Comparison

EYSK Calculator & Converter vs Math Sphere

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Math Sphere

Features
Read full description

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.

Screenshots

EYSK Calculator & Converter4 screens
Math Sphere3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
EYSK Calculator & Converter versus Math Sphere: the parameters behind the verdict, then further details
ParameterEYSK Calculator & ConverterMath Sphere
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size3 MB25 MB
Age rating4+4+
DeveloperKiseon Chootsuki hayato

In-app purchases

None

EYSK Calculator & Converter

No in-app purchases

None

Math Sphere

No in-app purchases

Questions

Is EYSK Calculator & Converter free?
EYSK Calculator & Converter is free to download, with no in-app purchases.
Is Math Sphere free?
Math Sphere is free to download, with no in-app purchases.
Do EYSK Calculator & Converter or Math Sphere have ads?
Neither EYSK Calculator & Converter nor Math Sphere shows ads.
Which is updated more often, EYSK Calculator & Converter or Math Sphere?
EYSK Calculator & Converter ships an update every 5 days, and Math Sphere every 3 weeks. Most recently, EYSK Calculator & Converter was updated on November 7, 2026 and Math Sphere on October 30, 2026.

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