Table 2.
Available Smartphone Apps and Their Studied Reliability and Validity in Measuring Various Joint ROMa
| Application | Technology | Platform | Demonstrated Validity and Reliability in Joint ROM |
|---|---|---|---|
| TiltMeter (Carlos Hernandez) | Inclinometer | AppStore | Lumbar spine flexion/extension16 Ankle dorsiflexion34 |
| Compass (Apple) | Compass | AppStore | Hip internal rotation35 |
| Accurate Compass (Ngo Na; PVDApps) | Compass | AppStore Google Play |
Hip internal/external rotation36 |
| Clinometer + Bubble Level (Peter Breitling; Plaincode) | Inclinometer | AppStore Google Play |
Hip flexion/extension, internal/external rotation36,37,39,40,42 Ankle dorsiflexion/plantar flexion69 |
| Measure (Apple) | Inclinometer | AppStore | Hip flexion/extension, internal/external rotation37 |
| PT Goniometer (Mark Busman) | Inclinometer | AppStore | Hip flexion, internal/external rotation, abduction38 |
| Angle Meter 360 (Aleksey Kozlov) | Photo-capture | AppStore Google Play |
Knee flexion/extension26 |
| Dr. Goniometer (CDM S.r.L) | Photo-capture | AppStore | Knee flexion/extension34,55 Ankle dorsiflexion/plantar flexion69 |
| Goniometer Pro (5fuf5) | Inclinometer | AppStore | Knee flexion/extension34 Ankle dorsiflexion/plantar flexion69 |
| iHandy Level (iHandy Ltd.) | Inclinometer | AppStore Google Play |
Ankle dorsiflexion14 |
Note:aAvailable as of July 2021.
Abbreviation: ROM, range of motion.