Comparison

Calculator HD Pro vs iCalc

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

Head to head
About

Calculator HD Pro

This app offers a powerful and customizable calculator experience with a dual-line display for seeing input and results simultaneously. Save and organize your calculations with history, labeling, and email options. Personalize layouts, themes, and fonts for a comfortable and efficient user experience.

Highlights
  • Dual-line display
  • Multi-line input
  • Calculation history
  • Customizable layouts and themes
  • Full scientific functions
  • Left-handed mode
  • VoiceOver accessibility
Features
Read full description

A colorful calculator with big buttons, comprehensive features, and extensive customization. Used by millions. Completely ad-free. SEE EVERY STEP ・Dual-line display - shows your input and result simultaneously ・Multi-line input for long equations ・Tap & hold to move the cursor or copy and paste where you want SAVE YOUR WORK ・History saves every calculation with time and date ・Label important calculations for easy reference ・Email single calculations or complete history ・Swipe down to review previous work CUSTOMIZE EVERYTHING ・6 layouts including extra-large button options ・10 color themes plus Dark Mode ・Adjustable font size and bold text ・Left-handed mode ・Show or hide features you don't need SCIENTIFIC FUNCTIONS ・Full scientific calculator when needed ・Memory buttons with values displayed ・Percentage and backspace buttons ・Automatic scientific notation ・VoiceOver accessibility OPTIONAL IN APP PURCHASES ・Today View Widget (iOS 17 and below) ・Multiple History Tapes ADDITIONAL FEATURES ・Customizable button symbols and decimal settings ・Multiple backspace button styles ・iPad Split View and 3D Touch support ・Gesture controls for quick access URL Scheme: calculatorhdpro://

About

iCalc

This versatile calculator supports over 70 languages and offers advanced features like real-time multi-line input, historical ledgers, and easy copying of calculations. It's designed for everyday users, financial professionals, and students needing efficient calculation tools.

Highlights
  • Real-time multi-line input
  • Historical ledger function
  • Copy and paste calculations
  • Supports over 70 languages
  • Adjustable keyboard size
  • Bright and dark themes
Features
Read full description

This app supports more than 70 languages. This APP is mainly used for ordinary people, financial personnel, students, and staff who need simple operations. The historical ledger function of this app is very helpful to those who like to account. Can be displayed in real time and multi -line input calculation, and the number and results can be changed at any position. For example, which high unit price is high. You can also copy the calculation results or paste the calculation data between different applications. For example, I wrote a formula in WeChat: 2 multiplied by 3, or 2* 3 and other copies, and changed more. You can also copy the formula, result, separate/overall copy, and paste it into WeChat. Let friends know the calculation process. The huge keys can easily get rid of the confusion of the big finger. Extremely simple and practical calculators can be suitable for simple calculations of all crowds. You can easily get started without spending any learning costs. [Automatic Subscription Service Description] 1. Subscription Service: a) iCalc VIP (1 month) b) iCalc VIP (12 months) 2. Subscription Price: a) iCalc VIP (1 month): USD$0.99/Month b) iCalc VIP (12 months): USD$9.99/Year 3. Payment: After the user confirms the purchase and payment, it will be credited to the iTunes account 4. Automatic Renewal: Apple iTunes account will be deducted within 24 hours before expiration. After the deduction is successful, the subscription period will be extended by one subscription period 5. Turn off the service: You can go to ""Settings"" on your iPhone -> enter """"iTunes Store and App Store"""" -> click ""Apple ID"", select ""View Apple ID"", enter the ""Account Settings"" page, click ""Subscription"", manage the automatic subscription service, and if you need to cancel, you can turn it off 24 hours before the end of each billing cycle. No more deductions will be made within 24 hours before expiration 6. Service Agreement: a) Privacy Agreement: https://zxskigg.github.io/privacy/en_US/main.html b) User Agreement: https://zxskigg.github.io/privacy/en_US/user-agreement.html The following is the specific function: 1. Show the input process in real time and save the calculation process as a historical record, and manage it (can be cleared). 2. Support multi -line input and modification at the same time to facilitate comparison. For example, which of the unit price of 2 portfolio products is high, 3. Can increase and delete. Including the backbone key, you can delete the error input. 4. Seek harmony and average and median value for all results. 5. Hidden and displayed keyboards 6. Eliminate and reduce text by setting or gesture 7. Overall copy and overall paste 8. Paste the native copy, you can copy and paste each other between different apps 9. Re -start the APP history records are not lost. 10. Keyboard sound, Chinese voice and vibration feel. 11. Bright and dark theme 12. Show/hide thousands of separators 14. The operation steps can return to the previous step and advance to the next step. 15. The text can be inserted together with numbers, such as: Apple 30.5 + banana 20.6 = 51.1 16. Save the current data at any time, you can check the saved information on the historical page, and you can add the collection for important information. 17. Fully support PAD, and the keyboard is switched left and right. 18. Save the content screenshot to the album. 19. Mortgage Information. .... more I wish you a happy use!

