Comparison

AddCalc PRO vs Nixie Calculator

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

Head to head
About

AddCalc PRO

This calculator app offers both standard and adder calculation modes, with customizable themes, sounds, and editing features. It allows for easy copying of logs and totals, and supports various calculation functions for accounting and everyday use.

Highlights
  • Dual calculator modes (adder and standard)
  • Customizable button design, background, and brightness
  • Selectable sound effects
  • Input log editing and recalculation
  • Voice reading of input log
  • Copy log and total functionality
  • Decimal point and rounding switching
Features
Read full description

Do you know the calculator of optimal adder method for an accounting calculation? (with the calculation method change function) Try it on iPhone and iPad you always carry around. 【Feature】 - This can switch an "adder calculator" and "ordinary calculator" - The design of a button can be chosen - The regulating function of a background color and brightness - Select your favorite sound from sound effects - Input log editing + recalculation function - Voice reading of the input log - Copy the log and total (paste to memo etc) - Display switching function digit after the decimal point (FULL · 0 ~ 6 digits) - The (up-truncation Ri rounded-off) Rounding switching function - 14 Number of significant digits - Always display "GT:Grand Total" - Always display "MR:Memory" - BS:BackSpace function 【How to use an adder calculator】 ”(10×10)+(5×5)-(6×5)=95” 10 [×] 10 [+=] 5 [×] 5 [+=] 6 [×] 5 [-] [GT] (10×10)Add(5×5)Add(6×5)Pull % Calculation example : 500 + (500 × 12%) = 560 500 [+=] 12 [%] [+=] 【How to use an ordinary calculator】 ”(10×10)+(5×5)-(6×5)=95” 10 [×] 10 [=][M+] 5 [×] 5 [=][M+] 6 [×] 5 [=] [M-][MR] Added to the Grand Total by "=" The continuous input will be "10×10+5×5-6×5=2595" % Calculation example : 500 + (500 × 12%) = 560 500 [+] 12 [%] [=]

About

Nixie Calculator

This calculator app features a digital paper tape to display entries, which can be copied or shared. It offers various customization options like color schemes, rounding, and display modes, blending retro aesthetics with modern device technology.

Highlights
  • Paper tape for entry display
  • Copy and paste functionality
  • Customizable color schemes
  • Adjustable rounding and exponential modes
  • Classic Nixie font option
  • Thousand separator styles
Read full description

Features of Nixie Calculator: • Paper tape to display what you have entered. Can be copied or shared • Copy and paste entries Settings available: • Color schemes • Color layouts (in-app purchase) • Rounding options • Exponential modes • Use classic Nixie font for the display • Separators embedded with the digits • Classic pyramid and illuminated thousand separators • Classic red filter The calculator is a rounding or truncating type to fit numbers into the fixed display. Please enjoy this calculator that combines one of the first display technologies with state of the art in phone and tablet technology.

Screenshots

AddCalc PRO4 screens
Nixie Calculator4 screens

Verdict

The call

The clearest difference is price: Nixie Calculator at Free against AddCalc PRO's $0.99. AddCalc PRO's advantage is in-app purchases (none vs 1) and review sentiment (86% vs 67%). On update cadence, 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

Nixie Calculator is free to download; AddCalc PRO costs $0.99 up front. Nixie Calculator sells 1 one-off in-app purchase. AddCalc PRO asks for nothing beyond the download.

UpkeepUpdate frequency

AddCalc PRO ships an update every 6 weeks, Nixie Calculator monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
AddCalc PRO versus Nixie Calculator: the parameters behind the verdict, then further details
ParameterAddCalc PRONixie Calculator
Price$0.99Free — better
Rating—4.9 (15 ratings) — better
Positive reviews85.7% of reviews — better66.7% of reviews
Number of ratings—15 — better
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size4 MB36 MB
Age rating4+4+
DeveloperShinichi AokawaUNB SYSTEMS PTY LTD

Customer experience

AddCalc PRO

Written reviews14 reviews
Positive85.7%
Neutral7.1%
Negative7.1%

Nixie Calculator

All ratings13 ratings
Positive92.3%
Neutral7.7%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

AddCalc PRO

No in-app purchases

1 purchases

Nixie Calculator

One-time1
  • Color Layouts$2.99

Questions

Is AddCalc PRO free?
AddCalc PRO costs $0.99, with no in-app purchases.
Is Nixie Calculator free?
Nixie Calculator is free to download, with in-app purchases available.
Do AddCalc PRO or Nixie Calculator have ads?
Neither AddCalc PRO nor Nixie Calculator shows ads.
Which is updated more often, AddCalc PRO or Nixie Calculator?
AddCalc PRO ships an update every 6 weeks, and Nixie Calculator monthly. Most recently, AddCalc PRO was updated on October 26, 2026 and Nixie Calculator on October 24, 2026.

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