Charles Perng — apps & tools

Study apps for exams I have taken or taught, and small developer tools I wanted to exist. Most of them run offline and without an account.

Study apps

• 單手刷990 Handy 990 — 多益 TOEIC 練習

  TOEIC Listening & Reading practice: all seven parts, mock tests, vocabulary and grammar, with a free placement diagnostic.

  繁體中文官網 English site 完整功能一覽 網頁版 web app

• 單手學：iPAS AI 應用規劃師

  iPAS AI 應用規劃師備考 App：8 本專業電子書、4,000+ 題庫與模擬考， 完整覆蓋初級與中級考科。

• Handy Series 7

  FINRA Series 7 exam prep — lessons mapped to all 14 outline tasks, 780+ practice questions with explanations, and full-length 125-question mocks. Offline, ad-free, no account.

• Handy SIE

  FINRA Securities Industry Essentials prep — lessons for all four sections, 1,000+ practice questions with explanations, and full-length mocks. Offline, ad-free, no account.

• Vocab Hall

  A museum for your mind — wander through galleries and discover the world, one word at a time.

Developer tools

• Git Slider

  Stay in the queue.