Screenshots

Calculator HD Pro4 screens
iCalc4 screens

Verdict

The call

The clearest difference is price: iCalc at Free against Calculator HD Pro's $9.99. iCalc also leads on update cadence (every 6 days vs every 2 months) and iOS requirement (12.0 vs 15.2). Calculator HD Pro's advantage is ads (none vs shown) and ratings volume (11K vs 38). On review sentiment, in-app purchases, monetization model 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

iCalc is free to download; Calculator HD Pro costs $9.99 up front. Calculator HD Pro sells 2 one-off in-app purchases and iCalc sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Calculator HD Pro holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Calculator HD Pro has 11K ratings behind it against 38, so its average is the more settled of the two. Written reviews complicate that: 95% of Calculator HD Pro's written reviews are positive against 100% of iCalc's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Calculator HD Pro ships an update every 2 months, iCalc every 6 days. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator HD Pro versus iCalc: the parameters behind the verdict, then further details
ParameterCalculator HD ProiCalc
Price$9.99Free — better
Rating4.8 (11K ratings) — better4.6 (38 ratings)
Positive reviews94.8% of reviews100.0% of reviews — better
Number of ratings11K — better38
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.212.0 — better
Further details — not scored
Size48 MB53 MB
Age rating4+4+
DeveloperCider Software LLC小生 张

Customer experience

Calculator HD Pro

All ratings11,230 ratings
Positive96.6%
Neutral1.8%
Negative1.6%
Written reviews786 reviews
Positive94.8%
Neutral3.4%
Negative1.8%

iCalc

All ratings38 ratings
Positive89.5%
Neutral2.6%
Negative7.9%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Calculator HD Pro

Reported bugs

2 issues
  • Cannot delete lists in history tapes
  • Ads still appear after purchasing full version

Requested features

3 requests
  • Add binary, decimal, and hex conversion
  • Ability to manually sort result lines
  • Add a tax calculation button

iCalc

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Calculator HD Pro

One-time2
  • Widget$1.99
  • Multiple History Tapes$1.99
3 purchases

iCalc

Subscriptions2
  • iCalc VIP (1 month)$0.991 Month
  • iCalc VIP (12 months)$9.991 Year
One-time1
  • Lifetime Ownership$59.99

Questions

Is Calculator HD Pro free?
Calculator HD Pro costs $9.99, and also offers in-app purchases.
Is iCalc free?
iCalc is free to download, with in-app purchases available.
Which has better reviews, Calculator HD Pro or iCalc?
Calculator HD Pro is rated higher. Calculator HD Pro averages 4.8 out of 5 from 11K ratings, while iCalc averages 4.6 from 38 ratings.
Do Calculator HD Pro or iCalc have ads?
iCalc shows ads; Calculator HD Pro does not.
Which is updated more often, Calculator HD Pro or iCalc?
Calculator HD Pro ships an update every 2 months, and iCalc every 6 days. Most recently, Calculator HD Pro was updated on September 24, 2026 and iCalc on September 22, 2026.

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