Strong Vibration vs Endó
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strong Vibration
This app transforms your smartphone into a powerful massager. It offers a variety of pre-set vibration modes and allows you to create custom patterns. Enjoy strong, customizable vibrations for relaxation or personal use without intrusive ads.
- Strongest device vibration
- 12+ vibration modes
- Custom vibration patterns
- Screen lock during vibration
- Long-distance control
- Ad-free experience
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With Vibrate Phone Strong Vibration you have strong vibration wherever you want. Press play in the vibration app and your smartphon will start vibrating. A Free Vibration App. What are the advantages of Vibrate Phone Strong Vibration? 1. Vibrate Phone Strong Vibration is for every gender. It can be a strong vibration app for women, a strong vibration app for men as well as vibrator for diverse people. 2. Vibrate Phone Strong Vibration is a free vibration app. You can use every vibration feature completely for free. 3. Vibrate Phone Strong Vibration has over 12 different vibration modes. 4. With Vibrate Phone Strong Vibration you can create your own custom vibration modes. 5. Vibrate Phone Strong Vibration is a vibration app for long distance control. 6. Vibrate Phone Strong Vibration has no ads that are interrupting the vibration. 7. Vibrate Phone Strong Vibration has the strongest vibration your device can deliver. 8. Vibrate Phone Strong Vibration has the ability to lock your screen during vibration, that you do not miss click while vibrating. 9. Vibrate Phone Strong Vibration is also good for a massager, for example for a massage against back pain or just a relaxation massage. Now you can start, install Vibrate Phone Strong Vibration and start the vibration! Screenshots by screenshots.pro App Icons by flaticon.com
Endó
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Understand your body. Shorten the path to answers. The average time from first symptom to an endometriosis diagnosis is six to ten years. Recognising your symptom pattern early — and having it written down — is one of the few parts of that timeline you can actually influence. Endó is a symptom-matching and tracking app for people who suspect endometriosis, or who already have a diagnosis and want to understand what makes their symptoms better or worse. SEE HOW YOUR SYMPTOMS COMPARE Answer a 56-symptom questionnaire drawn straight from published research. Endó shows you which of your symptoms are the ones most strongly associated with endometriosis in that study — and which are not. LOG IT DAY BY DAY Pain, symptoms, mood and flow, with your cycle day and phase alongside them. A minute a day builds a record that's hard to reconstruct from memory. A PLAN, NOT GENERIC ADVICE Your answers about remedies, diet, sleep and daily impact turn into concrete things to try and track next cycle. WALK IN PREPARED Months of structured symptom history in one place: symptom timeline, cycle history, pain patterns, and what you've already tried. ASK ABOUT FOOD AND HABITS Is coffee bad for endo? Should I avoid gluten? Endó's advisor answers everyday questions about food and lifestyle, with sources shown alongside. THE RESEARCH BEHIND IT Endó's symptom matching is drawn from one specific peer-reviewed, open-access study: Goldstein, A. & Cohen, S. (2023). Self-report symptom-based endometriosis prediction using machine learning. Scientific Reports, 13, 5499. The authors surveyed 886 women — 474 with a diagnosis of endometriosis and 412 without — recording which of 56 symptoms each had experienced in the past month. Those published per-symptom frequencies are what the questionnaire is built on. The study was approved by the ethics committee of Ariel University. Its limitations are worth knowing, and we don't hide them: participants were recruited through Facebook groups rather than clinics, and some women in the undiagnosed group may have undiagnosed endometriosis. You can read the full paper yourself. IMPORTANT Endó is an educational symptom-matching and tracking tool. It is not a medical device, not a diagnosis, and not a substitute for professional care. A symptom match is not a result, a risk score, or a prediction. Only a qualified clinician can diagnose endometriosis. Always talk to a healthcare professional about your symptoms. PRIVACY Your health data is yours. See our privacy policy for exactly what is stored and where. Questions or feedback: theendoappeu@gmail.com Privacy Policy: https://endotheapp.com/privacy Terms of Use: https://endotheapp.com/terms
Screenshots
Verdict
The clearest difference is update cadence: Endó at every 6 days against Strong Vibration's every 3 weeks. Strong Vibration's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 26.0). On price, ads 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
Both are free to download. Strong Vibration sells 4 in-app purchases, starting at $4.99 per month and Endó sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Strong Vibration ships an update every 3 weeks, Endó every 6 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | Strong Vibration | Endó |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (740 ratings) — better | — |
| Positive reviews | 71.8% of reviews | — |
| Number of ratings | 740 — better | — |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 246 MB | 27 MB |
| Age rating | 17+ | 17+ |
| Developer | Sick App Developers GmbH | Gisli Gardar Bergsson |
Bugs and requests
Strong Vibration
Reported bugs
3 issues- App crashing or not opening
- Inability to save user profile
- Compatibility issues with older devices
Requested features
4 requests- Slower vibration modes
- Stronger vibration intensity
- Ability to save user settings
- Improved spam prevention
Endó
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Strong Vibration
- Strong Vibration Plus$4.991 Month
- Strong Vibration Plus Premium$9.991 Month
- Strong Vibration Plus$49.991 Year
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- Strong Vibration Plus Premium$99.991 Year
Endó
- Endó Plus (Weekly)$1.997 Days
- Endó Plus — Yearly$39.991 Year









