Comparison

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.

Head to head
About

Beyond MST Explorer

Features
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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.

About

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

Beyond MST Explorer4 screens
Sleep Mate4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences ยท 4 level
Beyond MST Explorer versus Sleep Mate: the parameters behind the verdict, then further details
ParameterBeyond MST ExplorerSleep Mate
PriceFreeFree
Update frequencyEvery 27 monthsEvery 3 days โ€” better
AdsNo โ€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS15.615.0 โ€” better
Further details โ€” not scored
Size158 MB88 MB
Age rating17+4+
DeveloperPalo Alto Veterans Institute for Researchseongho park

In-app purchases

None

Beyond MST Explorer

No in-app purchases

None

Sleep Mate

No in-app purchases

Questions

Is Beyond MST Explorer free?
Beyond MST Explorer is free to download, with no in-app purchases.
Is Sleep Mate free?
Sleep Mate is free to download, with no in-app purchases.
Do Beyond MST Explorer or Sleep Mate have ads?
Sleep Mate shows ads; Beyond MST Explorer does not.
Which is updated more often, Beyond MST Explorer or Sleep Mate?
Beyond MST Explorer ships an update every 27 months, and Sleep Mate every 3 days. Most recently, Beyond MST Explorer was updated on November 3, 2026 and Sleep Mate on November 10, 2026.

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