Also posted here

I think the following is the best well spent app I ever purchased so far. The defintion of well spent app is the app that matches the following criteria:

- Every cents counts. Meaning the price is worth for the functionality.
- Fast response time.
- There is rarely any crash at all. (1 out of 100 uses).
- Simple and nice User Interface.
- Uses more than 10 times.
- Doesn't feel any regret at all!

Utilities
- Seismometer ($0.99)
- Army Knife ($0.99)
- Name Picker ($0.99)
- Pedometer ($1.99)

References
- World Wiki Plus ($0.99)

Games
- Labyrinth ($6.99)
- Touch Physics ($0.99)
- Hangman2 ($0.99)
- Xiangqi ($0.99)
- BrainToot ($0.99)
- ChessPro ($3.99)
- 3D Sokoban
- Enigmo

Productivity
- HiCalc ($0.99)
- iVault Pro ($9.99)
- SpalshID ($9.99)
- Notebook ($2.99) (*Not Notebooks)
- Gratitude Journal ($0.99)
- gFlashPro ($4.99)
- Todo ($9.99) (*Not ToDo)
- QwasiPad

Business
- Fast Contacts ($1.99)

Books
- Classics ($0.99)

Entertainment
- Spawn Illuminati ($0.99)
- Banner ($0.99)
- Nerv Sound GOLD ($1.99) [The author promised that they will add more 'torturing sound' in their next update]
- iDayDream ($0.99)

Health & Fitness
- White Noise ($0.99)
- Hearing Test

Music
- DigiDrummer ($0.99)
- Christmas Carols by iChristmas ($0.99)

http://forum.lowyat.net/topic/846369

It will take a long time to scroll through that long pages...

thanks for your recommended