Apps similar to simpleSF2 include Decent Sampler, which is free. Other options are Bassmidi VSTi, sforzando and DSK SF2. In total there are four Music Production Apps like simpleSF2 for Windows, Mac, Linux, iPhone and iPad.
The Decent Samples plugin is a FREE sample player plugin that allows you to play sample libraries in the DecentSampler format (files with extensions: dspreset and dslibrary).
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Bassmidi VSTi is a portable VST 2.4 instrument/software MIDI synthesizer for Windows that is based on the Bass/BassMidi libraries by Un4Seen. You need some SF2/SFZ soundfont(s) and a VST Host/DAW to use it.
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sforzando is a highly SFZ 2.0 compliant sample player. Advanced sample hobbyists now have a powerful tool to experiment and share instruments without relying on proprietary formats. sforzando only has one instrument slot; no fancy UI, effects or mixers.
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