TRTT: Statistics & .sav Data
by Rafal Rybnik
· Business
· Free
On the App Store since July 2026
· Data updated
TRTT: Statistics & .sav Data is made and published by Rafal Rybnik. AppBrain is an independent app data site and isn't affiliated with Rafal Rybnik. The app name, icon, screenshots and description belong to Rafal Rybnik and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- October 5, 2026
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Releases
Updates seen on the App Store- Version
- 1.3.0
- Launched
- July 2026
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 15.4 MB
- Content rating
- Everyone
Technologies used by TRTT: Statistics & .sav Data
About the app and developer
About TRTT: Statistics & .sav Data
TRTT: Statistics & .sav Data is a business app developed by Rafal Rybnik.
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App Information
TRTT: Statistics & .sav Data is freely available from the App Store. The app size is 15.43 MB. The latest version available is 1.3.0. The last update was on October 5, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2026.
Developer information for Rafal Rybnik
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Store listing
By Rafal Rybnik, from the App Store
Screenshots by Rafal Rybnik, from the the App Store listing
Description by Rafal Rybnik Written by the developer, not by AppBrain. Click to read.
TRTT is a complete statistical analysis tool that runs entirely on your device. Open, edit and save .sav and .zsav data files (the format used by IBM SPSS Statistics), import CSV and Excel workbooks, run the analyses you know, and share publication-ready output.
FREE — WITH EVERY FEATURE
Every analysis, every chart, the data editor and the syntax editor are free to use with datasets of up to 100 cases. Nothing is held back behind a feature list. Open a larger file and TRTT offers you a choice: load its first 100 cases and carry on for free, or unlock full dataset size.
TRTT PRO (IN-APP PURCHASE)
TRTT Pro is an optional in-app purchase and it unlocks one thing: dataset size. With it you work on files of any length, from a 500-case survey to a full register extract. Choose a weekly or a monthly subscription, or buy the lifetime unlock once and keep it (lifetime includes Family Sharing). Everything else is already in the free version, and stays there.
ANALYSES
Frequencies, Descriptives, Explore, Means, Crosstabs with chi-square, Ratio Statistics, correlations, t-tests, One-Way ANOVA and Univariate GLM, linear and ordinal regression, factor analysis, K-Means, hierarchical and TwoStep clustering, discriminant analysis, Nearest Neighbor classification and nonparametric tests — with weighted data, Select Cases and Split File, exactly as in desktop statistics packages.
CHARTS
Chart Builder with bar, line, pie, histogram, scatter, boxplot, error-bar and high-low charts, plus confidence intervals on bars and lines.
DATA MANAGEMENT
Data View and Variable View with value labels, missing values, variable types and formats. Compute, Recode, Rank Cases, Count Values, Autorecode and more — every transformation from the dialogs can also be pasted as authentic syntax.
SYNTAX
A real syntax editor: write and run SPSS-style commands, or use Paste in any dialog to generate the equivalent SPSS, R or Python code.
OUTPUT YOU CAN HAND IN
Tables and charts you can export as PDF, or as a native .spv viewer file.
YOUR DATA STAYS YOURS
100% offline. No account, no cloud, no tracking — your data files never leave your device.
Compatible with .sav/.zsav files created by IBM SPSS Statistics, PSPP and other statistical software. TRTT is an independent product and is not affiliated with or endorsed by IBM.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://trtt.app/privacy.html
FREE — WITH EVERY FEATURE
Every analysis, every chart, the data editor and the syntax editor are free to use with datasets of up to 100 cases. Nothing is held back behind a feature list. Open a larger file and TRTT offers you a choice: load its first 100 cases and carry on for free, or unlock full dataset size.
TRTT PRO (IN-APP PURCHASE)
TRTT Pro is an optional in-app purchase and it unlocks one thing: dataset size. With it you work on files of any length, from a 500-case survey to a full register extract. Choose a weekly or a monthly subscription, or buy the lifetime unlock once and keep it (lifetime includes Family Sharing). Everything else is already in the free version, and stays there.
ANALYSES
Frequencies, Descriptives, Explore, Means, Crosstabs with chi-square, Ratio Statistics, correlations, t-tests, One-Way ANOVA and Univariate GLM, linear and ordinal regression, factor analysis, K-Means, hierarchical and TwoStep clustering, discriminant analysis, Nearest Neighbor classification and nonparametric tests — with weighted data, Select Cases and Split File, exactly as in desktop statistics packages.
CHARTS
Chart Builder with bar, line, pie, histogram, scatter, boxplot, error-bar and high-low charts, plus confidence intervals on bars and lines.
DATA MANAGEMENT
Data View and Variable View with value labels, missing values, variable types and formats. Compute, Recode, Rank Cases, Count Values, Autorecode and more — every transformation from the dialogs can also be pasted as authentic syntax.
SYNTAX
A real syntax editor: write and run SPSS-style commands, or use Paste in any dialog to generate the equivalent SPSS, R or Python code.
OUTPUT YOU CAN HAND IN
Tables and charts you can export as PDF, or as a native .spv viewer file.
YOUR DATA STAYS YOURS
100% offline. No account, no cloud, no tracking — your data files never leave your device.
Compatible with .sav/.zsav files created by IBM SPSS Statistics, PSPP and other statistical software. TRTT is an independent product and is not affiliated with or endorsed by IBM.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://trtt.app/privacy.html