Gene Doe vs StetSAFE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gene Doe
This platform enables citizen science by connecting users with research studies. Researchers can publish protocols and collect data via HealthKit and ResearchKit, while users can enroll in studies after meeting screening requirements and providing consent.
- Citizen science platform
- Research study participation
- Data collection via HealthKit
- ResearchKit ActiveTasks integration
- Self-enrollment in studies
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Gene Doe is a platform for citizen science. Researchers self-publish their protocols using REDCap, and can include instructions to capture patient reported outcomes, sensor and other data in HealthKit, and results of ResearchKit ActiveTasks. Interested app users who meet screening requirements and provide informed consent self-enroll into these studies.
StetSAFE
This medical device uses UV-C light to disinfect stethoscope diaphragms, neutralizing harmful bacteria in minutes. Connect to a mobile app to monitor disinfection status and usage details.
- UV-C light disinfection
- Neutralizes bacteria
- Mobile app connectivity
- Disinfection status monitoring
- Usage details tracking
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StetSAFE is a medical device designed to disinfect the diaphragm of the stethoscopes with UV-C light. Stetsafe neutralizes most of the harmful bacteria found on stethoscopes in under a few minutes. Stetsafe can be connected to smartphones to follow disinfection status and other usage details via its mobile application.
Screenshots
Verdict
The clearest difference is rating: StetSAFE at 5.0 against Gene Doe's 4.0. StetSAFE also leads on iOS requirement (13.0 vs 15.6). Gene Doe's advantage is ads (none vs shown) and update cadence (every 4 weeks vs every 3 months). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
StetSAFE holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Gene Doe ships an update every 4 weeks, StetSAFE every 3 months. The most recent releases landed on June 1, 2026 and June 30, 2026 respectively.
| Parameter | Gene Doe | StetSAFE |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 4 weeks — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 49 MB |
| Age rating | 12+ | 17+ |
| Developer | Christopher Metts | KuartisMed Ltd Sti |
Customer experience
Gene Doe
StetSAFE
In-app purchases
Gene Doe
No in-app purchases
StetSAFE
No in-app purchases









