Calculator vs SPMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
This comprehensive utility app consolidates numerous calculators for scientific, health, date, and unit conversions. It offers a wide array of tools, from basic arithmetic to complex calculations and timers, all within a single application. No internet connection is required for its built-in functions.
- 33+ diverse calculator functions
- Scientific, health, and date calculators
- Unit and numerical system converters
- Timers and clocks
- Offline functionality
- Mathematical competition game
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This is the App that you need: all calculations in one App !!!! In this App are gathered all the applications that you need to perform almost any calculation: 33 different functions: Numeric Calculators: - 4 Scientific (different functions, buttons sizes, colors, etc ..) - Chemicals - Functional - Conversion numerical systems (comprehensive) - Complex numbers - Random series generator - Prime Numbers Timers - Timer Up&Down - Pomodoro - Countdown - Milliseconds Timer - Sphere Clock - World Clock Health Related Calculators: - Optimal calories you need - Body Mass Index - Analysis of alchool in your body after taking a few drinks - Calories burned after running - Analysis of the composition of the salads that you take Calculators and Unit Conversion Physical: - Unit Converter. (comprehensive) - Temperature Converter - Calculation of the wind chill - 2 Periodic Tables - Resistor Calculator Calculators Dates: - Perpetual calendar (Julian and Gregorian) - Difference between dates - Zodiac sign and Chinese year - Your exact age - Your age in years doggy Other Calculators - Payment of loans and mortgages - Mathematical competition (Great for kids) - Compatibility test for couples - Current population of the earth - Fractal generator - Geographic Coordinates to UTM Converter Now you do not need a lot of applications to perform different calculations. Almost everything you need calculate is in this App!!!! No Wi-Fi connection needed. Built-in data. The app is completely free. Donation to improve and mantein the app will be welcome. Thanks.
SPMS
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Verdict
The clearest difference is in-app purchases: SPMS at none against Calculator's 2. SPMS also leads on iOS requirement (8.1 vs 26.1). Calculator's advantage is update cadence (every 4 months vs every 11 months). On price, ads 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. Calculator sells 2 one-off in-app purchases. SPMS asks for nothing beyond the download.
Calculator ships an update every 4 months, SPMS every 11 months. The most recent releases landed on October 20, 2026 and October 26, 2026 respectively.
| Parameter | Calculator | SPMS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 26.1 | 8.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Juan Fullana | Advantech |
In-app purchases
Calculator
- Donation + 1 Extra day. Thanks$0.99
- No time limit$1.99
SPMS
No in-app purchases
