SquareRootCalculator vs OneCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
OneCalc
This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.
- Over 40 calculators and unit converters
- Standard and scientific calculator functions
- Financial calculators (interest, loan, currency)
- Health calculators (BMI, calories, pace)
- Construction material calculators
- Date and time duration calculations
- Business and shopping calculators
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All-in-one Calculator is a free calculator app for iPhone and iPad featuring over 40+ calculators and unit converters categorized under finance, health, date & time, construction, shopping and everyday math. Simple yet powerful, the following features are built into this all-in-one calculator app:- STANDARD CALCULATOR • Includes percent key, negative sign, memory functions, brackets and history viewer. • Advanced mode includes functions for trigonometry, roots, exponents and logarithm found in scientific calculators. UNIT CONVERTER • Convert values between metric/ imperial units with conversion calculators for temperature, length, weight, area, volume and many more. FINANCIAL CALCULATORS • Interest calculators using simple and compound interest • Loan calculator with amortization schedule • Savings calculator to calculate future value and monthly savings amount • Currency converter HEALTH -Keep track of your body weight with these calculators:- • BMI calculator • Calories burnt calculator • Running Pace calculator EVERYDAY MATH • Percentage calculator • Fraction calculator • Rounding calculator • Area/ Volume calculator • Right-triangle calculator CONSTRUCTION -Estimate material requirements for small repair works/ DIY projects with these calculators:- • Brick calculator • Concrete calculator • Tiles calculator • Lumber volume calculator • Land area calculator DATE & TIME -Find duration between two date/ time values in months, weeks, days, hours, and minutes. • Date calculator (Also useful for age calculation) • Time calculator • Calculators to add/ subtract date and time BUSINESS -These calculators are useful when shopping and for those who run small business. • Profit margin calculator • Price markup calculator • Discount calculator • Tip and split calculator • Sales tax/ VAT calculator
Screenshots
Verdict
The clearest difference is review sentiment: OneCalc at 72% against SquareRootCalculator's 23%. OneCalc also leads on rating (4.6 vs 4.2) and ratings volume (5.1K vs 37). SquareRootCalculator's advantage is monetization model (ad-supported vs free with in-app purchases) and iOS requirement (11.0 vs 15.6). 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.
OneCalc holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: OneCalc has 5.1K ratings behind it against 37, so its average is the more settled of the two. Written reviews point the same way: 23% of SquareRootCalculator's written reviews are positive against 72% of OneCalc's.
SquareRootCalculator ships an update every 14 months, OneCalc every 3 months. Both last shipped on November 2, 2026.
| Parameter | SquareRootCalculator | OneCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (37 ratings) | 4.6 (5.1K ratings) — better |
| Positive reviews | 23.1% of reviews | 71.8% of reviews — better |
| Number of ratings | 37 | 5.1K — better |
| Update frequency | Every 14 months | Every 3 months — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Jirou Fukuda | tasser gyati |
Customer experience
SquareRootCalculator
OneCalc
Bugs and requests
SquareRootCalculator
Not enough reviews yet to summarise bugs or requests.
OneCalc
Reported bugs
3 issues- Crashes when using the 'More' section
- Incorrect date duration calculations
- Paid version still shows ads
Requested features
7 requests- Add more than 2 slots for conversions
- Include a 'log' feature
- Add a 'simplify fractions' unit
- Improve the 'Date duration' calculator
- Add a 'Business' mode with cost, sell, and margin keys
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- Add a millimeters conversion option
- Implement a 'clear' button to easily delete fields
In-app purchases
SquareRootCalculator
No in-app purchases
OneCalc
No in-app purchases
Questions
Is SquareRootCalculator free?
Is OneCalc free?
Which has better reviews, SquareRootCalculator or OneCalc?
Do SquareRootCalculator or OneCalc have ads?
Which is updated more often, SquareRootCalculator or OneCalc?
Other comparisons
