noun
beta test
Computing term for a pre-release testing phase where software is evaluated by external users.
新しいアプリのβテストに参加しませんか？
Would you like to participate in the beta test of the new app?
βテストの結果をもとに、製品を改良しました。
We improved the product based on the results of the beta test.
Loanword from English 'beta test', combining 'beta' (second letter of the Greek alphabet, used metaphorically for a second-stage release) and 'test'.