Statistics Calculator+++ vs Sys Info Widget
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Statistics Calculator+++
Perform advanced statistical calculations, including regression analysis, probability distributions, and hypothesis tests. Easily input data, visualize results with plots, and import data from spreadsheets. Offers a user-friendly interface for complex statistical operations.
- Statistical calculations
- Regression analysis
- Probability distributions
- Confidence intervals
- Hypothesis tests
- Data visualization plots
- Import data from CSV
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Statistics Calculator+++ is a scientific calculator with statistical, regression analysis, probability distributions, confidence intervals, and hypothesis tests capabilities. In designing the statistics functions of this app we had one thing in mind: The user should not need to read a single line of manual to perform the statistical analysis. Simply use Add X, Add Y, and Add f buttons to enter the elements of the lists and frequencies, if any, and you are done. All the statistics and regression models are only a few taps and swipes away. Tap the List button to see the lists entered. The elements of the lists are interpreted independently (as two separate lists) and jointly for regression analysis (if the size of the lists are equal). You can also take advantage of a new import feature to bring in your data from Microsoft Excel or Apple Numbers by first converting them into .csv format. Statistics measure and plots: - Sum, mean, population standard deviation, sample standard deviation, sample variance, sum of squares, min, max, quartiles, and sum of multiplications of two lists are . - Box and whiskers plot, histogram of the data, linear, area, scatter plot, and moving average. Regression: - Linear, logarithmic, exponential, power, and quadratic regressions. An extremely simple and intuitive user interface to choose the regression model and calculate predictions for x and y values and view residuals and residual sum of squares. It also graphs the regression model and how it fits around the data entered. You have the capability to save multiple lists of data and use any of them as list X, list Y, or list f. Access Lists Editor feature by tapping the icon on top right of the Statistics Lists view. Furthermore, all these lists persist in the memory. Therefore, if you close and the relaunch the app the lists are there for you. Normal distribution functionality of TI-83/TI-84 (normalpdf, normalcdf, invNorm, ShadeNorm), Student's t-distribution (tpdf, tcdf, invT), Chi-Squared distribution, F distribution, Binomial distribution (binompdf, binomcdf), Poisson distribution (poissonpdf, poissoncdf), and Geometric distribution (geometpdf, geometcdf) are all possible with this app with an easy to use, and beautiful user interface. In addition you have Beta and Gamma Distributions. Confidence interval calculation and step by step explanation for "One Population Proportion", "Difference in Two Population Proportions", "Population Mean", and "Difference in Population Means". Hypothesis test for "Population Proportion", "Difference in Two Population Proportions", "Population Mean" and "Population Mean Difference" with known and unknown population standard deviations. Other major features of Statistics Calculator+++ are: - The left pane scrolls to reveal more functionality without a need to switch modes. - You see the expression as you enter and it keeps a history of your calculations - Capability of performing fraction manipulations and converting between different formats (proper, improper, and mixed fractions) and seamless integration of fraction, integer, and decimal manipulations. - Capability of inputting degrees, minutes, and seconds for angles and converting between degrees-minutes-seconds format and decimal format. - Capability of calculating permutation, combination, Least Common Multiple (LCM), Greatest Common Divisor (GCD), and prime factorization. - Quadratic and system of two linear equations solver - Rectangular to polar and polar to rectangular coordinate conversion (extremely useful for phasor calculations for electrical engineers) - Throws a set of dice (choice of 1 die to 4 dice) - Backspace to delete last digit entered. This is an ongoing project and we are working on more features and functions to be added to every update of the app. You are going to love the simplicity of the user interface and yet have the powerful functionality with which Statistics Calculator+++ is loaded.
Sys Info Widget
Access real-time device information directly from your notification center or smartwatch. Monitor disk storage, memory usage, and battery levels with clear visual charts and absolute values. Stay informed about your device's status at a glance.
- Notification center widget
- Apple Watch app
- Disk storage monitoring
- Memory usage details
- Battery level display
- Bar chart visualization
- Configurable watch glance
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This App provides a Widget for the notification center which shows the current memory and file storage usage and the battery level. The lightweight widget lets you access this information fast and anytime. Information that is shown in the notification center: - Disk storage (total, used and free capacity) - Memory (total, wired, active, inactive, free memory) - battery level (current percentage) The information is provided as bar chart and in absolute values. Compact, fast and easy to read. The App for the Apple Watch lets you control the memory, battery and disk storage of your iPhone status directly from the watch, very fast and easy. The Watch App includes a "Glance" with one of the three status graphs, which one can be configured in the iPhone App. The Watch App itself can display all information, but you can also configure which of the information will be shown.
Screenshots
Verdict
The clearest difference is price: Sys Info Widget at Free against Statistics Calculator+++'s $2.99. Sys Info Widget also leads on update cadence (monthly vs every 13 months) and device support (4 vs 1). Statistics Calculator+++'s advantage is review sentiment (73% vs 60%). On rating, ratings volume, ads and in-app purchases 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
Sys Info Widget is free to download; Statistics Calculator+++ costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.3 for Statistics Calculator+++ against 4.2 for Sys Info Widget. Both are backed by a comparable volume of ratings — 46 and 37 respectively. Written reviews are what separate them: 73% of Statistics Calculator+++'s written reviews are positive against 60% of Sys Info Widget's.
Statistics Calculator+++ ships an update every 13 months, Sys Info Widget monthly. The most recent releases landed on September 10, 2026 and August 14, 2026 respectively.
| Parameter | Statistics Calculator+++ | Sys Info Widget |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.3 (46 ratings) — better | 4.2 (37 ratings) |
| Positive reviews | 73.3% of reviews — better | 59.6% of reviews |
| Number of ratings | 46 — better | 37 |
| Update frequency | Every 13 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Dogahe | Alexander Clauss |
Customer experience
Statistics Calculator+++
Sys Info Widget
In-app purchases
Statistics Calculator+++
No in-app purchases
Sys Info Widget
No in-app purchases
Questions
Is Statistics Calculator+++ free?
Is Sys Info Widget free?
Which has better reviews, Statistics Calculator+++ or Sys Info Widget?
Do Statistics Calculator+++ or Sys Info Widget have ads?
Which is updated more often, Statistics Calculator+++ or Sys Info Widget?
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