BasicATTCalc vs SquareRootCalculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BasicATTCalc
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Basic Attenuator Calculator (BasicATTCalc) helps you calculate various resistive attenuators which are used in many audio, video and RF circuit design applications. The standard resistance values based on E-series numbers are outputted in inputting necessary conditions such as source impedance, load impedance and attenuation. Features The calculable attenuators and impedance converters are as follows: - Type T - Type Pi (π) - Type H - Type O - Type Bridged T - Type Bridged H - Type L (Impedance converter) - Type U (Impedance converter) Calculated resistance values are displayed with ideal values or the following E-series number specified either. E12, E24, E48, E96, E192 The most suitable values are calculated in selecting priority calculation whether Simple or Precision. - Simple: Perform calculations that the nearest values are derived to desired impedances and attenuation by the simple structure - Precision: Perform calculations that the nearest values are derived to desired impedances and attenuation by consisting of up to 4 resistors per an element In addition to resistance values, this application provides you with input impedance, output impedance and calculated attenuation with mismatch loss. If necessary, it is able to calculate power dissipated by each resistor and parameters such as reflection coefficient, VSWR, return loss and mismatch loss. Attention Because the standard resistors are used, the following restriction is set up. - Range of resistance value: 1Ω ~ 10MΩ (except ideal values)
SquareRootCalculator
This calculator simplifies square root and fraction calculations. It handles complex rationalizations with high precision, preventing digit overflow for long integers. Easily perform basic arithmetic operations with square roots.
- Square root calculation
- Fraction calculation
- Four rule calculations
- Infinite long integer support
- Rationalization simplification
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It is a calculator for calculating the square root. It can also be used to calculate fractions. You can easily enter and execute the four rule calculations of square root and square root. Since the infinite multiple-long integer is used I the internal operation, there is no worry that the digits will overflow. Especially easy to carry out rationalization which is said to be difficult to calculate.
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Verdict
The clearest difference is price: SquareRootCalculator at Free against BasicATTCalc's $1.99. SquareRootCalculator also leads on update cadence (every 14 months vs every 29 months) and iOS requirement (11.0 vs 14.5). BasicATTCalc's advantage is ads (none vs shown). On 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
SquareRootCalculator is free to download; BasicATTCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BasicATTCalc ships an update every 29 months, SquareRootCalculator every 14 months. The most recent releases landed on December 20, 2025 and September 12, 2026 respectively.
| Parameter | BasicATTCalc | SquareRootCalculator |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 4.3 (34 ratings) — better |
| Positive reviews | — | 23.1% of reviews |
| Number of ratings | — | 34 — better |
| Update frequency | Every 29 months | Every 14 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.5 | 11.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | TAKAHIKO FUKUYAMA | Jirou Fukuda |
In-app purchases
BasicATTCalc
No in-app purchases
SquareRootCalculator
No in-app purchases
Questions
Is BasicATTCalc free?
Is SquareRootCalculator free?
Do BasicATTCalc or SquareRootCalculator have ads?
Which is updated more often, BasicATTCalc or SquareRootCalculator?
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