0%. Proton Authenticator & 2FA also leads on rating (4.4 vs 1.0) and ratings volume (314 vs 1). AEGIS Mobile ShieldONE's advantage is update cadence (daily vs weekly). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Proton Authenticator & 2FA holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Proton Authenticator & 2FA has 314 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of AEGIS Mobile ShieldONE's written reviews are positive against 58% of Proton Authenticator & 2FA's.

UpkeepUpdate frequency

AEGIS Mobile ShieldONE ships an update daily, Proton Authenticator & 2FA weekly. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.

Scorecard5 real differences · 5 level
AEGIS Mobile ShieldONE versus Proton Authenticator & 2FA: the parameters behind the verdict, then further details
ParameterAEGIS Mobile ShieldONEProton Authenticator & 2FA
PriceFreeFree
Rating1.0 (1 ratings)4.4 (314 ratings) — better
Positive reviews0.0% of reviews57.6% of reviews — better
Number of ratings1314 — better
Update frequencyDaily — betterWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS16.0 — better17.0
Further details — not scored
Size86 MB120 MB
Age rating17+4+
DeveloperAEGIS Authentication Technologies LLCProton AG

Customer experience

AEGIS Mobile ShieldONE

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Proton Authenticator & 2FA

All ratings314 ratings
Positive82.8%
Neutral6.7%
Negative10.5%
Written reviews255 reviews
Positive57.6%
Neutral19.2%
Negative23.1%

Bugs and requests

AEGIS Mobile ShieldONE

Not enough reviews yet to summarise bugs or requests.

Proton Authenticator & 2FA

Reported bugs

4 issues
  • Sync/login loop on iPad
  • 2FA input broken on non-iPhone devices
  • Screen strobing on iPad
  • Duplicate entries after import

Requested features

5 requests
  • PIN unlock for desktop
  • Alphabetical sorting option
  • Export function (not just Proton-specific backup)
  • Native macOS app
  • Option to hide item icons

In-app purchases

None

AEGIS Mobile ShieldONE

No in-app purchases

None

Proton Authenticator & 2FA

No in-app purchases

Questions

Is AEGIS Mobile ShieldONE free?
AEGIS Mobile ShieldONE is free to download, with no in-app purchases.
Is Proton Authenticator & 2FA free?
Proton Authenticator & 2FA is free to download, with no in-app purchases.
Which has better reviews, AEGIS Mobile ShieldONE or Proton Authenticator & 2FA?
Proton Authenticator & 2FA is rated higher. AEGIS Mobile ShieldONE averages 1.0 out of 5 from 1 ratings, while Proton Authenticator & 2FA averages 4.4 from 314 ratings.
Do AEGIS Mobile ShieldONE or Proton Authenticator & 2FA have ads?
Neither AEGIS Mobile ShieldONE nor Proton Authenticator & 2FA shows ads.
Which is updated more often, AEGIS Mobile ShieldONE or Proton Authenticator & 2FA?
AEGIS Mobile ShieldONE ships an update daily, and Proton Authenticator & 2FA weekly. Most recently, AEGIS Mobile ShieldONE was updated on October 2, 2026 and Proton Authenticator & 2FA on October 19, 2026.

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