Octuple Calc vs iBigCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Octuple Calc
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Display eight calculators and perform calculations with each one.
iBigCalc
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Elevate your daily calculations with the Simple and Smart Calculator. Designed for those who value efficiency and clarity, our app provides a seamless experience for all your mathematical needs. Whether you’re a student, professional, or just need to split a bill, our intuitive interface ensures you get accurate results instantly without any unnecessary clutter. Key Features: + Clean UI: A minimalist design that stays out of your way. + Smart History: Easily track and reuse your previous calculations. + Precision & Speed: Fast processing for both basic and complex math. Simple to use, smart in performance. Download now and make math effortless!
Screenshots
Verdict
The clearest difference is iOS requirement: Octuple Calc at 15.8.3 against iBigCalc's 17. On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Octuple Calc ships an update every 2 weeks, iBigCalc every 3 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.
| Parameter | Octuple Calc | iBigCalc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.8.3 — better | 17 |
| Further details — not scored | ||
| Size | 36 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | Manh Phi Nguyen |
In-app purchases
Octuple Calc
No in-app purchases
iBigCalc
No in-app purchases
Questions
Is Octuple Calc free?
Is iBigCalc free?
Do Octuple Calc or iBigCalc have ads?
Which is updated more often, Octuple Calc or iBigCalc?
Other comparisons
