Comparison

Calculator vs VoltSize

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

Head to head
About

Calculator

Features
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Calculator- scientific: Your Comprehensive Math Powerhouse Calculator- scientific is a powerful calculation suite designed for home, school, and office. Featuring a robust math parser, it delivers precise results across a wide range of functions and specialized modes. Six Powerful Calculation Modes: Main View: Access memory, power, square root, logarithmic, factorial, floor, ceil, random, and over 30 trigonometric functions. Simply input your formula and evaluate. Programmer View: Perform conversions between DEC, BIN, HEX, OCT systems and execute various masking operations. Statistics View: Calculate median, standard deviation, and generate random numbers. IP Subnet View: Quickly compute subnets from any given IP address. Converter View: Convert values effortlessly between units of length, area, volume, mass, time, and many more. Matrix View: Execute complex matrix calculations including determinant, inverse, and matrix multiplication. Core Features: Advanced Math Parser: Utilizes DDMathParser for accurate and reliable calculations. Intuitive Interface: Navigate easily with a convenient slide-out sidebar menu. Calculator- scientific is the ultimate tool for students, professionals, and anyone needing a versatile and precise calculator. Download now to elevate your computations!

About

VoltSize

Features
Read full description

VoltSize is a complete calculation and planning toolkit for anyone building a solar power system. CALCULATORS - Panel Sizing: how many watts of panels you need based on your daily consumption - Battery Capacity: compare LiFePO4, AGM, Gel and other battery types - Inverter Sizing: find the right inverter power with a safety margin - Cable Gauge: pick the right wire thickness based on voltage drop - Daily Consumption: pick from a ready device library to total your Wh/day WIZARDS Step-by-step guided wizards for Home, Caravan and Boat setups: pick your system voltage and battery type, add your devices, enter your sun hours, see results instantly. PANEL ANGLE & DIRECTION Pick your location on the map or use GPS; VoltSize suggests the optimal panel tilt angle and direction. Then use your phone's camera and compass to measure the panel's real angle and direction live. SHARE Export your wizard results or device list as a PDF and share it via WhatsApp, email, or any app you choose. All data stays on your device. Calculations in VoltSize are estimates; always consult a licensed electrician or solar installer before any real installation.

Screenshots

Calculator4 screens
VoltSize4 screens

Verdict

The call

Calculator and VoltSize are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
Calculator versus VoltSize: the parameters behind the verdict, then further details
ParameterCalculatorVoltSize
PriceFreeFree
Update frequencyEvery 110 months—
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better16.4
Further details — not scored
Size10 MB46 MB
Age rating4+4+
DeveloperRamalingam SivaramakrishnanEmin Burak YILDIRIM

In-app purchases

None

Calculator

No in-app purchases

None

VoltSize

No in-app purchases

Questions

Is Calculator free?
Calculator is free to download, with no in-app purchases.
Is VoltSize free?
VoltSize is free to download, with no in-app purchases.
Do Calculator or VoltSize have ads?
Both Calculator and VoltSize show ads.

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