Calculator vs P.M.M.D Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
This is a straightforward calculator application designed for ease of use and clear readability. Users can personalize the app's appearance by choosing their preferred background and display themes.
- Easy to use interface
- Clear display
- Customizable background
- Customizable display themes
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Calculator-- is a simple calculator that is easy to use and read. Select the desired background and display. If you like this app, please consider giving it a rating. Your support will help keep the updates coming! Thank you for your support!
P.M.M.D Calculator
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P.M.M.D Calculator makes division, multiplication, addition and subtraction steps quickly and easily. Easy to understand. Perfect for teachers, students, or anyone who wants to learn or prepare math exercises. Features: • Clean, easy-to-use interface. • Instant calculation results. • Copy answers into other apps. • Save results as an image directly to your camera roll. • Customize font type, text color, and background color. • Option to show or hide calculation steps [Plus/Minus]. • Option to show or hide the remainder [Division]. • Option to show or hide the plus sign in calculations [Multiplication]. This app is great for: Teachers & Educators – Create math materials and examples instantly Students – Practice and understand plus/minus/multiplication/division operations step by step Parents – Quickly check kids’ homework with ease Make learning and teaching math simpler with P.M.M.D Calculator. Simplify math practice and make division, multiplication, addition and subtraction easier with P.M.M.D Calculator. Thanks for your support! Visit nitrio.com for more great apps for your iOS devices.
Screenshots
Verdict
The clearest difference is price: Calculator at Free against P.M.M.D Calculator's $3.99. Calculator also leads on rating (4.7 vs 1.0) and ratings volume (916 vs 1). P.M.M.D Calculator's advantage is ads (none vs shown) and iOS requirement (13 vs 15.0). On update cadence, in-app purchases 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
Calculator is free to download; P.M.M.D Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calculator holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Calculator has 916 ratings behind it against 1, so its average is the more settled of the two.
Calculator ships an update every 13 months, P.M.M.D Calculator every 22 months. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.
| Parameter | Calculator | P.M.M.D Calculator |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.7 (916 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 79.8% of reviews | — |
| Number of ratings | 916 — better | 1 |
| Update frequency | Every 13 months — better | Every 22 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13 — better |
| Further details — not scored | ||
| Size | 11 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Horizon Business, Inc. | Heng Jia Liang |
Bugs and requests
Calculator
Reported bugs
2 issues- Sound toggle switch doesn't work to turn off sounds
- App crashes or freezes on some devices
Requested features
3 requests- Add percentage and other advanced math functions
- Allow landscape mode
- Add option to turn off button sounds
P.M.M.D Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator
No in-app purchases
P.M.M.D Calculator
No in-app purchases
Questions
Is Calculator free?
Is P.M.M.D Calculator free?
Which has better reviews, Calculator or P.M.M.D Calculator?
Do Calculator or P.M.M.D Calculator have ads?
Which is updated more often, Calculator or P.M.M.D Calculator?
Other comparisons
