Comparison

DayCalc vs The Calculator Pro·

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

Head to head
About

DayCalc

This app combines a powerful calculator with a comprehensive unit converter. It offers standard, scientific, and fraction calculations, along with over 600 units across 20 categories. Users can customize units, add notes to calculations, and enjoy a visually appealing interface with multiple themes.

Highlights
  • Standard, scientific, and fraction calculator
  • Live voice calculator
  • Add notes to calculations
  • Over 600 units in 20 categories
  • Custom unit creation
  • Automatic currency exchange rate updates
  • 50+ themes and dark mode support
Features
Read full description

DayCalc is an easy to use, beautifully packaged calculator and Unit Converter, includes standard, scientific and fractions calculator, best calculator for your iPad, iPhone and Apple Watch! Calculator: - Live voice calculator - Add notes to history of your calculations, and you can share - Choose between a basic calculator or scientific calculator with more than 30 scientific operations - Use both calculators in portrait or landscape mode (both iPhone and iPad), and split screen support for iPad - Auto adjust height of the history list, no matter how long the calculation process can be displayed in full - Allows locking of calculation history, cannot be deleted and modified after locking - Full watchOS 4 and later support - Support iOS 9 and later spotlight search - Support Dark Mode Unit Converter: - Over 600+ units in 20 categories. - Allows you to add your own unit data, make your own unit converter that meets all your requirements. - Support more than 150 kinds of currency, conversion exchange rate automatic updates - The simplest way to create and use favorite lists. - Add the constant value of your frequently used, it can easily and quickly reused. - Flexible search feature that lets you quickly find what you want the unit and automatically saves your search history. Basic functions: - 50+ beautiful themes for you to choose - View and edit a history of your calculations on the History Panel - Multiple Button sounds, and button sound is mutable URL schemes: HCDayCalc:// Download it now and feel of this calculator is how classic

About

The Calculator Pro·

This app offers a versatile calculator with basic and scientific functions, along with unit and currency conversion. It features an intuitive design with customizable themes and the ability to edit equations. Enjoy historical records and multitasking support on compatible devices.

Highlights
  • Calculator 7 in 1
  • Scientific and basic modes
  • Unit and currency converters
  • Equation editing
  • Historical records
  • Customizable themes
Features
Read full description

Download now the best basic calculator with simple features and big buttons for your daily calculations in your iPhone or iPad. No subscriptions, it is for free. Main features: * Calculator 7 in 1 * Basic, scientific, converters for Currency, Distance, Weight, Time and Data * Choose between the Basic or Scientific mode just by rotating your device * Historical records of all your operations done in your screen * Divided view to allow multitasking (iPad) * Operate using degrees or radians * Edit ecuations * Memory bank * Themes to customize your calculator as you wish * intuitive and exclusive design EDIT EQUATION You can edit as many digits as the ones from the current equation. You can drag the cursor with your finger. LIST OF MATHEMATICAL OPERATIONS Addition, subtraction, division, multiplication and percentages Powers and roots Scientific notation Power of e, powers of base 10 and inverse powers Neperian and decimal logarithms Sine, cosine and tangent Secant, cosecant, cotangent Hyperbolic sine, hyperbolic cosine, hyperbolic and tangent Inverse function, introduction of a random or factorial number What are you waiting for to download it? It’s FREE!!!

Screenshots

DayCalc4 screens
The Calculator Pro·4 screens

Verdict

The call

The clearest difference is ads: The Calculator Pro· at none against DayCalc's shown. The Calculator Pro· also leads on iOS requirement (10.0 vs 15.0). DayCalc's advantage is update cadence (every 3 weeks vs every 3 months). On price, rating, review sentiment and ratings volume 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. DayCalc sells 4 one-off in-app purchases and The Calculator Pro· sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DayCalc holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 128 and 153 respectively. Written reviews point the same way: 87% of DayCalc's written reviews are positive against 81% of The Calculator Pro·'s.

