MX3 Diagnostics vs Karecirc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MX3 Diagnostics
Measure and track hydration and sweat sodium levels quickly and conveniently. This system allows athletes, coaches, and managers to manage hydration data for individuals or teams anytime, anywhere. Personalize assessments and manage athlete accounts.
- Perform hydration measurements
- Perform sweat sodium measurements
- View and edit historical data
- Personalize hydration assessment
- Create team/athlete accounts
- Update device firmware
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Say goodbye to time-consuming and inconvenient testing with the MX3 Hydration Testing System. With the MX3 Hydration Testing System athletes, coaches, and team managers can finally measure, track, and manage hydration - anytime, anywhere. With the MX3 Diagnostics app you can: - Perform Hydration Measurements - Perform Sweat Sodium Measurements - View and edit historical measurement data - Personalize hydration assessment with baseline measurements - Create accounts for your team, organization or athletes - Update MX3 LAB firmware
Karecirc
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Karecirc helps remote caregivers track the well-being of their loved ones. Do you know if your loved one has been getting regular walks, which is essential to maintain their mental and physical health? Do you know if they are getting enough sleep? Are they in severe discomfort and unable to venture out of the house for an entire day? Do you know what was their last blood pressure reading? Are they maintaining a healthy heart rate that is appropriate for their age and physical condition? If you answered yes to any of these questions, Karecirc may be for you. It connects to your existing wearable device- we support both Apple Watches and Fitbits. If you have one of these devices, you can start using Karecirc immediately. If you don't, please select and purchase your device - you can go to our website https://karecirc.com or visit the manufacturer's website for the latest information about models available and their features. Please keep in mind that both Fitbits and Apple Watches come in many models, with different feature sets. We also support two of the most advanced blood pressure device models - Omron and Withings. If your loved one has one of these devices, you can have our app configured to upload blood pressure readings automatically. If you don't you can still have your loved one enter the blood pressure readings manually. Finally, we have a unique way to create a circle of family members within which health and wellness metrics are shared. A circle has defined roles: an admin who manages the circle composition and the subscription; 1-2 subjects who are seniors and whose health and wellness data is collected by Karecirc to share within the circle; and one or more members who are family or friends interested in keeping tabs on the health of the subjects. All the circle members are added to the Care Circle at the invitation of the admin. Our app does come with a small subscription fee, but given that we are new in the market, we are providing a generous trial for you to determine if it is a good fit for your family. We offer both a basic and an enhanced plan. There is only one subscription fee for the entire circle, regardless of how many members or subjects are in the circle. At the time of our initial launch, we only allow admin members and subjects to be either in the United States or in India. Members who are not admins or subjects may be supported in additional countries. Our app interface will identify supported countries for non-admin and non-subject members as new releases are rolled out. Please refer to the pdf user manual below for a description of the key features of Karecirc and how to use them. The user manual describes how the location data is used for enabling the Geofencing feature. EULA:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: MX3 Diagnostics at none against Karecirc's 2. MX3 Diagnostics also leads on update cadence (every 3 weeks vs every 2 months). Karecirc's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support 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
Both are free to download. Karecirc sells 2 in-app purchases, starting at $5.00 per month. MX3 Diagnostics asks for nothing beyond the download.
MX3 Diagnostics ships an update every 3 weeks, Karecirc every 2 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | MX3 Diagnostics | Karecirc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 115 MB | 89 MB |
| Age rating | 4+ | 17+ |
| Developer | MX3 DIAGNOSTICS | Karecirc LLC |
In-app purchases
MX3 Diagnostics
No in-app purchases
Karecirc
- Monthly Base Subscription$5.001 Month
- Monthly Premium Subscription$10.001 Month









