Test device: LG Optimus Black
Android version: 2.3.4
SnapNPlay is 0,3 MB and the required permissions seem reasonable. The app lets users take photos of partitions and then plays back music for you.
Start off by indicating what clef and key a particular piece is in; SnapNPlay can't identify either automatically. Also, the app can only identify/playback one stave at a time, and not two staves one on top of the other.
Once this is done, hit the 'Snap The Music' button and let the app do its thing.
Please be mindful of the lighting as this is important if you want to achieve good results. You can also opt to use a flash, but I didn't find this to be a well functioning feature. Hone in on the notes as much as possible as clefs and keys can be mistaken for notes; notes should appear in the red rectangle.
The app will then go on to assess the image. All identified notes are highlighted in turquoise. Now simply enter the correct beat and hit 'Play The Music' for the app to playback the bars you've selected.
Should the app incorrectly identify clefs or keys as notes, it will more or less start composing its own little melody. There are a few other minor things the app tends to get wrong, but keep in mind that the developer states that he will keep working on the app, so let's hope these small glitches will be eradicated little by little.
The idea behind SnapNPlay is very inspired and creative and the outcome is certainly useful for musicians and music lovers. That said, the app's functionality is currently still somewhat limited (i.e. at the moment you can only snap a few bars of music and only one stave at a time; accidentals and ties are not recognised). Let's see what the future holds for this unique application!
Screen & Controls
SnapNPlay controls are child's play: easy to understand and hence easy to use.
Snapping a good pic takes a bit of practice, but once you've sussed out the best technique (camera angle, lighting) this aspect works rather well.
The app's set up and overall look is clean and straight forward without too much design fuss.
Speed & Stability
SnapNPlay is very fast and fluid, but it did crash on us twice while we were testing it out for you. The app crashed as I was trying to take snap some shots of two staves and five bars of music. The app seems to struggle a bit with more complex sheets of music. The developer informs us that he plans to continuously work on and update SnapNPlay, which is pretty awesome. For now the app performs great when used within parameters outlined above.
SnapNPlay is available for EUR 3,04 from Google Play, which is rather steep if you consider that the app doesn't yet recognise all input as it should.