Comparison

Basic Calculator vs calculator HD⁻

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

Head to head
About

Basic Calculator

A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.

Highlights
  • Large, easy-to-press buttons
  • Multiple beautiful skins
  • Basic arithmetic operations
  • Standard memory functions
  • Supports large numbers (up to 60 digits)
  • Multitasking support (Split View, Slide Over)
Read full description

Calculator Free is a great free calculator with beautiful HD graphics and multiple skins! Features: - Supports multitasking on iPad devices - Split View and Slide Over features - Multiple beautiful skins - General calculations: adding, subtracting, multiplying, dividing, square-rooting - Standard memory functions: Memory Addition, Memory Subtraction, Memory Recall, Memory Clear - Thousands separators option - Can handle very large numbers - up to 60 digits! (never displays in scientific notation) - Large, easy to press buttons - Copy / Paste buttons - Key click sound effect The user interface is translated in the following languages: English, Spanish, French, Italian, German, Portuguese, Russian, Japanese, Chinese (simplified and traditional), Dutch, Norwegian, Danish, Korean, Turkish, Indonesian, Finnish, Swedish, Greek, Polish, Czech, Hungarian, Slovak, Bulgarian.

About

calculator HD⁻

A powerful and intuitive calculator app designed for simplicity and beauty. It offers a complete record of operations that can be reviewed and edited, along with scientific functions and multiple themes. Enjoy enhanced functionality with an optional subscription.

Highlights
  • Records operation process
  • Check and edit operations
  • Elegant and intuitive interface
  • Displays equation and result simultaneously
  • Supports scientific functions
  • Multiple themes
Features
Read full description

This app uses the basic functions of the calculator to make the simplest, best calculator in the app store. And it can record the operation process completely, and can check and edit at any time. Designed with simplicity, usability and beauty in mind! Elegant & Intuitive interface Displays both the equation & the result at the same time Supports many scientific functions Multiple themes Application subscription: 1. Subscription Service: Quarterly Member (3 months) 2. Subscription price: ¥18 / quarter for consecutive quarterly membership 3. Payment: After the user confirms the purchase and the payment is credited to the iTunes account 4. Apple iTunes account will deduct the fee within 24 hours before the expiration, and the subscription cycle will be extended by one after the successful deduction 5. During the subscription period, you can use all key sounds to calculate data 6. The subscription will be automatically renewed for the same price and period (one year) as before, unless the automatic renewal is closed at least 24 hours in advance before the end of the current subscription period 7. After purchase, users can manage subscription and turn off automatic renewal in account Settings. For more information please go to: http://support.apple.com/kb/ht4098" Please refer to the following links for terms of Service and Privacy policy: Privacy policy: https://cdn.40sishi.com/app/resources/jisuanqihd/privacy.html Service agreement: https://cdn.40sishi.com/app/resources/jisuanqihd/vipservice.html The price is equal to the price of a subscription in DOLLAR terms specified in Apple's App Store Pricing Table.

Screenshots

Basic Calculator4 screens
calculator HD⁻4 screens

Verdict

The call

The clearest difference is rating: Basic Calculator at 4.8 against calculator HD⁻'s 4.5. Basic Calculator also leads on review sentiment (74% vs 61%). calculator HD⁻'s advantage is iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence and ads 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. Basic Calculator sells 1 one-off in-app purchase and calculator HD⁻ sells 6 in-app purchases, starting at $2.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Basic Calculator holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 3.2K and 2.5K respectively. Written reviews point the same way: 74% of Basic Calculator's written reviews are positive against 61% of calculator HD⁻'s.

UpkeepUpdate frequency

Basic Calculator ships an update every 2 months, calculator HD⁻ every 6 weeks. Both last shipped on September 23, 2026.

Scorecard3 real differences · 7 level
Basic Calculator versus calculator HD⁻: the parameters behind the verdict, then further details
ParameterBasic Calculatorcalculator HD⁻
PriceFreeFree
Rating4.8 (3.2K ratings) — better4.5 (2.5K ratings)
Positive reviews74.3% of reviews — better61.1% of reviews
Number of ratings3.2K — better2.5K
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size93 MB97 MB
Age rating+44+
DeveloperMobArtsBeijing four time ledo Technology Co., Ltd.

Customer experience

Basic Calculator

All ratings3,192 ratings
Positive96.0%
Neutral2.5%
Negative1.5%
Written reviews70 reviews
Positive74.3%
Neutral1.4%
Negative24.3%

calculator HD⁻

All ratings2,496 ratings
Positive85.9%
Neutral3.9%
Negative10.2%
Written reviews54 reviews
Positive61.1%
Neutral1.9%
Negative37.0%

User reviews

Basic Calculator

From 3.2K App Store ratings

What we love

  • 👍 Simple and easy to use
  • 💡 Useful copy and paste functions
  • 👍 Clear and large display
  • 👍 Variety of skins/themes
  • 👍 Responsive and fast

Room to improve

  • 🐛 Compatibility issues with iOS updates
  • 🐛 Inaccurate calculations with larger numbers
  • 🔋 Slow load times
  • 🔍 Intrusive ads

calculator HD⁻

From 2.5K App Store ratings

What we love

  • 👍 Good calculator
  • 🚀 Efficient calculations

Room to improve

  • 💰 Paid features
  • 🔒 Locked to one device
  • 🐛 Calculation errors
  • 🙅‍♀️ Lack of functionality

Bugs and requests

Basic Calculator

Reported bugs

2 issues
  • Crashes or freezes after iOS updates
  • Percent key not functioning correctly

Requested features

3 requests
  • Reinstate iPhone version
  • Add scientific calculator functions
  • Improve memory retention

calculator HD⁻

Reported bugs

2 issues
  • Incorrect calculation results
  • Compatibility issues with new devices

Requested features

3 requests
  • More customization options
  • Improved user interface
  • Free version without ads

In-app purchases

1 purchases

Basic Calculator

One-time1
  • Banner Ad Removal$0.99
6 purchases

calculator HD⁻

Subscriptions2
  • auto season vip$2.993 Months
  • 连续年会员$3.991 Year
One-time4
  • 深色主题$0.99
  • 周会员$0.99
  • 高级会员$14.99
Show 1 more
  • 超级会员$14.99

Questions

Is Basic Calculator free?
Basic Calculator is free to download, with in-app purchases available.
Is calculator HD⁻ free?
calculator HD⁻ is free to download, with in-app purchases available.
Which has better reviews, Basic Calculator or calculator HD⁻?
Basic Calculator is rated higher. Basic Calculator averages 4.8 out of 5 from 3.2K ratings, while calculator HD⁻ averages 4.5 from 2.5K ratings.
Do Basic Calculator or calculator HD⁻ have ads?
Both Basic Calculator and calculator HD⁻ show ads.
Which is updated more often, Basic Calculator or calculator HD⁻?
Basic Calculator ships an update every 2 months, and calculator HD⁻ every 6 weeks. Most recently, Basic Calculator was updated on September 23, 2026 and calculator HD⁻ on September 23, 2026.

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