Personally I love and since 2014 have not felt the need to upgrade or change my Fifty Shades Relentless Egg. Ticks the boxes you are after, no app, just handheld remote (but one that is rechargeable not requiring batteries). Got it in 2014 and still works perfectly in 2021 so full marks for longevity too!
Here is My 2014 review if you want a read.