Table 3.
Training and workout apps included in the study analysis.
| App | Overall quality Score (points) | Quality subscores (points)a | App comments |
| Sworkit Lite Personal Trainer | 9.01 | 3.92; 4.11;0.98 | Provides good variation for 30-minute workouts, all 3 workout components and programming are present |
| The 7 Minute Workout-Get fit | 5.39 |
2.53; 2.86; 0.00 | Provides aerobic and resistance workouts, but no fitness program elements and progression |
| StrongLifts 5x5 |
4.47 |
0.99; 3.48; 0.00 | Provides workout plan and progression; mainly focused on strength training |
| Running for Weight Loss: Interval Training |
4.16 |
4.16; 0.00; 0.00 | Provides a running training plan with all aerobic program elements, but no resistance training/flexibility instruction |
| JEFIT Workout | 4.08 |
0.47; 3.51; 0.10 | Provides workouts and video examples. Program elements are present, but must be set by the user |
| FitnessBuilder | 4.04 |
0.99; 2.88; 0.17 | Provides exercises for various body parts but no program elements; need upgrade to progress beyond beginner workouts |
| C25K-5K Trainer Free | 3.67 |
3.67; 0.00; 0.00 | Provides general progression plan to work up to running continuously for 4.8 km (3 mi) |
| Ultimate Fitness Free | 3.53 |
0.00; 3.53; 0.00 | Provides some workouts, payment required to access all features, but no fitness program components |
| Nike+ Training Club | 3.11 |
1.14; 1.92; 0.05 | Social network and workout log |
| BodySpace | 2.56 |
0.00; 2.31; 0.25 | Substantial index of exercises for workouts, workouts can come from different coaches, has pictures of exercises and demonstrations |
| Fitness Buddy Free | 2.53 |
0.50; 2.03; 0.00 | Provides workout videos and individual workout plans; fitness program elements and progression; targeted for women; 1 workout provided free |
| 7-Minute Workout-Fitness for Women | 2.54 |
1.13; 1.41; 0.00 | Provides aerobic and resistance workouts, but no fitness program elements and progression; targeted for women; 1 workout provided |
| The Johnson and Johnson Official 7-Minute Workout | 2.44 |
1.22; 1.22; 0.00 | Provides aerobic and resistance workouts, but no fitness program and progression elements |
| Fitness Point-Workout Exercise | 2.05 | 0.00; 2.05; 0.00 | Provides strength training sessions only |
| FitStar Personal Trainer | 1.99 |
0.48; 1.47; 0.04 | Provides log for workouts and workouts to do, provides a few workouts for free but all program features only available with subscription; good exercise demonstrations and videos |
| 7 Minute Workout | 1.72 |
0.00; 1.72; 0.00 | Provides some workouts, payment required to access all features, but no fitness program components; good basic fitness program |
| Instant Abs Trainer | 1.64 |
0.00; 1.64; 0.00 | Provides exercises for all body parts, but contains no fitness program components |
| Daily Workouts Free | 1.56 |
0.05; 1.44; 0.07 | Provides workout exercises and video, but no fitness program components; a “a home-made video” presentation |
| Jillian Michaels Slim Down | 1.43 |
0.11; 1.27; 0.05 | Features exercises for all body parts, but access to program details must be purchased by consumer |
| Simply Yoga Free | 1.38 |
0.33; 0.33; 0.72 | Only focuses on yoga; 1 free workout-only reduction; different workouts based on experience, track progress with pictures |
| Belly Fat Workout Free | 1.38 |
0.00; 1.38; 0.00 | Workouts geared to burning abdominal fat, “spot training” |
| Daily Yoga-Lose Weight, Get Relief | 1.26 |
0.00; 0.33; 0.93 | Provides exercises but no fitness program components |
| Cardio-Heart Rate Monitor + 7 Minute Workout | 0.66 |
0.33; 0.33; 0.00 | Heart rate monitor and tracker; has 7-minute aerobic and resistance workouts to improve fitness and endurance but no progressive fitness programming |
| Daily Butt Workout FREE | 0.55 |
0.00; 0.55; 0.00 | Provides exercises for all legs and glutes, but contains no program elements. Paid version includes more exercises for various body parts |
| Strava Running and Cycling | 0.49 |
0.49; 0.00; 0.00 | Provides workouts and log for workouts; only tracks when premium is purchased by consumer |
| Workout Trainer | 0.44 |
0.00; 0.44; 0.00 | Provides exercises for multiple body parts and logging tools. No fitness program components provided |
| 8Fit Fitness at Home: Personal Trainer | 0.33 |
0.00; 0.33; 0.00 | Provides workouts and workout programs, but program components and progression features are only available after payment |
| Daily Ab Workout Free | 0.33 |
0.00; 0.33; 0.00 | Only an abs workout trainer, not other components |
| Abs Workout: Get Your Six Pack | 0.33 |
0.00; 0.33; 0.00 | Only an abs workout trainer, not other components |
| Runtastic Six Pack Abs Trainer | 0.33 |
0.00; 0.33; 0.00 | Only an abs workout trainer, not other components |
aQuality subscores are for aerobic; resistance; flexibility.