What are some alternatives?
When comparing SANDMARC and Onyx by Titanium, you can also consider the following products
DJI Osmo Mobile - 3-axis gimbal stabilizer for your mobile
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
Shift - Shift is the ultimate email client for managing Mail, Calendar, Drive, Slack, Asana, Jira, Evernote, and all your other favourite apps
Clean Master - Some users swear by it, some call it a glorified snake oil that does more harm than good. That can be said about any snake oil, but what specific brand of snake oil can boast almost a billion downloads around the world?
Zoom In by Hot Wheels - The first ever $1 Hot Wheels car that's compatible w/ GoPro
Auslogics BoostSpeed - Auslogics BoostSpeed: Tune up Your PC for Peak Performance! . * Free trial lets you clean out junk files, enable several Live Speedup tools and run each of the 18 apps under All Tools once.