1.69
2023-06-11
We changed the default color of the buttons. If you don't like them, don't worry, because we also added a feature that you can set the color of the buttons based on your preference. This update also extends the support for the dark mode for the main screen.
1.68
2023-05-01
Bug fixes
1.67
2022-11-11
Long press on the screen for copy/paste capability.
1.66
2022-05-07
Performance improvements.
1.65
2021-03-06
We added the capability to draw a Moving Average Plot. It's useful to find longer term trends in time series data such as stock prices or number of items sold over time. You can change the period and offset in the plot.
1.63
2021-01-06
This update resolves an issue for users who have their iPhone set to a region where comma is used as decimal point. This update fixes the issue for Probability Distributions, Confidence Interval and Hypothesis Test sections.
1.62
2020-12-14
We added the capability to plot line graphs. You can plot a line graph of X, or Y values versus index or Y values versus X values.
1.60
2020-11-03
We improved the copy-paste from the Universal Clipboard feature. Now you can copy the values of a list (from one row or column or multiple rows and columns) from your homework file, Excel or Numbers spreadsheets, or even tables in Notes app or any other file from your mac or iPhone and paste it into this calculator to do statistical analysis. Since this feature takes advantage of the Universal Clipboard it works across your devices. Copy from your Mac or iPad and paste right into this app.
1.58
2020-09-29
- Histogram Plot Improvement: Now you can trace the histogram plot by touching the bars and moving your finger on the plot.
- Confidence Intervals and Hypothesis Test Improvement: Now you can preview the list before selecting it to use in Confidence Interval or Hypothesis Test calculations.
1.57
2020-09-13
We improved the Scatter Plot. Now you can trace the scatter plot points by touching the points and moving your finger on the plot. Furthermore, you can share the scatter plot.
1.53
2020-07-26
- Added hypothesis test for population mean with known population standard deviation (with step by step explanation and graph)
1.52
2020-07-10
- Added hypothesis test for population mean difference with step by step explanation and graph
1.51
2020-06-25
- Added hypothesis test for population mean with step by step explanation and graph
- Added capability to share or save screenshots of Histogram, Box and Whisker Plots, or Probability Distributions
1.49
2020-05-29
- Now you can perform hypothesis test for one population proportion. That includes step by step explanation and graph.
1.47
2020-05-07
- Now you have Confidence Interval calculation and step by step explanation for "Population Mean", "One Population Proportion" and "Difference in Two Population Proportions".
1.37
2019-06-03
- Discrete Probability Distributions and Graph: Binomial, Poisson, and Geometric Distributions.
- Continuous Probability Distributions and Graph: Normal (Gaussian), Student's T, Chi-Squared, and F Distributions.
1.36
2019-05-28
- Discrete Probability Distributions and Graph: Binomial and Poisson Distribution.
- Continuous Probability Distributions and Graph: Normal (Gaussian), Student's T, Chi-Squared, and F Distribution.
1.35
2019-05-20
- Discrete Probability Distributions and Graph: Binomial Distribution.
- Continuous Probability Distributions and Graph: Normal (Gaussian), Student's T, Chi-Squared, and F Distribution.
- Improvements on Binomial Distribution and Graph
1.34
2019-05-14
- Continuous Probability Distributions and Graph: Normal (Gaussian), Student's T, Chi-Squared, and F Distribution.
- Discrete Probability Distributions and Graph: Binomial Distribution.
1.33
2019-04-15
- Now with Normal (Gaussian), Student's T, Chi-Squared, and F Distribution calculations and graph.
- We have reduced the price of Quadratic Regression and Graphing Regression Models In-App Purchases to free. Take advantage of this promotion (you still need to purchase these for free to unlock them).
1.32
2012-08-08
- Now with Normal (Gaussian) Distribution, Student's T-Distribution, and Chi-Squared Distribution calculations and graph.
- We have reduced the price of Quadratic Regression and Graphing Regression Models In-App Purchases to free. Take advantage of this promotion (you still need to purchase these for free to unlock them).