Comparison

ACalcM vs PrimeCalc

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

Head to head
About

ACalcM

This calculator app enhances standard functionality with an editable list to track numbers and operators. It allows for easy modification of entries, row insertion, and calculation sharing via email. Advanced features include memory functions, rounding options, and design customization.

Highlights
  • Editable calculation list
  • Memory function
  • Row insert function
  • Email calculation results
  • Rounding function
  • Design customization
Features
Read full description

This app is an extended version of ACalc. This calculator app features a list. The numbers and operators you use remain in the list and can be independently edited or added. Swipe the button to the right to change its position. In-App Purchases: (iPhone) available in three lists by deleting the ad. It will be possible to activate the "multifunctional" in the settings screen. Design changes. Addition of functions such as % button and single digit delete button. Diversification of design customization. [Features explained] Memory function -------------------------------------------------------- Using the memory function allows the following calculations: For example, When performing the function (250×100)+(350×100) Typing 300×8 [M+] button 400×8 [M+] button 800×8 [M+] button -------------------------------------------------------- Row insert function -------------------------------------------------------- Long tap on a cell to insert a row E-mail function(Swipe up the screen from the bottom) -------------------------------------------------------- Allows you to e-mail content shown onscreen. Choose from text e-mails or picture e-mails. Rounding function -------------------------------------------------------- If choosing to use rounding, the final figure is not rounded – instead, each line is rounded when calculating. Example: If typing 1,450×0.75×2, If specifying 0 places after the decimal point with 5/4 rounding: 1,450×0.75=1,088 1,088×2=2,176 When set to F (maximum displayable) 1,450×0.75=1,087.5 1,087.5×2=2,175

About

PrimeCalc

Features
Read full description

--- PrimeCalc feature --- ■ Normal arithmetic operation (×, /, +, -) is available. ■ prime: integer calculation (Division remainder ÷, prime factorization p) can be done. (You can also exponentiate.) ■ auto: Automatic calculation, memory storage, history recording is possible. ■ global: Digit display of countries around the world is possible. (千、万、億、兆、京、垓、・・・) ■ iPhone / iPad is available. Free. We are displaying advertisements. Caution) In case of large number, calculation error etc. may occur. Please use it together with other calculator. If you have comments, questions, etc., please email or bulletin board. http: //www.eonet.ne.jp/~treechart/

Screenshots

ACalcM2 screens
PrimeCalc1 screens

Verdict

The call

The clearest difference is in-app purchases: PrimeCalc at none against ACalcM's 1. PrimeCalc also leads on update cadence (every 5 weeks vs every 8 months) and iOS requirement (12.0 vs 15.6). On price, ads and device support 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. ACalcM sells 1 one-off in-app purchase. PrimeCalc asks for nothing beyond the download.

UpkeepUpdate frequency

ACalcM ships an update every 8 months, PrimeCalc every 5 weeks. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
ACalcM versus PrimeCalc: the parameters behind the verdict, then further details
ParameterACalcMPrimeCalc
PriceFreeFree
Rating5.0 (26 ratings) — better—
Positive reviews90.0% of reviews—
Number of ratings26 — better—
Update frequencyEvery 8 monthsEvery 5 weeks — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size13 MB12 MB
Age rating4+4+
DeveloperAsoft.iOSYutaka Nakao

In-app purchases

1 purchases

ACalcM

One-time1
  • Remove Ads$3.99
None

PrimeCalc

No in-app purchases

Questions

Is ACalcM free?
ACalcM is free to download, with in-app purchases available.
Is PrimeCalc free?
PrimeCalc is free to download, with no in-app purchases.
Do ACalcM or PrimeCalc have ads?
Both ACalcM and PrimeCalc show ads.
Which is updated more often, ACalcM or PrimeCalc?
ACalcM ships an update every 8 months, and PrimeCalc every 5 weeks. Most recently, ACalcM was updated on September 23, 2026 and PrimeCalc on September 10, 2026.

Other comparisons