AddCalc PRO vs Formalize
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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 [%] [=]
Formalize
Type mathematical equations and symbols directly on your iPhone or iPad. This keyboard extension offers intuitive one-handed access to over 100 symbols, producing professionally typeset formulas. Easily export your creations as PNG or TeX to use in any app.
- Mathematical keyboard extension
- Over 100 symbols
- One-handed operation
- Professionally typeset formulas
- PNG export
- TeX export
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Do you wish you could properly type math on your iPhone or iPad? With Formalize, you can! Formalize is a keyboard extension for mathematical content. It provides intuitive one-handed access to more than 100 symbols and produces professionally typeset formulas. Easily convert your formulas to PNG or TeX and insert them anywhere, in any app!
Screenshots
Verdict
The clearest difference is review sentiment: AddCalc PRO at 86% against Formalize's 25%. AddCalc PRO also leads on update cadence (every 6 weeks vs every 9 months) and price ($0.99 vs $1.99). Formalize's advantage is iOS requirement (12.0 vs 15.6). On ads, in-app purchases, monetization model 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
AddCalc PRO costs $0.99 and Formalize $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AddCalc PRO ships an update every 6 weeks, Formalize every 9 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | AddCalc PRO | Formalize |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | — | 2.6 (10 ratings) — better |
| Positive reviews | 85.7% of reviews — better | 25.0% of reviews |
| Number of ratings | — | 10 — better |
| Update frequency | Every 6 weeks — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Shinichi Aokawa | Ben Hambrecht |
Customer experience
AddCalc PRO
Formalize
In-app purchases
AddCalc PRO
No in-app purchases
Formalize
No in-app purchases








