# SOLTEC vs KAATSU Connect

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.

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

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.

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.

## The numbers

| Metric | SOLTEC | KAATSU Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (8 ratings)](https://appshunter.io/ios/app/soltecz/id1508060664/reviews) | **[4.7 (13 ratings)](https://appshunter.io/ios/app/kaatsu-connect/id1604116828/reviews)** |
| Number of ratings | 8 | **13** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 38 MB | 17 MB |
| Requires iOS | 15.6 | **12.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Round River Research Corporation](https://appshunter.io/developer/1508060663) | [KAATSU Global, Inc.](https://appshunter.io/developer/1541903350) |

## What reviewers say

### SOLTEC

[App page](https://appshunter.io/ios/app/soltecz/id1508060664)

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:** macOS Compatibility

**In-app purchases:** none


### KAATSU Connect

[App page](https://appshunter.io/ios/app/kaatsu-connect/id1604116828)

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

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*