All tests run on an 8-year-old MacBook Air. All results from shipping 7 Mac apps as a solo developer. No sponsored opinion.

A 2GB video transfer that fails at 90% and restarts from zero is a terrible experience. HiyokoMTP and HiyokoAutoSync both implement smart resume. Here's how.

The problem

File transfers fail. USB connections drop. Devices sleep. The user unplugs at the wrong moment.

Without resume: start over. With resume: pick up where you left off.