# Statistics Calculator++ vs PIDTune

The clearest difference is rating: PIDTune at 5.0 against Statistics Calculator++'s 4.1. PIDTune also leads on review sentiment (100% vs 63%). Statistics Calculator++'s advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (308 vs 2). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Statistics Calculator++ costs $0.99 and PIDTune $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PIDTune holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Statistics Calculator++ has 308 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of Statistics Calculator++'s written reviews are positive against 100% of PIDTune's.

Statistics Calculator++ ships an update every 3 weeks, PIDTune every 4 months. The most recent releases landed on October 14, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Statistics Calculator++ | PIDTune |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | [4.1 (308 ratings)](https://appshunter.io/ios/app/statistics-calculator-plus-plus/id539195343/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pidtune/id1045174726/reviews)** |
| Number of ratings | **308** | 2 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | **Free** | Paid |
| Size | 4 MB | 1 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dogahe](https://appshunter.io/developer/468657946) | [Richard H Street](https://appshunter.io/developer/954888336) |

## 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


### PIDTune

[App page](https://appshunter.io/ios/app/pidtune/id1045174726)

This utility calculates PID tuning parameters using the IMC method for various process and controller types. It allows for direct input of process gain or variable changes, with adjustable tuning aggression via a slider.

**Highlights:** IMC method for PID tuning, Calculates Kc, Ti, Td, Supports FO, SO, and I process types, Handles Parallel and Series controller types, Adjustable tuning aggression slider, Input process gain or variable changes

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

**In-app purchases:** none


## Frequently asked questions

### Is Statistics Calculator++ free?

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

### Is PIDTune free?

PIDTune costs $4.99, with no in-app purchases.

### Which has better reviews, Statistics Calculator++ or PIDTune?

PIDTune is rated higher. Statistics Calculator++ averages 4.1 out of 5 from 308 ratings, while PIDTune averages 5.0 from 2 ratings.

### Do Statistics Calculator++ or PIDTune have ads?

Neither Statistics Calculator++ nor PIDTune shows ads.

### Which is updated more often, Statistics Calculator++ or PIDTune?

Statistics Calculator++ ships an update every 3 weeks, and PIDTune every 4 months. Most recently, Statistics Calculator++ was updated on October 14, 2026 and PIDTune on September 21, 2026.

---

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