Comparison

SOLTEC vs KAATSU Connect

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SOLTEC

This app analyzes your sleep cycles to help you regain Delta sleep and improve overall sleep quality. It also offers relaxation sessions for stress relief during the day. Track your progress and observe improvements with system use.

Highlights
  • Sleep cycle analysis
  • Delta sleep improvement
  • Z•TRACK™ Analyst
  • Relaxation sessions
  • Stress relief
  • Progress tracking
Features
Read full description

SOLTEC•Z™ provides an in-depth view of the SOLTEC•HEALTH™ System that works while you sleep to support your natural sleep cycles. Regain Delta sleep, the most important stage of sleep. Evaluate the quality of your sleep with the Z•TRACK™ Analyst and observe improvement in sleep provided by system use. Use during your day for relief from stress by running a Relaxation Session, provided in the Relax section of the app. It's easy to use and can be run while working, gaming, reading or watching TV. Naturally, the best results will come from a session devoted to pure relaxation. Others have found that running relaxation sessions during the day leads to more favorable results in overall sleep scores. You can track your own progress with this app.

About

KAATSU Connect

This app connects to specialized Bluetooth-enabled bands to help users improve fitness, speed up recovery, or aid in rehabilitation. It allows for setting target pressure levels for a personalized blood flow restriction training experience.

Highlights
  • Connects to KAATSU Bluetooth bands
  • Set target pressure levels
  • Blood Flow Restriction (BFR) training
  • Fitness improvement
  • Recovery acceleration
  • Rehabilitation support
Read full description

KAATSU pioneered BFR (Blood Flow Restriction) and is the only brand to offer unparalleled performance and safety for users. Whether your goal is to improve your fitness, significantly reduce your recovery time, or rehabilitate from injury, KAATSU can help you. This app requires KAATSU Bluetooth-enabled bands. Using this app you can connect to the KAATSU bands, set the target pressure, and go. The KAATSU app connects to KAATSU equipment which is designed for fitness and wellness purposes only. KAATSU equipment is NOT a medical device and does NOT have, nor require, regulatory clearance in ANY jurisdiction worldwide as it is exclusively for fitness and wellness use, not medical purposes. The KAATSU system is not designed or intended to diagnose, treat, cure, or prevent any disease or medical condition. Users should consult with a qualified healthcare professional before using KAATSU, especially if they have any preexisting medical conditions or concerns. The information provided within the app is not a substitute for professional medical advice, diagnosis, or treatment. Always check with your doctor in addition to using this app and before making any medical decisions.

Screenshots

SOLTEC4 screens
KAATSU Connect4 screens

Verdict

The call

The clearest difference is rating: KAATSU Connect at 4.7 against SOLTEC's 3.9. KAATSU Connect also leads on ads (none vs shown) and monetization model (free vs ad-supported). SOLTEC's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

KAATSU Connect holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 8 and 13 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

UpkeepUpdate frequency

SOLTEC ships an update every 2 weeks, KAATSU Connect every 6 weeks. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

Scorecard5 real differences · 5 level
SOLTEC versus KAATSU Connect: the parameters behind the verdict, then further details
ParameterSOLTECKAATSU Connect
PriceFreeFree
Rating3.9 (8 ratings)4.7 (13 ratings) — better
Positive reviews50.0% of reviews50.0% of reviews
Number of ratings813 — better
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.612.4 — better
Further details — not scored
Size38 MB17 MB
Age rating4+17+
DeveloperRound River Research CorporationKAATSU Global, Inc.

Customer experience

SOLTEC

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

KAATSU Connect

All ratings13 ratings
Positive92.3%
Neutral0.0%
Negative7.7%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

SOLTEC

No in-app purchases

None

KAATSU Connect

No in-app purchases

Questions

Is SOLTEC free?
SOLTEC is free to download, with no in-app purchases.
Is KAATSU Connect free?
KAATSU Connect is free to download, with no in-app purchases.
Which has better reviews, SOLTEC or KAATSU Connect?
KAATSU Connect is rated higher. SOLTEC averages 3.9 out of 5 from 8 ratings, while KAATSU Connect averages 4.7 from 13 ratings.
Do SOLTEC or KAATSU Connect have ads?
SOLTEC shows ads; KAATSU Connect does not.
Which is updated more often, SOLTEC or KAATSU Connect?
SOLTEC ships an update every 2 weeks, and KAATSU Connect every 6 weeks. Most recently, SOLTEC was updated on October 24, 2026 and KAATSU Connect on October 5, 2026.

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