Comparison

Calculator Plus #1 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

Calculator Plus #1

A straightforward calculator app designed for everyday math, school, budgeting, and shopping. It offers essential functions, a clear interface with large buttons, and a history log for reviewing past calculations. Advanced features include memory functions, percentage calculations, and multi-window support for efficient workflow.

Highlights
  • Basic arithmetic operations
  • Calculation history
  • Memory function
  • Percentage calculations
  • Large buttons and display
  • Customizable themes
  • Multi-window mode
Features
Read full description

All-in-one basic calculator app for iPhone and iPad. Calculator Plus combines a basic calculator and a scientific one, percentage and tax calculator, financial and date calculator, currency and unit converter in one easy-to-use app. Stop switching between multiple calculator apps. Calculate faster, stay organized, and get accurate results with Calculator Plus. * Looking for a basic calculator with history and memory? * Calculator Plus automatically saves calculations so you can review results, continue calculations later, compare numbers, track expenses, and avoid repeating work. * Need a scientific calculator for school, engineering, or advanced math?* Use logarithms, trigonometric functions, exponents, algebra, scientific formulas, parentheses, and multi-step equations in one powerful calculator. * Need a percentage calculator while shopping? * Whether you’re asking “How much is 20% off?” or “What tip should I leave?”, Calculator Plus delivers accurate answers. Quickly calculate discounts, sales tax, tips, markups, profit margins, percentage increases, and percentage decreases. * Looking for a budgeting and finance calculator? * Track expenses, calculate bills, compare prices, plan budgets, and organize calculations with notes and history. * Need a currency converter and calculator in one app? * Convert currencies and measurement units while performing calculations - ideal for travel, shopping, business, and everyday use. * “How many days until my trip?” * Need a date calculator? Count days, calculate age, track deadlines, plan vacations, and manage important events. * Calculator Widget * Add the widget to your home screen for instant access. * Notes and Saved Calculations * Attach notes to saved calculations to organize expenses, transactions, tax records, budget plans, and currency conversions. * Perfect for: * — Everyday calculations — Scientific calculations and algebra for students — Shopping discounts and percentages — Budgeting, bills, and expenses — Tax and financial calculations — Currency and unit conversion — School homework and study — Multi-step equations with history — Date, age, and days calculations * Why Do Users Choose Calculator Plus? * Many calculator apps focus on only one task. Calculator Plus combines a scientific calculator, financial calculator, percentage calculator, tax calculator, currency converter, unit converter, date calculator, notes, history, widget, and multi-window support in one app. * Who Is Calculator Plus Designed For? * — Students and schoolchildren — Engineers and technical professionals — Business owners and freelancers — Finance professionals — Travellers and shoppers — Families managing household budgets Whether you need a calculator for budgeting, taxes, shopping, school, business, travel, engineering, or everyday math, Calculator Plus gives you all the tools you need in one app.

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

Calculator Plus #14 screens
calculator HD⁻4 screens

Verdict

The call

The clearest difference is review sentiment: Calculator Plus #1 at 89% against calculator HD⁻'s 61%. Calculator Plus #1 also leads on rating (4.8 vs 4.5) and update cadence (every 5 weeks vs every 3 months). On price, ratings volume, 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. Calculator Plus #1 sells 7 in-app purchases, starting at $0.99 per month 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

Calculator Plus #1 holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 5.1K and 2.5K respectively. Written reviews point the same way: 89% of Calculator Plus #1's written reviews are positive against 61% of calculator HD⁻'s.

UpkeepUpdate frequency

Calculator Plus #1 ships an update every 5 weeks, calculator HD⁻ every 3 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Calculator Plus #1 versus calculator HD⁻: the parameters behind the verdict, then further details
ParameterCalculator Plus #1calculator HD⁻
PriceFreeFree
Rating4.8 (5.1K ratings) — better4.5 (2.5K ratings)
Positive reviews88.5% of reviews — better61.1% of reviews
Number of ratings5.1K — better2.5K
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1515.0
Further details — not scored
Size157 MB98 MB
Age rating4+4+
DeveloperDigitAlchemy LLCBeijing four time ledo Technology Co., Ltd.

Customer experience

Calculator Plus #1

All ratings5,067 ratings
Positive97.2%
Neutral1.5%
Negative1.3%
Written reviews1,306 reviews
Positive88.5%
Neutral3.0%
Negative8.5%

calculator HD⁻

All ratings2,509 ratings
Positive85.9%
Neutral3.9%
Negative10.2%
Written reviews54 reviews
Positive61.1%
Neutral1.9%
Negative37.0%

User reviews

Calculator Plus #1

From 5.1K App Store ratings

What we love

  • 🚀 Great calculator
  • 👍 Easy to use
  • 👍 Looks very nice
  • 👍 Reliable and dependable
  • 👍 Useful features like memory

Room to improve

  • 🐛 Ads disrupt calculations
  • 🐛 Too many ads
  • 🐛 Ads pop up in the middle of calculations

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

Calculator Plus #1

Reported bugs

2 issues
  • App crashes or doesn't open
  • Ads still show up even after paying to remove them

Requested features

3 requests
  • Add brackets/parentheses for arithmetic operations
  • Improve arithmetic operator priority
  • Add more algebraic and trigonometric functions

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

7 purchases

Calculator Plus #1

Subscriptions4
  • Calculator with History7 Days trial$0.991 Month
  • Calculator with History7 Days trial$1.491 Month
  • Simple Calculator - No Ads7 Days trial$6.291 Year
Show 1 more
  • Simple Calculator - No Ads7 Days trial$8.991 Year
One-time3
  • Remove ads$3.99
  • Multiple Basic Calculations$8.99
  • Multiple Basic Calculations$12.99
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 Calculator Plus #1 free?
Calculator Plus #1 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, Calculator Plus #1 or calculator HD⁻?
Calculator Plus #1 is rated higher. Calculator Plus #1 averages 4.8 out of 5 from 5.1K ratings, while calculator HD⁻ averages 4.5 from 2.5K ratings.
Do Calculator Plus #1 or calculator HD⁻ have ads?
Both Calculator Plus #1 and calculator HD⁻ show ads.
Which is updated more often, Calculator Plus #1 or calculator HD⁻?
Calculator Plus #1 ships an update every 5 weeks, and calculator HD⁻ every 3 months. Most recently, Calculator Plus #1 was updated on November 1, 2026 and calculator HD⁻ on October 29, 2026.

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