# Statistics Calculator++ vs Standard Deviation Calculate

The clearest difference is price: Standard Deviation Calculate at Free against Statistics Calculator++'s $0.99. Standard Deviation Calculate also leads on rating (4.3 vs 4.1) and iOS requirement (11.0 vs 15.0). Statistics Calculator++'s advantage is in-app purchases (none vs 1) and ratings volume (309 vs 3). On ads, monetization model and device support there is nothing between them.

Standard Deviation Calculate is free to download; Statistics Calculator++ costs $0.99 up front. Standard Deviation Calculate sells 1 one-off in-app purchase. Statistics Calculator++ asks for nothing beyond the download.

Standard Deviation Calculate holds the better App Store score, 4.3 against 4.1. That said, the two scores are not equally well evidenced: Statistics Calculator++ has 309 ratings behind it against 3, so its average is the more settled of the two.

Statistics Calculator++ ships an update every 3 weeks, Standard Deviation Calculate every 2 months. The most recent releases landed on September 24, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Statistics Calculator++ | Standard Deviation Calculate |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.1 (309 ratings)](https://appshunter.io/ios/app/statistics-calculator-plus-plus/id539195343/reviews) | **[4.3 (3 ratings)](https://appshunter.io/ios/app/standard-deviation-calculate/id1600862053/reviews)** |
| Number of ratings | **309** | 3 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 4 MB | 5 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dogahe](https://appshunter.io/developer/468657946) | [天一 邓](https://appshunter.io/developer/1056154014) |

## What reviewers say

### Statistics Calculator++

[App page](https://appshunter.io/ios/app/statistics-calculator-plus-plus/id539195343)

Perform advanced statistical analysis, including regression and probability distributions, with ease. Visualize data through plots and tables, and save or import datasets from spreadsheets. Offers a wide range of calculations beyond core statistics.

**Highlights:** Data entry and analysis table, Box and whisker plots and histograms, Linear, logarithmic, exponential, power, quadratic regressions, Save and import data from Excel/Numbers, Normal, t, Chi-Squared, F, Binomial, Poisson distributions, Confidence intervals and hypothesis tests, Fraction manipulation, angle conversions, solvers

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 📊 Comprehensive statistics and regression functionality
- 💰 Affordable pricing
- 🎨 Good visual design and graphics
- 📈 Multiple regression models available

**What reviewers complain about**

- 🐛 App freezes during use
- ❌ Limited equation/function options
- 🧭 Poor navigation and confusing layout
- 📖 Lack of clear instructions or user manual
- 💳 Additional in-app purchases required for full features

**Reported bugs**

- App freezes after brief use
- Statistics section won't open
- Incompatibility with iOS 7
- Random number generator produces predetermined sequences
- Landscape/portrait mode switching issues

**Requested features**

- User manual or tutorial documentation
- Ability to input custom quantiles and critical values
- Support for Z-score input in normal distribution
- Streamlined data clearing process
- Quadratic and advanced regression options


### Standard Deviation Calculate

[App page](https://appshunter.io/ios/app/standard-deviation-calculate/id1600862053)

This utility calculates the standard deviation of a dataset, a key statistical measure of data dispersion. It helps understand how spread out values are from the average, with applications in science, industry, and finance.

**Highlights:** Calculate standard deviation, Measure data dispersion, Understand variation from mean, Applications in science and finance, Statistical analysis tool

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 标准差计算器专业版 | $2.99 | one-time |


## Frequently asked questions

### Is Statistics Calculator++ free?

Statistics Calculator++ costs $0.99, with no in-app purchases.

### Is Standard Deviation Calculate free?

Standard Deviation Calculate is free to download, with in-app purchases available.

### Which has better reviews, Statistics Calculator++ or Standard Deviation Calculate?

Standard Deviation Calculate is rated higher. Statistics Calculator++ averages 4.1 out of 5 from 309 ratings, while Standard Deviation Calculate averages 4.3 from 3 ratings.

### Do Statistics Calculator++ or Standard Deviation Calculate have ads?

Neither Statistics Calculator++ nor Standard Deviation Calculate shows ads.

### Which is updated more often, Statistics Calculator++ or Standard Deviation Calculate?

Statistics Calculator++ ships an update every 3 weeks, and Standard Deviation Calculate every 2 months. Most recently, Statistics Calculator++ was updated on September 24, 2026 and Standard Deviation Calculate on September 28, 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.*