About this app
tValue can be used to quickly calculate unpaired Student t Values given two sets of mean, standard deviation and n. t values for difference from zero or other specified value can be calculated. Use the difference values for Set 1 and leave Set 2 blank for a paired t test.
Latest release
What’s New
Updated for new age questions and requirements
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 21, 2026 · 11:34 AM Free
Screenshots
