# SquareRootCalculator vs OneCalc

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.

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.

## The numbers

| Metric | SquareRootCalculator | OneCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (37 ratings)](https://appshunter.io/ios/app/squarerootcalculator/id1260411892/reviews) | **[4.6 (5.1K ratings)](https://appshunter.io/ios/app/onecalc-all-in-one-calculator/id1324977193/reviews)** |
| Number of ratings | 37 | **5.1K** |
| Positive reviews | 23.1% of reviews | **71.8% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 14 months | **Every 3 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 5 MB | 6 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jirou Fukuda](https://appshunter.io/developer/689603483) | [tasser gyati](https://appshunter.io/developer/1324926550) |

## What reviewers say

### SquareRootCalculator

[App page](https://appshunter.io/ios/app/squarerootcalculator/id1260411892)

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.

**Highlights:** Square root calculation, Fraction calculation, Four rule calculations, Infinite long integer support, Rationalization simplification

**Features:** macOS Compatibility

**In-app purchases:** none


### OneCalc

[App page](https://appshunter.io/ios/app/onecalc-all-in-one-calculator/id1324977193)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent app with many handy extras
- 👍 Easy to use and one of the daily drivers
- 👍 Helps with work
- 👍 Great for calculations and conversions
- 👍 Includes fractions

**What reviewers complain about**

- 🐛 Crashes when using the 'More' section
- 🐛 Incorrect date duration calculations
- 🔍 Ads can be intrusive and disrupt calculations
- 🔍 Confusing keyboard layout with underlined keys
- 🔍 Paid version still shows ads

**Reported bugs**

- Crashes when using the 'More' section
- Incorrect date duration calculations
- Paid version still shows ads

**Requested features**

- 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


## Frequently asked questions

### Is SquareRootCalculator free?

SquareRootCalculator is free to download, with no in-app purchases.

### Is OneCalc free?

OneCalc is free to download, with no in-app purchases.

### Which has better reviews, SquareRootCalculator or OneCalc?

OneCalc is rated higher. SquareRootCalculator averages 4.2 out of 5 from 37 ratings, while OneCalc averages 4.6 from 5.1K ratings.

### Do SquareRootCalculator or OneCalc have ads?

Both SquareRootCalculator and OneCalc show ads.

### Which is updated more often, SquareRootCalculator or OneCalc?

SquareRootCalculator ships an update every 14 months, and OneCalc every 3 months. Most recently, SquareRootCalculator was updated on November 2, 2026 and OneCalc on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*