phoffer
Resident ONE Length Guy
Garmin also has a screw in sensor system (CT10) that pairs with their watches. The sensors basically look like the Arccos ones with a white paint job.Arccos, Shotscope, Garmin, swingbyte (?), and a number of apps allow manual entry.
Game Golf announced a grip with an embedded sensor before Arccos but it never came to market. Arccos also not only costs more, but are getting income from all of the subscriptions.
If you liked Gamegolf, look at shotscope for low profile tags and a non phone device. If you are okay with a phone in your pocket Arccos makes a great product as well.