G*Power vs JASP
G*Power
gpower.hhu.de
JASP
jasp-stats.orgSide by side
| Figure | G*Power | JASP |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| Plans published | 2 | 1 |
| Spec score · Statistical Analysis Software | 7.9 (#46) | 8.7 (#8) |
| Analysis types | The tutorial describes a priori, post-hoc, and compromise power analyses. | JASP offers standard analysis procedures in both frequentist and Bayesian forms. |
| Deployment | both | desktop |
| Free plan | Yes | Yes |
| Headquarters | Düsseldorf, Germany | Amsterdam, Netherlands |
| Privacy | The update mailing list states that email addresses are used only to send update notices and are not shared with others. | JASP says it does not collect or store user data through the JASP software; its privacy policy covers the website, forum, and newsletter instead. |
| Purpose | G*Power computes statistical power analyses for many t, F, χ², z, and some exact tests. | JASP is a cross-platform statistical software program with a graphical interface for conducting statistical analyses without programming. |
| Regression models | Yes | Yes |
| Scripting support | Yes | Yes |
| Statistical tests | The tutorial demonstrates power analyses for t-tests, F-tests, and χ²-tests. | Yes |
| Support | The makers invite users to email them to report bugs, usage difficulties, or suggestions for future versions. | For feature requests, installation help, and bug reports, JASP directs users to its GitHub page; it also lists a public forum. |
Plans
In their own words
JASP
JASP is free desktop statistical software for Linux, macOS, and Windows, designed to run analyses through a graphical interface without programming. It offers standard procedures in both frequentist and Bayesian forms, with modules for descriptives, t-tests, ANOVA, regression, meta-analysis, machine learning, structural equation modeling, survival, and time series. The spreadsheet-style interface uses drag-and-drop controls, and results update as analysis options change. JASP produces APA-formatted output, including tables that can be copied into a word processor, and lets users annotate results. It is integrated with the Open Science Framework and can run without an internet connection. Import formats include CSV, TSV, text, SPSS, SAS, Excel, Stata, and R files, among others. JASP requires a 64-bit operating system, about 4 GB of free disk space, and at least 4 GB of RAM; 8 GB is recommended, with 16 GB or more suggested for large datasets. Android, iOS, and iPadOS devices are not supported. The software uses the GNU Affero GPL v3 license, and its download page says it will remain free.