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| Num | MARS measurement criteria | Index | Back pain apps | Neck pain apps |
| Back pain relief exercises at home | Back pain exercises 2 | 6-minute back pain relief | Low-back pain relief exercises | Lower back pain exercises | Back pain relief exercises | Lower back pain and sciatica relief exercises | Back pain relief exercises at home | Relieve neck pain | My neck | Neck pain relief exercises | Neck stretches and exercises | Neck and shoulder pain relief exercises and stretches | Neck and shoulder workout |
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| 1 | App targets | Increase happiness/well-being | — | Y | — | — | — | Y | — | Y | — | — | Y | Y | Y | Y |
| Reduce negative emotions | — | — | — | — | — | Y | — | Y | — | — | — | — | Y | Y |
| Depression anxiety/stress | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Anger | — | — | — | — | — | — | — | — | Y | — | — | — | — | — |
| Behavior change | — | — | — | — | — | Y | — | Y | — | — | — | — | — | Y |
| Alcohol/substance use | — | — | — | — | — | | — | | — | — | — | — | — | |
| Goal setting | — | Y | — | — | — | Y | — | Y | — | — | — | — | Y | Y |
| Entertainment | Y | Y | Y | Y | — | Y | — | Y | — | Y | Y | — | Y | Y |
| Relationships | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| Physical health | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
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| 2 | App theoretical background/strategies | Assessment | — | Y | — | — | — | Y | — | Y | — | Y | Y | Y | — | Y |
| Feedback | — | Y | Y | — | — | Y | — | Y | Y | Y | Y | — | — | Y |
| Information | Y | Y | Y | Y | Y | Y | Y | Y | Y | — | Y | Y | Y | Y |
| Education | — | — | — | — | — | — | — | — | — | — | — | — | Y | — |
| Monitoring tracking | — | — | — | — | — | — | Y | | — | — | — | — | Y | — |
| Goal setting | — | Y | — | — | — | Y | — | Y | — | — | Y | Y | — | Y |
| Advice, tip, strategy, and skill training | — | Y | — | — | — | Y | — | Y | Y | — | Y | Y | — | Y |
| Mindfulness | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Meditation | — | Y | — | — | — | Y | — | Y | — | — | | Y | Y | Y |
| Relaxation | — | Y | — | — | — | Y | — | Y | — | — | — | — | — | Y |
| Gratitude strength-based | — | Y | Y | — | — | Y | Y | Y | Y | — | Y | Y | Y | Y |
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| 3 | Technical aspects of the app | Allows sharing (Facebook and Twitter) | Y | Y | Y | — | Y | Y | Y | Y | | — | Y | — | Y | Y |
| Has an app community | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Allows password protection | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Requires login | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Sends reminders | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Needs web access to function | — | — | Y | — | — | Y | Y | Y | Y | Y | Y | — | Y | Y |
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| 4 | App quality mean score (max ) | Engagement | 2.50 | 2.90 | 2.50 | 2.10 | 1.40 | 3.80 | 1.50 | 3.90 | 2.50 | 2.20 | 2.90 | 3.10 | 2.50 | 3.10 |
| Functionality | 3.38 | 3.50 | 3.50 | 3.00 | 1.50 | 3.75 | 3.00 | 4.00 | 3.25 | 3.38 | 3.38 | 3.50 | 3.50 | 3.88 |
| Aesthetics | 1.84 | 1.88 | 3.00 | 1.75 | 1.13 | 3.44 | 1.63 | 3.83 | 2.17 | 2.17 | 3.17 | 3.00 | 3.67 | 3.67 |
| Information | 2.50 | 2.10 | 3.00 | 2.00 | 2.00 | 3.44 | 1.90 | 3.43 | 2.75 | 2.25 | 2.92 | 2.92 | 3.50 | 3.67 |
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| 5 | App subjective quality (max ) | Deal with the user experience with the app questions | 11 | 13.5 | 11 | 10.5 | 7.5 | 14.5 | 9.5 | 18 | 12.5 | 12 | 13 | 12.5 | 13 | 17 |
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| 6 | APP-specific | The impact of the app on people’s attitudes | 19.5 | 18.5 | 20 | 16 | 12.5 | 24 | 11.5 | 25.5 | 20 | 22 | 24 | 21.5 | 18.5 | 24 |
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