EYSK Calculator & Converter vs Math Sphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EYSK Calculator & Converter
This app offers a powerful yet simple calculator with a clean interface for iOS devices. It provides mathematical, scientific, and conversion functions, with real-time result updates and support for multi-step expressions. Customize your experience with seven color options.
- Intuitive and smart calculator
- Mathematical, scientific, and conversion functions
- Real-time result updates
- Support for multi-step expressions
- Four practical tabs: General, Advanced, Constants, and Convert
- Customizable color options
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EYSK Cal brings a wide range of mathematical functions to iOS in a simple, easy-to-use calculator. Key Features - An intuitive, smart calculator that’s easy to use - A clean, simple interface - Mathematical, scientific, and conversion functions - A polished layout for expressions, results, and controls - Convenient, versatile calculation controls - Results update in real time as you type - A blinking cursor for easier input and editing - Four practical tabs: General, Advanced, Constants, and Convert - Shared expressions and results across all tabs - Support for multi-step expressions, such as 123 + 456 × 789 ÷ 321 + 123 - Reuse stored results with the M0–M4 text buttons on the left - Copy stored results to the clipboard with the circular M0–M4 buttons on the right - A wide range of functions within each category - Seven color options for the main text - Customization options to suit your preferences
Math Sphere
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Math Sphere is a smart, user-friendly calculator app that handles everything from everyday basic math to the complex functions you need for school or work. Its clean, simple design makes it easy for anyone, from students to adults, to use intuitively and makes even the toughest calculations feel approachable.
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Verdict
The clearest difference is update cadence: EYSK Calculator & Converter at every 5 days against Math Sphere's every 3 weeks. Math Sphere's advantage is iOS requirement (13.0 vs 17.0). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
EYSK Calculator & Converter ships an update every 5 days, Math Sphere every 3 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.
| Parameter | EYSK Calculator & Converter | Math Sphere |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Kiseon Cho | otsuki hayato |
In-app purchases
EYSK Calculator & Converter
No in-app purchases
Math Sphere
No in-app purchases
Questions
Is EYSK Calculator & Converter free?
Is Math Sphere free?
Do EYSK Calculator & Converter or Math Sphere have ads?
Which is updated more often, EYSK Calculator & Converter or Math Sphere?
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