Calculator & Converter vs Math Sphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator & Converter
This app offers a powerful yet simple calculator and converter for iOS users. It features a clean interface with real-time calculation results and supports advanced mathematical and scientific functions. Customize your experience with color options and efficient memory functions.
- Intelligent calculator with simple interface
- Supports mathematics, scientific, and converter functions
- Real-time calculation results display
- Memory functions (M0-M4) for reusing results
- Organized into four efficient tabs
- Customizable primary text colors
Read full descriptionHide full description
EYSK Cal supports various mathematics functions that are simple and easy to use in iOS environments. Overall features are, - Incredibly easy-to-use and intelligent calculator - Simple Interface - Supports mathematics functions, scientific functions, and converter functions - Elaborate and neat UI for input, output, and user controls - Convenient and versatile control functions - Calculation result real-time displayed as you input - Blinking cursor for improved usability - Organized into four efficient tabs with valuable features (General, advanced, Constant, and Convert) - Inputs and results are shared across all categories. - Supports continuous input (c.f, 123 + 456 x 789 ÷ 321 + 123 than 500.518) - Reuse the previous results using M0 ~ M4 memory left side Text Buttons - Copied to the clipboard using M0 ~ M4 memory right side Circle Buttons - Supports various kinds of mathematics functions in each sub-functions - Seven colors can be changed for the primary text - Provided the options for customizer
Math Sphere
Read full descriptionHide 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
Verdict
The clearest difference is update cadence: Calculator & Converter at every 4 days against Math Sphere's every 3 weeks. Math Sphere's advantage is iOS requirement (13.0 vs 15.3). 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.
Calculator & Converter ships an update every 4 days, Math Sphere every 3 weeks. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.
| Parameter | Calculator & Converter | Math Sphere |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.3 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Kiseon Cho | otsuki hayato |
In-app purchases
Calculator & Converter
No in-app purchases
Math Sphere
No in-app purchases
Questions
Is Calculator & Converter free?
Is Math Sphere free?
Do Calculator & Converter or Math Sphere have ads?
Which is updated more often, Calculator & Converter or Math Sphere?
Other comparisons
