Symptom Checker & Medication vs Previa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Symptom Checker & Medication
This medical tool helps users identify potential diseases based on their symptoms and provides comprehensive drug and disease information. It also includes various health calculators for tracking key body metrics.
- Symptom checker for disease identification
- Drug information search
- Disease identification
- BMI calculator
- BMR calculator
- Body fat percentage calculator
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Symptom Checker app to help determine a list of possible diseases based on the diagnosis engine. It will be more medical information and show the right doctor category. Key Features: * Symptom Checker: Choose your symptoms, list of possible conditions, diagnosis and more medical information. * Drugs Search: Obtain drug information using the search engine. * Disease Search: We identify disease * Health Calculator 1. Body Mass Index (BMI) 2. Basal Metabolic Rate (BMR) 3. Body Fat Percentage (BFP) 4. Ideal Body Weight (IBW) 5. Waist–Hip ratio (WHR) 6. Body Shape Index (ABSI) 7. Total Daily Energy Expenditure (TDEE) 8. Total Metabolic Rate (TMR) App Support: If you face any problems when using the app, please visit https://friendsapplisting.com Sources of the information: FDA, National Library of Medicine and ApiMedic Disclaimer: This Service is designed for use by consumers in the United States. By using this app, you must read the following terms. The features and content of this app, are not meant to be a substitute for professional medical advice, treatment or diagnosis. Do not disregard or delay in getting professional medical advice due to any information you have obtained from this app. The publisher, authors, or any third party data providers associated with this app do not have any responsibility for the use of the information provided in this app.
Previa
Prepare for doctor's appointments by describing your symptoms. This AI-powered tool identifies potential overlooked symptoms and suggests relevant tests to discuss with your physician. It prioritizes your health information for more productive consultations, keeping all data private on your device.
- AI symptom analysis
- Prioritized test recommendations
- Session history
- Report translation
- Recipient tracking
- Profile-aware analysis
- Multi-language support
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Previa helps you get more out of every doctor's appointment. Describe how you're feeling, and Previa's AI identifies related symptoms you may have overlooked and suggests tests worth discussing with your doctor. Already have results? Import a lab or imaging report and Previa explains it in plain language. No diagnoses. No prescriptions. Just better preparation. WHY PREVIA * Most people forget symptoms under pressure, struggle to describe them clearly, or leave appointments wondering if they asked the right questions. Previa gives you a structured, AI-assisted way to organize your health picture before you walk in - so you and your doctor can make the most of your time together. * Reviewed by an experienced MD advisor to keep Previa's information clear, safe, and appropriately scoped. * Lab and imaging reports are written for clinicians, not patients. Import a photo or PDF of your report and Previa explains what it means in plain language, along with the questions worth raising at your appointment. HOW IT WORKS * AI Symptom Analysis: Step 1 - Describe your symptoms. When they started, how severe they are, what makes them better or worse. The more detail you provide, the better the analysis. Previa identifies what you reported and suggests related symptoms you may not have considered. Anything it can't interpret is shown separately. Step 2 - Review AI suggestions and select any additional symptoms that apply. Add your own if something is missing. Step 3 - Receive a prioritized list of 4 to 8 tests to discuss with your doctor, each with a plain-language explanation of why it may be relevant. * Understand your test results - in plain language, with a list of things to discuss with your doctor. KEY FEATURES * AI symptom analysis powered by Anthropic's Claude * Prioritized tests to discuss with your doctor (high, medium, low) * Plain-language explanations of your lab and imaging results, with what to ask your doctor * Full support for 8 languages: English, Spanish, French, German, Italian, Polish, Russian, and Ukrainian * One credit covers a symptom session or a test explanation - your first two credits are free * iCloud sync - your sessions, results, reports, and profile follow you across your devices * Session history to track symptoms and past analyses * Report translation into 46 languages, including Arabic, Japanese, and Georgian * Recipient tracking - record which doctors received your results and when * Profile-aware analysis - age, biological sex, known conditions, and medications PRIVACY FIRST Previa requires no account, no email, and no sign-up. Your data is stored on your devices and syncs only through your own private iCloud - we never receive a copy. Face ID or Touch ID is required on every launch. No advertising. No analytics. No tracking. You can delete all your data at any time from Settings, and deletions reach your other devices. For better symptom analysis tailored to your situation, symptom text is sent along with Profile context you've filled in - age, biological sex, known conditions, and medications - through a secure proxy server, to the AI. Your name is never sent, and any Profile field you leave blank is simply omitted. When you use Test Results, the report you import is sent to be read and explained. You can hide any sensitive information on the report before importing - the explanation doesn't depend on it. Our proxy server keeps nothing after the request is processed. Anthropic deletes requests within 30 days and never uses them to train its models. IMPORTANT Previa is a health preparation tool, not a medical diagnostic tool. It does not provide diagnoses or medical advice, and does not prescribe treatments. Always consult a licensed healthcare provider for medical decisions.
Screenshots
Verdict
The clearest difference is review sentiment: Previa at 100% against Symptom Checker & Medication's 0%. Previa also leads on rating (5.0 vs 1.0) and ads (none vs shown). Symptom Checker & Medication's advantage is in-app purchases (none vs 3) and iOS requirement (13.0 vs 17.6). On price 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. Previa sells 3 one-off in-app purchases. Symptom Checker & Medication asks for nothing beyond the download.
Previa holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Previa has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Symptom Checker & Medication's written reviews are positive against 100% of Previa's.
Symptom Checker & Medication ships an update every 7 months, Previa every 2 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | Symptom Checker & Medication | Previa |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 7 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 26 MB | 9 MB |
| Age rating | 17+ | 17+ |
| Developer | FRIENDSAPP LISTING | Dmitriy Kourtchikov |
Customer experience
Symptom Checker & Medication
Previa
In-app purchases
Symptom Checker & Medication
No in-app purchases
Previa
- Previa Basic Pack$0.99
- Previa Standard Pack$1.99
- Previa Value Pack$3.49
Questions
Is Symptom Checker & Medication free?
Is Previa free?
Which has better reviews, Symptom Checker & Medication or Previa?
Do Symptom Checker & Medication or Previa have ads?
Which is updated more often, Symptom Checker & Medication or Previa?
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