Comparison

Authenticator vs Wonder Cal

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

Head to head
About

Authenticator

This app provides two-factor authentication to secure your online accounts. It generates time-based one-time passwords for various services, offering features like cloud backup, biometric protection, and offline code generation. Protect your digital life with this reliable and user-friendly security solution.

Highlights
  • Time-based one-time passwords (TOTP)
  • Secure cloud backup and sync
  • Biometric and PIN protection
  • QR code scanner for setup
  • Offline code generation
  • Support for multiple accounts
Features
Read full description

Enhance your account security with this App. This powerful and easy-to-use tool provides two-factor authentication to help protect your online accounts from unauthorized access. Generate time-based one-time passwords for all your supported services, including Google, Facebook, Microsoft, Instagram, Amazon, and many more. Simply scan a QR code or enter your secret key to start securing your accounts instantly. Key Features: * Time-based one-time passwords (TOTP) * Secure cloud backup and sync (optional) * Biometric and PIN protection * QR code scanner for fast setup * Offline functionality – codes generated without internet * Support for multiple accounts and services * User-friendly interface with customizable options Your privacy and security are our top priorities. Keep your accounts safe with a reliable and private two-factor authentication solution. Subscription Information: - Payment. Charges apply to your iTunes Account at purchase confirmation. - Auto-Renewal. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. - Renewal Charges. Your account will be charged for renewal within 24 hours prior to the end of the current period, based on the selected plan. - Manage Your Subscription. Go to your Account Settings after purchase to handle auto-renewal and other preferences. Privacy Policy:https://telegra.ph/Privacy-Policy-07-14-56 Terms Of Use: https://telegra.ph/Terms-of-Use-07-14

About

Wonder Cal

This app transforms your device into a powerful calculation tool, offering everything from basic arithmetic to advanced scientific, financial, and programming functions. It also includes a unit converter, health calculators, and a unique photo-solving feature for math problems.

Highlights
  • General, Scientific, Finance, Programmer Calculators
  • Health and Unit Converters
  • Photo Solve for Math Problems
  • Step-by-step Solution Explanations
  • Customizable Themes
  • Real-time Currency Conversion
Features
Read full description

Wonder Cal is a full-featured smart calculation tool for iOS, integrating AI-powered recognition with multi-scenario computing capabilities. It delivers an efficient, accurate, all-in-one mathematical solution for daily office work, academic research, and personal life management. ## Core Features **Intelligent Image Recognition Calculation** Leveraging advanced AI visual recognition technology, users can directly capture mathematical formulas, handwritten equations, and chart content from paper or electronic devices via the camera. The system automatically performs recognition and computation, significantly improving the efficiency of complex formula entry. This feature is ideally suited for academic literature processing, homework verification, and engineering draft validation. **Handwriting Canvas Formula Input** Equipped with a high-precision handwriting recognition engine, the app allows users to freely write mathematical expressions on a digital canvas, which are instantly converted into computable formats with results returned in real time. This feature replicates the natural experience of pen-and-paper writing, making it particularly suitable for quick notation and reasoning on touch-enabled devices. **Voice Command Calculation** Integrated with speech recognition and semantic parsing modules, users can articulate calculation requests through natural language (e.g., "one hundred and twenty times fifty-seven"), and the system automatically interprets and returns the computed result. This fully hands-free experience is ideal for multitasking scenarios or situations where manual input is inconvenient. **Multi-Dimensional Professional Calculator Suite** The application incorporates six dedicated calculation modules, covering a broad spectrum of use cases: - **Basic Calculator**: Addresses everyday arithmetic needs with a clean interface and responsive performance; - **Scientific Calculator**: Supports trigonometric functions, logarithms, exponents, power operations, and other advanced mathematical functions, catering to engineering, physics, finance, and other professional domains; - **Date Interval Calculator**: Precisely computes the number of days, weeks, months, and business days between two dates, facilitating project scheduling and planning; - **Health Calculator**: Integrates commonly used health metrics including BMI, basal metabolic rate, and body fat percentage, providing quantitative references for personal wellness management; - **And More**: New calculators are continually added to meet evolving user needs. **Customizable Theme Personalization System** Offers a rich selection of visual themes, including dark mode, light mode, and various color palettes. Users can freely switch according to usage scenarios or personal preferences, balancing functionality with aesthetic appeal while ensuring visual comfort across different lighting environments. **Complete Calculation Traceability** The system automatically preserves every calculation record along with the complete derivation steps. Users can revisit, verify, or resume editing historical calculation tasks at any time. This feature effectively eliminates redundant effort and proves especially valuable in rigorous work scenarios that require repeated data verification or step-by-step reasoning. ## Subscription Service When you subscribe to the "VIP Subscription" service, you will enjoy the following benefits: 1. Unrestricted access to all features. 2. AI content recommendations based on usage habits. Payment for subscriptions is straightforward—the user's iTunes account is credited immediately after confirmation of purchase and payment. Please note that the Apple iTunes account will be automatically debited 24 hours prior to expiration. Upon successful deduction, the subscription term will be extended by one subscription cycle. User Agreement: https://www.wonderda.com/agreement.html Privacy Agreement: https://www.wonderda.com/privacy.html

Screenshots

Authenticator4 screens
Wonder Cal4 screens

Verdict

The call

The clearest difference is review sentiment: Wonder Cal at 100% against Authenticator's 0%. Wonder Cal also leads on rating (5.0 vs 4.5). Authenticator's advantage is ratings volume (61 vs 5). On price, update cadence, ads and in-app purchases 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 sells 3 in-app purchases, starting at $6.99 per 7 days and Wonder Cal sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Wonder Cal holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Authenticator has 61 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of Authenticator's written reviews are positive against 100% of Wonder Cal's.

UpkeepUpdate frequency

Authenticator ships an update every 5 months, Wonder Cal every 3 months. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
Authenticator versus Wonder Cal: the parameters behind the verdict, then further details
ParameterAuthenticatorWonder Cal
PriceFreeFree
Rating4.5 (61 ratings)5.0 (5 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings61 — better5
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPad — better
Requires iOS16.016.0
Further details — not scored
Size22 MB15 MB
Age rating4+4+
DeveloperDEDUSHKA DEVELOPMENT - FZCO小利 薛

Customer experience

Authenticator

All ratings45 ratings
Positive88.9%
Neutral2.2%
Negative8.9%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Wonder Cal

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Authenticator

Subscriptions3
  • Weekly3 Days trial$6.997 Days
  • Monthly$19.991 Month
  • Yearly$49.991 Year
1 purchases

Wonder Cal

Subscriptions1
  • VIP Subscription Service$4.991 Month

Questions

Is Authenticator free?
Authenticator is free to download, with in-app purchases available.
Is Wonder Cal free?
Wonder Cal is free to download, with in-app purchases available.
Which has better reviews, Authenticator or Wonder Cal?
Wonder Cal is rated higher. Authenticator averages 4.5 out of 5 from 61 ratings, while Wonder Cal averages 5.0 from 5 ratings.
Do Authenticator or Wonder Cal have ads?
Neither Authenticator nor Wonder Cal shows ads.
Which is updated more often, Authenticator or Wonder Cal?
Authenticator ships an update every 5 months, and Wonder Cal every 3 months. Most recently, Authenticator was updated on October 22, 2026 and Wonder Cal on October 15, 2026.

Other comparisons