Comparison

Protectimus SMART vs AtOnline Auth

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

Head to head
About

Protectimus SMART

This free two-factor authentication app provides secure access to websites requiring 2FA. It offers encrypted cloud backup, PIN and biometric protection, easy token transfer, and customization options for enhanced account security.

Highlights
  • Encrypted cloud backup
  • PIN and biometric protection
  • Token transfer to new devices
  • Token customization
  • Folder sorting
  • Supports OATH algorithms (HOTP, TOTP, OCRA)
  • Data signature function
Features
Read full description

Protectimus SMART OTP is currently the best two-factor authentication app worldwide. This free 2FA authenticator supports encrypted cloud backup, PIN and biometric authentication protection, simple token transfer to new devices, token customization, and folder sorting. The multi-factor authentication app Protectimus SMART OTP can be used to secure any website that requires two-factor authentication. Let's take a closer look at the features of this 2FA authenticator. - One of the most significant improvements in the new version of Protectimus SMART OTP is encrypted cloud backup. This feature ensures that users can recover their 2FA tokens if they lose their device or upgrade to a new one. - The app also makes it easy to transfer tokens to a new device and import tokens from Google Authenticator, making it simple to switch to Protectimus SMART OTP from other 2FA authenticators. - Additionally, Protectimus SMART OTP supports PIN and biometric authentication protection, including Touch ID and Face ID. - The 2FA app is compatible with a wide range of websites and applications as it supports all OATH one-time password generation algorithms such as HOTP, TOTP, and OCRA. - The MFA app also includes a data signature function (Confirm What You See) to help users better control their financial transactions. - The 2FA token Protectimus SMART OTP can generate 6 and 8-digit one-time passwords. Moreover, the 2FA authenticator offers several new features designed to make it more convenient for users to securely access their accounts. These include: - Delivery of push notifications. - The ability to customize tokens with different emojis and descriptions. - Convenient distribution of OTP tokens by folders. - Multiple language support (English, French, German, Spanish, Russian, and Ukrainian). Overall, Protectimus SMART OTP is a comprehensive 2FA authentication app that offers excellent features to help users secure their online accounts more efficiently and conveniently.

About

AtOnline Auth

Features
Read full description

AtOnline Auth is a secure two-factor authentication (2FA) app that helps protect your online accounts with time-based one-time passwords (TOTP), HMAC-based one-time passwords (HOTP), and OCRA challenge-response authentication. KEY FEATURES: Secure Token Management - Store and manage all your 2FA tokens in one place - Add tokens easily by scanning QR codes or entering details manually - Support for TOTP, HOTP, and OCRA (RFC 6287) authentication methods - Configurable token settings (6 or 8 digits, various time periods) OCRA Challenge-Response - Full RFC 6287 OCRA support for enterprise authentication - Scan challenge QR codes to auto-fill and generate responses - Support for PIN, session data, counter, and timestamp options - Compatible with banking and high-security applications Strong Security - Master password protection with industry-standard encryption - Biometric authentication (Face ID and Touch ID) for quick access - All sensitive data encrypted locally on your device - No cloud storage - your secrets never leave your device Smart Organization with Tags - Create custom tags to organize tokens by category (work, personal, banking, crypto) - Filter and find tokens instantly using tags - Manage dozens of accounts without losing track - Quick search across all your tokens Backup & Recovery - Secure encrypted backup export - Password-protected import/restore functionality - Never lose access to your accounts SUPPORTED ALGORITHMS: - SHA1, SHA256, and SHA512 hash algorithms - Compatible with all standard TOTP/HOTP/OCRA authenticator systems AtOnline Auth works offline and keeps your authentication codes secure and accessible whenever you need them.

Screenshots

Protectimus SMART4 screens
AtOnline Auth3 screens

Verdict

The call

Protectimus SMART and AtOnline Auth are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

Protectimus SMART ships an update every 7 months, AtOnline Auth every 9 months. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
Protectimus SMART versus AtOnline Auth: the parameters behind the verdict, then further details
ParameterProtectimus SMARTAtOnline Auth
PriceFreeFree
Rating3.9 (18 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings18 — better—
Update frequencyEvery 7 months — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size51 MB20 MB
Age rating4+4+
DeveloperProtectimus LimitedKarpelès Lab Inc.

In-app purchases

None

Protectimus SMART

No in-app purchases

None

AtOnline Auth

No in-app purchases

Questions

Is Protectimus SMART free?
Protectimus SMART is free to download, with no in-app purchases.
Is AtOnline Auth free?
AtOnline Auth is free to download, with no in-app purchases.
Do Protectimus SMART or AtOnline Auth have ads?
Neither Protectimus SMART nor AtOnline Auth shows ads.
Which is updated more often, Protectimus SMART or AtOnline Auth?
Protectimus SMART ships an update every 7 months, and AtOnline Auth every 9 months. Most recently, Protectimus SMART was updated on October 23, 2026 and AtOnline Auth on October 28, 2026.

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