Comparison

Authenticator App vs SYSTEM // ZERO

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

Head to head
About

Authenticator App

This app provides secure two-factor authentication (2FA) and multi-factor authentication (MFA) by generating time-based one-time passwords (TOTP) for online accounts. It offers encrypted backups, cloud sync, and QR code support for easy account management across multiple devices.

Highlights
  • Secure 2FA/MFA code generation
  • Encrypted backup and cloud sync
  • QR code account addition
  • Multi-device access
  • Reliable and fast performance
Features
Read full description

Authenticator App is a powerful authentication app designed to deliver secure and seamless two-factor authentication (2FA) and multi-factor authentication (MFA) for all your online accounts. It strengthens your digital protection by generating time-based one-time passwords (TOTP), OTP codes, and authenticator codes for any service that supports 2FA. Built as a dependable alternative to Google Authenticator, this app helps safeguard both your personal and business accounts. Whether you’re protecting your email, managing social media access, logging into cryptocurrency platforms, or accessing work-related systems, Authenticator App makes authentication safe, fast, and convenient. It works with major platforms including Google, Facebook, Instagram, Microsoft, Binance, and many more. Key Features: Secure Authentication: Easily create and manage 2FA, TOTP, and authenticator codes for thousands of supported services. Reliable and Fast Performance: Instantly access your verification and authenticator codes, even when handling multiple accounts. Encrypted Backup & Cloud Sync: Keep your authentication data protected with end-to-end encryption and sync it across your iOS devices. QR Code Support: Add new accounts quickly by scanning QR codes with your camera and setting up authentication in seconds. Multi-Device Access: Use your MFA, TOTP, and authenticator codes across multiple devices without hassle. Download Authenticator today and upgrade your online security with a simple, efficient, and trusted MFA solution. Your all-in-one authentication tool — secure, fast, and always synchronized. https://www.solid-digital.net/terms.html https://www.solid-digital.net/privacy.html

About

SYSTEM // ZERO

Features
Read full description

YOUR LIFE. YOUR QUESTS. YOUR SYSTEM. SYSTEM//ZERO transforms personal progress into an immersive leveling experience. Set your objectives, complete daily quests and watch your character grow alongside you. Every completed mission moves you forward. COMPLETE DAILY QUESTS Turn the things you want to accomplish into missions across different areas of your life. Check them off as you complete them and build consistency one day at a time. LEVEL UP Earn progress through your actions and advance through levels and ranks. EVOLVE AS YOU PROGRESS Your system evolves with you. Unlock new stages and experience a visual progression that makes every milestone feel meaningful. BUILD YOUR STATS Develop different attributes and see your progress reflected through your stats and overall power. CHOOSE YOUR SYSTEM Customize your experience with different System Packs, each offering its own visual identity, atmosphere and progression experience. YOUR PROGRESS. SECURED. Create an account to protect your progress and keep your unlocked content connected to you. You don't need another checklist. You need a system. Enter SYSTEM//ZERO.

Screenshots

Authenticator App4 screens
SYSTEM // ZERO4 screens

Verdict

The call

The clearest difference is ads: SYSTEM // ZERO at none against Authenticator App's shown. SYSTEM // ZERO also leads on update cadence (every 3 days vs every 6 weeks). On price, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Authenticator App sells 8 in-app purchases, starting at $2.99 per 7 days and SYSTEM // ZERO sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Authenticator App ships an update every 6 weeks, SYSTEM // ZERO every 3 days. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Authenticator App versus SYSTEM // ZERO: the parameters behind the verdict, then further details
ParameterAuthenticator AppSYSTEM // ZERO
PriceFreeFree
Rating4.3 (29 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings29 — better—
Update frequencyEvery 6 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size45 MB57 MB
Age rating4+12+
DeveloperSolid DijitalRaushan Nimatov

In-app purchases

8 purchases

Authenticator App

Subscriptions8
  • Weekly Basic Subscription3 Days trial$2.997 Days
  • Weekly Pre Subscription3 Days trial$7.997 Days
  • Weekly Plus Subscription3 Days trial$8.997 Days
Show 5 more
  • Weekly Pro Subscription3 Days trial$9.997 Days
  • Weekly Platinium Subscription3 Days trial$11.997 Days
  • Yearly Basic Subscription$39.991 Year
  • Yearly Plus Subscription$49.991 Year
  • Yearly Pro Subscription$59.991 Year
2 purchases

SYSTEM // ZERO

One-time2
  • Knight Protocol System Pack$9.99
  • Solo Level Up System Pack$9.99

Questions

Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Is SYSTEM // ZERO free?
SYSTEM // ZERO is free to download, with in-app purchases available.
Do Authenticator App or SYSTEM // ZERO have ads?
Authenticator App shows ads; SYSTEM // ZERO does not.
Which is updated more often, Authenticator App or SYSTEM // ZERO?
Authenticator App ships an update every 6 weeks, and SYSTEM // ZERO every 3 days. Most recently, Authenticator App was updated on October 4, 2026 and SYSTEM // ZERO on October 10, 2026.

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