For skins that let you add custom code, like Tiger, you can hide the widget bar and have it revealed using keys. I don't think it would hide widgets on mobile devices though, you would probably need to use a gesture code block. But analytics is probably best, unless you want a really simple counter.
For example in Tiger > Settings > Custom code > Head
Add
<script>
document.onkeydown = function(event) {
switch(event.key) {
case 'h':
document.getElementById('jalbumwidgetcontainer').style.bottom='-30px';
break;
case 'w':
document.getElementById('jalbumwidgetcontainer').style.bottom='0px';
break;
}
};
</script>
Switch to the 'Body' tab and enter
<script>
document.getElementById('jalbumwidgetcontainer').style.bottom='-30px';
</script>
Build and upload the album. When you visit the album the widgets will be off screen, use the 'w' key to show them and the 'h' key to hide them again. Obviously, this technique will hide all of the widgets, a user would not know they existed.