The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Mark-V Apps:
Sound Squares is a revolutionary polyphonic synthesizer that puts a grid of musical squares right at your fingertips. Every square is fully customizable which enables you to create the pattern that suits your performance!==Each Square Is Individually Customizable==- 4 analog waveforms- Full range of notes available- Micro-tuning- ADSR volume envelope- Full 44.1khz CD quality audio==Includes Four Effects==- Low-Pass Envelope-Filter- Distortion- Delay- Chorus==Other Amazing Features ==- Patterns can be saved and recalled later- Includes 191 factory patterns- Patterns can be randomized within your specified parameters- Dragging can modulate pitch, amplitude, chorus rate, or filter cutoff- Modulation bar can control amplitude, chorus rate, or filter cutoff.- Adjustable pitch bend sensitivity.