Comparison

HeartRate vs Calculator

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

Head to head
About

HeartRate

Features
Read full description

透過 HeartRate App 從 iPhone 健康管理內擷取出個人心率資料,將輸出的文字檔匯入 iDiary4D 人生日記軟體(專業版)來整合軌跡資料進行應用。 iDiary4D 人生日記軟體下載處: https://www.life4d.com.tw/download.aspx (App 匯出請確認並允許「HeartRate」讀取心率的權限)

About

Calculator

This portable computing assistant offers both basic and scientific calculations with a clean interface. It features a history log, currency and unit conversion, and a unique photo-based problem solver. Enjoy an ad-free experience for all your calculation needs.

Highlights
  • Basic and scientific calculations
  • Calculation history log
  • Currency and unit conversion
  • Photo math problem solver
  • Ad-free experience
Features
Read full description

Simple and efficient, your portable computing assistant A smart calculator designed specifically for iOS users that combines basic calculations with practical functions. The interface is simple and intuitive, and the operation is smooth and seamless. Whether it's daily shopping calculations, work data calculations, or student homework calculations, it can easily handle them, making calculations more efficient and convenient! Core Features Highlights *Accurate and fast basic calculations: supports basic operations such as addition, subtraction, multiplication, division, percentages, decimal points, etc., with fast input response and accurate calculation results, meeting various daily basic calculation needs. *Expanded support for scientific computing: Built in trigonometric functions (sin/cos/tan), logarithms (log/ln), square roots, power operations and other scientific computing functions, suitable for complex computing scenarios in student learning and professional work. *Clear History Record: Automatically saves the calculation process and results, making the history record clear at a glance. Supports one click clearing, making it easy to trace back the calculation steps and avoiding duplicate input. *Ad free and pure experience: No pop-up ads or push interference throughout the entire process, focusing on computing functions, bringing you a refreshing user experience. *Exchange rate conversion: Provide the latest exchange rates and real-time currency conversion. *Unit Conversion: Multiple unit conversions for length, area, and volume. *Photo Q&A: When encountering a problem that you don't know, you can get the answer by taking a photo and analyze and solve the difficult problem. 1. Payment: The user deducts the payment through their iTunes account and makes the payment upon confirmation of the purchase 2. Renewal: The user's iTunes account will be charged within 24 hours before expiration, increasing the corresponding subscription period 3. Cancel Renewal: To cancel the renewal, go to "iTunes Store and App Store" ->click on "App ID", enter the "Account Settings" page, click on "Subscription", and select "Cancel Subscription" 4.Privacy Policy: https://docs.google.com/document/d/1ghPoJCDEIL-ulLKKRGZnAT3ElLHnrByBVNcNk1-4KZw/edit?usp=sharing 5. Terms of Use: https://docs.google.com/document/d/1T0xcbyYZdcv3c67krI91k-GHwHbOz6oPvm3Aje8LNXo/edit?usp=sharing

Screenshots

HeartRate3 screens
Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: HeartRate at none against Calculator's 3. Calculator's advantage is update cadence (monthly vs every 37 months). On price, ads, device support 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 3 in-app purchases, starting at $6.00 per 7 days. HeartRate asks for nothing beyond the download.

UpkeepUpdate frequency

HeartRate ships an update every 37 months, Calculator monthly. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.

Scorecard2 real differences · 7 level
HeartRate versus Calculator: the parameters behind the verdict, then further details
ParameterHeartRateCalculator
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 37 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size10 MB48 MB
Age rating4+9+
DeveloperRITI Technology Inc.欣博 周

In-app purchases

None

HeartRate

No in-app purchases

3 purchases

Calculator

Subscriptions1
  • Weekly Member3 Days trial$6.007 Days
One-time2
  • Monthly Membership$12.00
  • annual membership$28.00

Questions

Is HeartRate free?
HeartRate is free to download, with no in-app purchases.
Is Calculator free?
Calculator is free to download, with in-app purchases available.
Do HeartRate or Calculator have ads?
Neither HeartRate nor Calculator shows ads.
Which is updated more often, HeartRate or Calculator?
HeartRate ships an update every 37 months, and Calculator monthly. Most recently, HeartRate was updated on October 26, 2026 and Calculator on October 23, 2026.

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