Comparison

Authenticator App vs Rounding Calculator & Sig Figs

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

Head to head
About

Authenticator App

Secure your online accounts with two-factor and multi-factor authentication. Generates time-based one-time passwords (TOTP) and OTP codes for fast, reliable logins. Includes a built-in password manager and encrypted backup for all your credentials.

Highlights
  • Two-factor authentication (2FA)
  • Multi-factor authentication (MFA)
  • Time-based one-time passwords (TOTP)
  • Built-in password manager
  • Encrypted backup and sync
  • Import from other authenticator apps
  • Offline code generation
Features
Read full description

Authenticator App – Secure Accounts and Passwords Protect your online accounts with secure two-factor authentication (2FA) and multi-factor authentication (MFA) using this powerful authenticator app. Authenticator App generates time-based one-time passwords (TOTP) and OTP codes for safe, fast, and reliable logins, adding a strong layer of protection beyond passwords. Access your authentication codes anytime, even without an internet connection. All TOTP codes and OTP verification codes are generated directly on your device, ensuring fast, private, and secure sign-ins without relying on SMS. Easily manage your 2FA codes, MFA accounts, passwords, and login credentials in one place with a simple and user-friendly authenticator experience. Secure & Private All your data in this authenticator app is encrypted locally and in iCloud, ensuring only you can access it. Our end-to-end encryption protects your authentication codes, TOTP secrets, OTP tokens, and passwords, keeping your accounts secure at all times. Built-in Password Manager Authenticator App is more than just a 2FA authenticator. Store and manage all your passwords with a secure password manager. Keep your login credentials safe, organized, and protected while using your authenticator for daily access. Secure TOTP & Offline Access Generate TOTP codes, OTP verification codes, and 2FA authentication tokens for secure logins across thousands of platforms. Your authenticator app works even without internet access, ensuring uninterrupted MFA authentication anytime. 2FA Encrypted Backup & Sync Automatically back up your 2FA codes, TOTP accounts, and passwords securely to iCloud. Sync your authenticator data across iPhone, iPad, and devices, and restore access anytime. Import From Other Apps Switch easily from Google Authenticator or Microsoft Authenticator: Import via QR code Upload using CSV Add accounts manually Manage all your 2FA, MFA, and TOTP accounts in one secure authenticator app. Export Anytime Export all your authentication codes, TOTP entries, and 2FA accounts via QR code or CSV. Your data stays in your control. Quick Access with Widget Access your OTP codes, authentication tokens, and 2FA codes instantly from your Home Screen using the widget for faster login. Apple Watch Support View your authentication codes, OTP tokens, and TOTP entries directly on your Apple Watch for seamless access. Organize with Folders Create folders to manage your authentication accounts, passwords, and login data easily with drag-and-drop control. App Lock & Security Protect your authenticator app with PIN, Face ID, or Touch ID. Enable auto-lock to secure your 2FA codes, MFA accounts, and passwords. Full Control of Your Accounts Edit, update, or remove your authentication entries, TOTP accounts, and passwords anytime. Manage all your 2FA and MFA accounts in one place. Supports All Major Services Works with Google, Microsoft, Instagram, Facebook, Amazon, PayPal, Dropbox, and more. This authenticator app supports all major platforms for 2FA, MFA, and OTP authentication. Download Authenticator App Today Secure your digital life with a reliable authenticator, 2FA, MFA, TOTP generator, OTP code generator, and password manager. Protect your accounts from unauthorized access. Privacy Policy: https://sites.google.com/a1apps.co/privacypolicy-aiauthenticator/home Terms of Use: https://blog.a1apps.co/terms-of-use-a1-authenticator/

About

Rounding Calculator & Sig Figs

Easily round numbers to the nearest integer or a specified number of decimal places. Offers options to round up or down, making it suitable for students and professionals needing quick, accurate calculations for various real-world applications.

Highlights
  • Round whole numbers to nearest integer, 10, 100, or 1000
  • Round decimals to 1-9 places
  • Round up and down options
  • Intuitive interface
  • Real-world application examples
Read full description

