Astronomy
- Celestia Portable - portable space simulator
- Stellarium Portable - portable planetarium
Auditory
- Solfege Portable - ear training program
Dictionaries and Thesauruses
- Artha Portable - offline thesaurus
- GoldenDict Portable - dictionary and encyclopedia lookups
Geography
- Marble Portable - virtual globe and atlas
Genealogy
- Gramps Portable - genealogical research software
Memorization / Memory Improvement
- Brain Workshop Portable - dual n-back brain trainer
- Mnemosyne Portable - flashcard memorization tool
Religion
- BPBible Portable - bible study tool
Technical Computing
- FreeMat Portable - scientific prototyping and technical computing
Typing
- TIPP10 Portable - touch typing tutor
- TypeFaster Portable - touch typing tutor