Basic Calculator Pro vs Obelus Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Basic Calculator Pro
This app provides a straightforward calculation system, focusing on essential functions without complex engineering features. It offers a clean design, calculation history, and displays current modifications for ease of use.
- Basic calculation system
- Calculation history
- Intuitive design
- Shows present modifications
- No ads
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'3.0 Fun design applied' Focusing on the most basic calculation system This calculator is focused on the most basic calculation system than other calculator apps. Excluded engineering calculations. It shows present modifications. It provides calculation history. This is for common people using in the most easy ways. It is available for people seeking the simplest method. Basic Calc Pro for iPad - No Add - Calculation history - Universal app - Intuitive design - Able to see present modifications Think Human Designed by SuperDG
Obelus Calculator
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Obelus is a simple app that lets you easily split meal costs with friends. Just snap a photo of the receipt, and it automatically calculates each item, including tax and tip. No more overpaying or complex calculations – Obelus makes dining out and sharing bills straightforward and fair.
Screenshots
Verdict
The clearest difference is price: Obelus Calculator at Free against Basic Calculator Pro's $1.99. Obelus Calculator also leads on update cadence (weekly vs every 3 months). Basic Calculator Pro's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On ads and in-app purchases 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
Obelus Calculator is free to download; Basic Calculator Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Basic Calculator Pro ships an update every 3 months, Obelus Calculator weekly. The most recent releases landed on October 2, 2026 and September 10, 2026 respectively.
| Parameter | Basic Calculator Pro | Obelus Calculator |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.8 (699 ratings) — better | — |
| Positive reviews | 89.8% of reviews | — |
| Number of ratings | 699 — better | — |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 23 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | SuperDG Inc. | Chris Wang |
Bugs and requests
Basic Calculator Pro
Reported bugs
2 issues- Numpad enter key not working on Mac
- Screen moving up/down when typing one-handed on iPhone
Requested features
4 requests- Dark mode option
- Ability to edit past calculations
- Split-screen support on iPad
- Customizable button colors
Obelus Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Basic Calculator Pro
No in-app purchases
Obelus Calculator
No in-app purchases
Questions
Is Basic Calculator Pro free?
Is Obelus Calculator free?
Do Basic Calculator Pro or Obelus Calculator have ads?
Which is updated more often, Basic Calculator Pro or Obelus Calculator?
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