Rounding Calculator rounds any number the moment you type it. Round to the nearest tenth, hundredth or whole number, round to significant figures, or round to a fraction, and see every step of the working. Made for students, teachers, accountants, engineers and anyone who needs a rounded number they can trust. LIVE ANSWER, NO BUTTON Type a number or a calculation and the rounded answer updates instantly. FIVE WAYS TO ROUND • Decimal places: round to 0 to 15 decimal places • Place value: nearest ten, hundred, thousand, million or billion, and nearest tenth, hundredth, thousandth down to billionths • Significant figures: round to 1 to 15 sig figs • Nearest multiple: round to the nearest 0.05, 0.25, 5, 10 or any value you choose • Nearest fraction: round to the nearest 1/2, 1/4, 1/8, 1/16, 1/32 or 1/64, shown as a mixed number like 3 5/8 or as a decimal TEN ROUNDING RULES Round half up, half down, half even (banker's rounding), half odd, half towards +∞, half towards −∞, round up (ceiling), round down (floor), truncate and away from zero. The rule picker shows your number's answer under every rule side by side and warns you when a number sits exactly halfway, so you always know why 2.5 becomes 2 or 3. SHOW THE WORKING • Step-by-step explanation in plain English • Number line showing both possible answers, the halfway point and the distance to each • Colored digits mark the rounding digit, the deciding digit and the dropped digits • Rounding error shown as a value and as a percentage • Copy the steps as text, share them as an image or save them to Photos ACCURATE WITH ANY NUMBER • Exact decimal math: 2.675 rounds correctly to 2.68 • Very large and very small numbers, from 1E-300 to 1E300 • Negative numbers handled correctly under every rule • Works with calculations: + − × ÷, brackets, %, powers, square root and π SIGNIFICANT FIGURES COUNTER Count the sig figs in any number, see which digits are significant, get clear explanations for tricky cases like 1200, and round to n significant figures in one tap. Ideal for chemistry and physics homework. BATCH ROUNDING Round a whole list of numbers at once, compare the totals before and after rounding, and export the results to CSV. MONEY ROUNDING Cash rounding to the nearest 0.01, 0.05, 0.10 or up to 10, rounding up, down or to the nearest. Set price endings like .99, .95, .90, .49 or .00. TIME ROUNDING Round times and durations to the nearest 1, 5, 6, 10, 15 or 30 minutes or to the hour. Get the result in h:mm and in decimal hours, useful for timesheets and billing. HANDY EXTRAS • Output as plain, 1,234,567, scientific, engineering or E-notation • Built-in number pad with a movable cursor • Smart paste reads values like $1,234.50 or 1.234,50 € • Save your favorite mode, rule and precision and apply it in one tap • History saves every calculation: search, reopen, copy, share or remove with undo • Decimal point or comma, choice of thousands separator, and Indian number grouping • Light, dark or system theme WHO IT'S FOR • Students learning to round decimals, whole numbers and significant figures • Teachers checking answers and showing the method • Science students working with sig figs and scientific notation • Accountants and shop owners rounding prices and cash • Anyone rounding hours for timesheets Download Rounding Calculator and round off numbers, decimals, sig figs, fractions, money and time with confidence.

Screenshots

Authenticator App4 screens
Rounding Calculator & Sig Figs4 screens

Verdict

The call

The clearest difference is in-app purchases: Rounding Calculator & Sig Figs at none against Authenticator App's 10. Authenticator App's advantage is update cadence (every 3 weeks vs every 24 months) and ratings volume (917 vs 8). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Authenticator App sells 10 in-app purchases, starting at $6.99 per 7 days. Rounding Calculator & Sig Figs asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Authenticator App against 4.5 for Rounding Calculator & Sig Figs. That said, the two scores are not equally well evidenced: Authenticator App has 917 ratings behind it against 8, so its average is the more settled of the two.

UpkeepUpdate frequency

Authenticator App ships an update every 3 weeks, Rounding Calculator & Sig Figs every 24 months. The most recent releases landed on November 8, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Authenticator App versus Rounding Calculator & Sig Figs: the parameters behind the verdict, then further details
ParameterAuthenticator AppRounding Calculator & Sig Figs
PriceFreeFree
Rating4.6 (917 ratings) — better4.5 (8 ratings)
Positive reviews37.9% of reviews—
Number of ratings917 — better8
Update frequencyEvery 3 weeks — betterEvery 24 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size320 MB26 MB
Age rating4+4+
DeveloperA1AppsMuhammad Awais Younas

Customer experience

Authenticator App

All ratings908 ratings
Positive90.6%
Neutral3.1%
Negative6.3%
Written reviews29 reviews
Positive37.9%
Neutral0.0%
Negative62.1%

Rounding Calculator & Sig Figs

All ratings8 ratings
Positive87.5%
Neutral12.5%
Negative0.0%

In-app purchases

10 purchases

Authenticator App

Subscriptions10
  • Pro Weekly Plan$6.997 Days
  • Pro Weekly Plan3 Days trial$6.997 Days
  • Pro Weekly Plan$9.997 Days
Show 7 more
  • Pro Weekly Plan3 Days trial$9.997 Days
  • Premium Monthly$9.991 Month
  • Pro Yearly$24.991 Year
  • Pro Yearly$49.991 Year
  • Pro Yearly3 Days trial$49.991 Year
  • Pro Yearly$59.991 Year
  • Pro Yearly Plan3 Days trial$59.991 Year
None

Rounding Calculator & Sig Figs

No in-app purchases

Questions

Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Is Rounding Calculator & Sig Figs free?
Rounding Calculator & Sig Figs is free to download, with no in-app purchases.
Which has better reviews, Authenticator App or Rounding Calculator & Sig Figs?
Authenticator App is rated higher. Authenticator App averages 4.6 out of 5 from 917 ratings, while Rounding Calculator & Sig Figs averages 4.5 from 8 ratings.
Do Authenticator App or Rounding Calculator & Sig Figs have ads?
Both Authenticator App and Rounding Calculator & Sig Figs show ads.
Which is updated more often, Authenticator App or Rounding Calculator & Sig Figs?
Authenticator App ships an update every 3 weeks, and Rounding Calculator & Sig Figs every 24 months. Most recently, Authenticator App was updated on November 8, 2026 and Rounding Calculator & Sig Figs on November 4, 2026.

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