Beyond MST Explorer vs Sleep Mate
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Beyond MST Explorer
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This is an evaluation version of Beyond MST that is only for participants in approved program evaluation projects for NCPTSD. Please get our public app Beyond MST if you are not enrolled in a program evaluation project. To unlock this app, you will need an invitation code from an approved investigator. Please contact your investigator if you need help.
Sleep Mate
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Review your sleep records at a glance each morning. Sleep Mate is a sleep tracking app. It uses your overnight records to estimate sleep time and patterns, then shows them in a morning sleep report. You can also save brief nighttime sounds, including sounds like snoring. โ Sleep records Review estimated sleep time and patterns based on the information recorded between bedtime and waking. โ Snoring and nighttime sounds When a louder sound is detected, a short clip is saved on your device. Listen back in the morning. โ Sleep rhythm See your average sleep time over the past 7 days, typical sleep and wake times, and changes over 4 weeks. โ Calming sounds Choose rain, nature sounds, or white noise as background audio before bed. โ Wake-up alarms Set a one-time or repeating alarm. โ Privacy Sleep records and sound clips are stored on your device. They are not uploaded to a Sleep Mate server. The app is free to use and shows only banner ads. Sleep Mate is a wellness app for following sleep habits. It is not intended for medical diagnosis or treatment.
Screenshots
Verdict
The clearest difference is ads: Beyond MST Explorer at none against Sleep Mate's shown. Sleep Mate's advantage is update cadence (every 3 days vs every 27 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Beyond MST Explorer ships an update every 27 months, Sleep Mate every 3 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.
| Parameter | Beyond MST Explorer | Sleep Mate |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 27 months | Every 3 days โ better |
| Ads | No โ better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 158 MB | 88 MB |
| Age rating | 17+ | 4+ |
| Developer | Palo Alto Veterans Institute for Research | seongho park |
In-app purchases
Beyond MST Explorer
No in-app purchases
Sleep Mate
No in-app purchases
Questions
Is Beyond MST Explorer free?
Is Sleep Mate free?
Do Beyond MST Explorer or Sleep Mate have ads?
Which is updated more often, Beyond MST Explorer or Sleep Mate?
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