Comparison

Calculator₊ vs Covidence

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

Head to head
About

Calculator₊

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversions. It features an AI-powered math solver that can solve problems from photos and provides a dedicated space for math notes. Accessibility features ensure ease of use for all users.

Highlights
  • Basic and scientific calculations
  • Unit and currency converter
  • AI-powered math solver with photo recognition
  • Math notes with instant solutions
  • Calculation history log
  • Accessibility features (Dynamic Text Size, VoiceOver, High-Contrast Mode)
Features
Read full description

America's #1 Calculator App! Download Calculator₊ Now - Your All-in-One Math Solution! We're excited to announce the biggest update to Calculator₊ in 10 years! With over 200 million downloads and a whopping 3 million+ 5-star ratings, Calculator₊ is the trusted choice of millions worldwide. And now, it's even better! More Than Just Your Average Calculator! • Standard Calculator: Breeze through basic arithmetic operations like addition, subtraction, multiplication, and division. • Scientific Calculator: Tackle complex calculations with ease, including trigonometric, logarithmic, and exponential functions. • Calculation History: Keep track of your past calculations with a detailed history log. • Unit Converter: Effortlessly convert units like inches to centimeters and much more, making it a handy tool for everyday use. • Percentage Calculator: Easily calculate percentages, increases, and decreases with pre-designed input fields that do the work for you. • Currency Converter: Convert currencies in real-time, including Bitcoin, with the latest exchange rates. • Fraction Calculator: Work seamlessly with fractions – perfect for students and professionals alike. • Ad-Free Experience: Say goodbye to annoying full-screen ads and focus on your calculations. Be Amazed by Our New AI-Powered Math Solver! • AI Math Solutions: Instantly solve math equations, quizzes, and word problems with our advanced AI. Use the Photo Solver to snap a picture of any problem, and Calculator₊ will work its magic. • Math Notes: A dedicated note-taking tool for all your math needs. Jot down equations, diagrams, and notes in a space designed for mathematical thinking. • Instant Math: In Math Notes mode, simply write an equation, add an "=", and Calculator₊ will generate the solution in real-time. Built for Everyone, Now Even More Accessible! Calculator₊ is designed to work effortlessly for all users, no matter how you use your iPhone, and includes these additional accessibility features: • Dynamic Text Size: Scale the calculator interface to the text size that works best for you, without losing layout clarity. • VoiceOver Support: Navigate & Calculate using VoiceOver, fully compatible with iOS accessibility settings. • High-Contrast Mode: A bold, high-contrast display that makes every button and result instantly readable in any lighting condition. • Dark and Light Mode: Calculator₊ automatically adjusts to your preferred mode. Why Choose Calculator₊? • Proven Track Record: Over a decade of providing fast and reliable calculations. • Loved by Millions: Join the 200+ million users who rely on Calculator₊, with an average rating of 4.7 stars from 3.5 million reviews. • Versatile & Powerful: Handles everything from basic sums to advanced scientific calculations. Perfect for school, work, or home. Celebrate with a Special Gift! To celebrate the release of this massive update, we're offering a 1-MONTH FREE TRIAL of our premium features, including: • Ad-Free Experience: No more pesky ads. • Unlimited AI Math Solving: Solve as many equations and problems as you need. • Unlimited Fraction Calculations: Ideal for students and professionals alike. • Unlimited Currency Conversions: Including real-time Bitcoin conversions. • Premium Customer Support: Get priority assistance from our expert support team. If you have any suggestions or questions, our support team is ready to help. Simply email us at support@impalastudios.com. Terms & Conditions: https://impalastudios.com/terms Privacy Policy: https://impalastudios.com/privacy

About

Covidence

This client utility app allows users to control various Covidence devices, including Oculus5, Oculus Nxtgen, Audius, and Micro Oculus product ranges. It provides essential functionality for managing these smart home and audio devices.

Highlights
  • Device control
  • Oculus5 support
  • Oculus Nxtgen support
  • Audius support
  • Micro Oculus support
Features
Read full description

Client utility for Oculus5, Oculus Nxtgen, Audius5, Audius and Micro Oculus product ranges.

Screenshots

Calculator₊4 screens
Covidence3 screens

Verdict

The call

The clearest difference is in-app purchases: Covidence at none against Calculator₊'s 10. Covidence also leads on ads (none vs shown) and rating (5.0 vs 4.7). Calculator₊'s advantage is ratings volume (1.7M vs 1) and update cadence (every 3 weeks vs every 4 months). On price 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. Calculator₊ sells 10 in-app purchases, starting at $0.99 per month. Covidence asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Covidence holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Calculator₊ has 1.7M ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 63% of Calculator₊'s written reviews are positive against 50% of Covidence's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Calculator₊ ships an update every 3 weeks, Covidence every 4 months. The most recent releases landed on November 12, 2026 and November 6, 2026 respectively.

Scorecard9 real differences · 2 level
Calculator₊ versus Covidence: the parameters behind the verdict, then further details
ParameterCalculator₊Covidence
PriceFreeFree
Rating4.7 (1.7M ratings)5.0 (1 ratings) — better
Positive reviews63.1% of reviews — better50.0% of reviews
Number of ratings1.7M — better1
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#113 — better—
DevicesiPhone, iPad, iPod, Apple Watch, Vision Pro — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size247 MB158 MB
Age rating4+17+
DeveloperImpala StudiosCovidence A/S

Customer experience

Calculator₊

All ratings1,736,431 ratings
Positive92.2%
Neutral3.5%
Negative4.3%
Written reviews3,118 reviews
Positive63.1%
Neutral6.2%
Negative30.8%

Covidence

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Bugs and requests

Calculator₊

Reported bugs

2 issues
  • Incorrect calculation results for certain functions
  • Inability to delete last entered digit without clearing entire calculation

Requested features

3 requests
  • Ability to delete individual calculation history entries
  • More free advanced calculator features (fractions, currency, etc.)
  • Improved ad placement that doesn't interfere with usage

Covidence

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Calculator₊

Subscriptions10
  • Premium Member Special Offer7 Days trial$0.991 Month
  • Monthly Premium Member3 Days trial$0.991 Month
  • 1 Month Premium Access7 Days trial$1.491 Month
Show 7 more
  • Half-Yearly Premium Member3 Days trial$3.996 Months
  • Calculate Faster, AI, & No Ads3 Days trial$4.997 Days
  • 1 Year Ad-Free3 Days trial$5.991 Year
  • Calculate Faster, AI, & No Ads3 Days trial$5.997 Days
  • 1 Month Premium Trial1 Month trial$5.997 Days
  • Math Solver/Full Access/No Ads$5.997 Days
  • 6 Months Premium Access7 Days trial$8.996 Months
None

Covidence

No in-app purchases

Questions

Is Calculator₊ free?
Calculator₊ is free to download, with in-app purchases available.
Is Covidence free?
Covidence is free to download, with no in-app purchases.
Which has better reviews, Calculator₊ or Covidence?
Covidence is rated higher. Calculator₊ averages 4.7 out of 5 from 1.7M ratings, while Covidence averages 5.0 from 1 ratings.
Do Calculator₊ or Covidence have ads?
Calculator₊ shows ads; Covidence does not.
Which is updated more often, Calculator₊ or Covidence?
Calculator₊ ships an update every 3 weeks, and Covidence every 4 months. Most recently, Calculator₊ was updated on November 12, 2026 and Covidence on November 6, 2026.

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