Comparison

addition calc vs TapMailer2

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

Head to head
About

addition calc

This calculator app clearly displays inputs and sums on separate rows for easy understanding. Perform basic arithmetic operations with large, accessible buttons. Customize decimal places and rounding for precise calculations.

Highlights
  • Separate input and sum display
  • Large buttons for easy input
  • Supports four input operations
  • Customizable decimal places
  • Adjustable rounding settings
  • Optional vibration feedback
Features
Read full description

The input (lower row) and the sum (upper row) are separated, so you can always understand the answer. How to use is simple, just enter the numbers and press the add button. Four input operations can be performed on the input (lower row), and the results can be added. You can set the total number of decimal places and rounding. You can also activate the vibrator when you touch the iPhone.

About

TapMailer2

Read full description

TapMailer lets you send emails quickly with just a tap. - Can send Mail, Message(SMS) in just two taps. - You can also make HTML emails with bold, red text, and more. - Destination (to, cc, bcc) can register multiple addresses. - You can quickly open the send screen from the widget placed on the home screen. - You can send emails from your Apple Watch. *** Subscription (Auto-Renewable Subscriptions) *** A subscription registration is required to use TapMailer. You can try it for free for the first time only for one month. After the free period ends, the billing for the subscription will start automatically. - Automatic renewal of contract period If the contract is not canceled more than 24 hours before the end date of the contract, the contract period will be automatically renewed. Billing for automatic renewal will be charged within 24 hours after the end of the contract period. - Restore subscription If you reinstall the app, you can restore your subscription. - Cancellation of contract You can cancel your subscription by "Subscription management" button. - Caution You will be charged via your iTunes account. The renewed contract cannot be canceled. No refund will be given if canceled during the contract period. - Terms of use https://tapmailer-2.jimdofree.com/termsofuseen/ - privacy Policy https://tapmailer-2.jimdofree.com/privacypolicyen/

Screenshots

addition calc4 screens
TapMailer24 screens

Verdict

The call

The clearest difference is in-app purchases: addition calc at none against TapMailer2's 1. addition calc also leads on iOS requirement (9.3 vs 15.0). TapMailer2's advantage is device support (5 vs 3). On price, update cadence and ads there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. TapMailer2 sells 1 in-app purchase, starting at $0.99 per month. addition calc asks for nothing beyond the download.

UpkeepUpdate frequency

addition calc ships an update monthly, TapMailer2 every 2 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard3 real differences ยท 5 level
addition calc versus TapMailer2: the parameters behind the verdict, then further details
Parameteraddition calcTapMailer2
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyMonthly โ€” betterEvery 2 months
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationFreeโ€”
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac, Apple Watch โ€” better
Requires iOS9.3 โ€” better15.0
Further details โ€” not scored
Size13 MB38 MB
Age rating4+4+
DeveloperShozo Obayashiynose apps

In-app purchases

None

addition calc

No in-app purchases

1 purchases

TapMailer2

Subscriptions1
  • TapMailer2 subscription1 Month trial$0.991 Month

Questions

Is addition calc free?
addition calc is free to download, with no in-app purchases.
Is TapMailer2 free?
TapMailer2 is free to download, with in-app purchases available.
Do addition calc or TapMailer2 have ads?
Neither addition calc nor TapMailer2 shows ads.
Which is updated more often, addition calc or TapMailer2?
addition calc ships an update monthly, and TapMailer2 every 2 months. Most recently, addition calc was updated on November 2, 2026 and TapMailer2 on November 7, 2026.

Other comparisons