Cathy's Calculator for iPad vs multiple operation calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cathy's Calculator for iPad
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This is 100% free with no ads, no tracking, no permissions, and no logins. Made for people who remember the 80's, this features large buttons and is easy to use. Arithmetic is precise and where approximation is used (e.g. sqrt), the equals sign is replaced with a squigle-equals. There is a command history with scrollback, meant to feel like the old ribbon printers. You can copy a number to the clipboard by tapping on it. This calculator was made for my mother, Catherine.
multiple operation calculator
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A calculator that calculates and displays four arithmetic operations and free time at the same time.
Screenshots
Verdict
The clearest difference is ads: Cathy's Calculator for iPad at none against multiple operation calculator's shown. multiple operation calculator's advantage is update cadence (every 2 weeks vs every 38 months) and device support (3 vs 1). On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cathy's Calculator for iPad ships an update every 38 months, multiple operation calculator every 2 weeks. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.
| Parameter | Cathy's Calculator for iPad | multiple operation calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 38 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.4 — better | 15.8.3 |
| Further details — not scored | ||
| Size | 1 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Sanjay Rao | Hideaki Uchikoshi |
In-app purchases
Cathy's Calculator for iPad
No in-app purchases
multiple operation calculator
No in-app purchases
Questions
Is Cathy's Calculator for iPad free?
Is multiple operation calculator free?
Do Cathy's Calculator for iPad or multiple operation calculator have ads?
Which is updated more often, Cathy's Calculator for iPad or multiple operation calculator?
Other comparisons
