Apps like SDI TDI ERDI PFI

Here are some great alternatives to SDI TDI ERDI PFI by International Training :
SSI
SSI
★4.8
Dive log
Dive log
★4.3
Dive log PRO
Dive log PRO
★4.3
Garmin Dive™
Garmin Dive™
★4.7
Mares App
Mares App
★4.4
Seabook: Fish identifier
Seabook: Fish identifier
★3.6
DeeperBlue.com
DeeperBlue.com
★4.8
Buddy: Social Dive App
Buddy: Social Dive App
★4.0
Diving Log
Diving Log
★4.5
Oceans – the scuba community.
Oceans – the scuba community.
★3.6
Divers Guide
Divers Guide
★3.5
PADI
PADI
★4.8
Subsurface-mobile
Subsurface-mobile
★4.0
DiveMate (Scuba Dive Log)
DiveMate (Scuba Dive Log)
★3.9
Freedive and Apnea Trainer
Freedive and Apnea Trainer
★4.9
Scuba Exam
Scuba Exam
★4.6