UpkeepUpdate frequency

DayCalc ships an update every 3 weeks, The Calculator Pro· every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
DayCalc versus The Calculator Pro·: the parameters behind the verdict, then further details
ParameterDayCalcThe Calculator Pro·
PriceFreeFree
Rating4.7 (128 ratings) — better4.5 (153 ratings)
Positive reviews87.2% of reviews — better80.8% of reviews
Number of ratings128153 — better
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS15.010.0 — better
Further details — not scored
Size170 MB46 MB
Age rating4+4+
Developer良峰 侯KISSAPP, S.L.

Customer experience

DayCalc

All ratings126 ratings
Positive94.4%
Neutral1.6%
Negative4.0%
Written reviews156 reviews
Positive87.2%
Neutral3.8%
Negative9.0%

The Calculator Pro·

All ratings145 ratings
Positive89.7%
Neutral3.4%
Negative6.9%
Written reviews78 reviews
Positive80.8%
Neutral5.1%
Negative14.1%

User reviews

DayCalc

From 128 App Store ratings

What we love

  • 👍 Easy to use and convenient
  • 💯 All-in-one calculator with multiple functions
  • ✨ Customizable themes and backgrounds
  • 🧮 Supports fraction calculations
  • 📈 History and memory functions available

Room to improve

  • ⚠️ Ads can be intrusive
  • 🐛 Some users experience update issues
  • ❌ Weight conversions not always available
  • 🔊 Unwanted sound effects
  • ❓ Ad-free cost unclear for cross-platform

The Calculator Pro·

From 153 App Store ratings

What we love

  • 👍 User-friendly interface
  • 🚀 Efficient calculations
  • 👍 Easy to use
  • 👍 Convenient functionality
  • 👍 Good for daily use

Room to improve

  • 😠 Too many ads
  • 😠 Constant video ads
  • 😠 Frequent interruptions
  • 😠 Ads make it unusable
  • 😠 Percentage calculation incorrect

Bugs and requests

DayCalc

Reported bugs

16 issues
  • Update issues, stuck in update loop
  • Cannot install after removal
  • Weight conversion not showing
  • Keys making sound unexpectedly
  • App not working after professional version update
Show 11 more
  • App crashes after update
  • Stuck on updating forever
  • Calculator results in errors (e.g., 1000*10%)
  • App keeps running in the background, draining battery
  • Cannot change themes due to network error
  • Ads still appear after purchasing ad removal
  • App not opening after install
  • M+ M- bug
  • Text/numbers/symbols have underlines
  • Standard version limits typing to four digits
  • App not starting on Apple Watch

Requested features

10 requests
  • Add Pi button
  • Improve currency conversion navigation
  • iCloud support for syncing across devices
  • Add background running feature
  • Ability to change app icon
Show 5 more
  • Add more theme options
  • Allow notes to show on the main screen
  • Email entire calculation history
  • Change layout (move function buttons)
  • Allow sound to be enabled in silent mode

The Calculator Pro·

Reported bugs

2 issues
  • Percentage calculation is wrong
  • App does not show on watch

Requested features

5 requests
  • Add square multiplication key
  • Larger font size
  • Improve percentage calculation
  • Dark mode option
  • Fix watch app compatibility

In-app purchases

4 purchases

DayCalc

One-time4
  • Constants Pack$0.99
  • Custom Unit Pack$1.99
  • Remove Ads$3.99
Show 1 more
  • Complete Pack$4.99
1 purchases

The Calculator Pro·

One-time1
  • No ads$3.99

Questions

Is DayCalc free?
DayCalc is free to download, with in-app purchases available.
Is The Calculator Pro· free?
The Calculator Pro· is free to download, with in-app purchases available.
Which has better reviews, DayCalc or The Calculator Pro·?
DayCalc is rated higher. DayCalc averages 4.7 out of 5 from 128 ratings, while The Calculator Pro· averages 4.5 from 153 ratings.
Do DayCalc or The Calculator Pro· have ads?
DayCalc shows ads; The Calculator Pro· does not.
Which is updated more often, DayCalc or The Calculator Pro·?
DayCalc ships an update every 3 weeks, and The Calculator Pro· every 3 months. Most recently, DayCalc was updated on November 1, 2026 and The Calculator Pro· on November 6, 2026.

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