Syd vs Longlive
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Syd
This AI-powered mentor offers personalized, science-backed recommendations to help you improve your physical and emotional health, financial well-being, and social life. Access a hub of resources, gain self-awareness through AI insights, and integrate with Apple Health for comprehensive tracking.
- AI Life Quality Mentor Chat
- Personalized Science-Backed Recommendations
- Education Hub (Articles, Meditations, Recipes)
- AI-Powered Personal Insights
- Apple Health Integration
- Life Quality Index™ Tracking
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Discover the life you love with syd™ We all want to uncover our potential to enjoy fulfilling and healthy lives — but often we limit ourselves by the choices we make. Be it striving to find your purpose or optimising your health, you will reach your goal faster with the support of your AI-powered Life Quality Mentor – syd™, available at your fingertips. With the syd™ Super-App, you can get powerful personalised science-backed recommendations and support to discover your pathway towards a life you love. AI Life Quality Mentor: Chat with syd™, your AI Life Quality Mentor, anytime about anything - from physical and emotional health to financial wellbeing, social life, and more. syd™’s responses and guidance are personalised and evidence-based, helping you navigate every aspect of your life quality with confidence. Evidence-Based Recommendations: syd™’s AI is trained on 1.2 million scientific studies and 8.3 billion person-years of data to deliver recommendations that are not only personalised, but proven. Education Hub: Access a library of articles, meditations, recipes, and science-backed resources designed to help you build healthier habits and understand yourself better. Personal Insights: Gain deeper self-awareness through AI-powered insights into your mood, personality, stress, and Life Quality Index™ - revealing patterns, highlighting opportunities for growth, and supporting meaningful, lasting improvements in your life quality. Our proven AI platform is backed by a team of dedicated scientists, mathematicians, engineers and creatives; bringing together the very best in research, global data and genetics – applied for the benefit of entire communities. Integrate Apple Health with syd™ to synchronize and view your biometrics right in the app to tailor recommendations, motivate, and track goal progression. Privacy is at the core of everything we do and we mean it – read more about our terms and conditions here: Terms of service: https://syd.iamyiam.com/en/terms/ Privacy notice: https://syd.iamyiam.com/en/user-privacy/ Our platform and services contain general medical information. The information is not medical advice, and should not be treated as such.
Longlive
This AI-driven health and wellness app supports healthy aging by tracking physical and mental well-being. It offers personalized, science-backed content from experts to improve fitness, manage diet, reduce stress, and build a supportive community.
- Health and symptom tracking
- Medication and diet logging
- Mood tracking and mental well-being
- Personalized workouts
- Diet management
- Community support
- Caregiver sharing
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Longlive is an all-in-one health tracker and coach for healthy agers. Do you wish to manage your health by ensuring not only a good physical health, but your mental well-being as well? As an AI-driven health and wellness app for healthy agers, Longlive improves physical well-being, reduces stress and anxiety, boosts fitness and manages diet, all on one platform. Through personalised, holistic, and science-backed content created by health experts, Longlive makes sure you feel healthy and happy each day. - Track everything - keep a log of your symptoms, medications, and diet and receive daily reminders - Manage your health - understand how your body works in certain age-associated conditions, stay aware of your symptoms, and focus on prevention - Keep your mood in check - Learn about your mood patterns by tracking your mood and see your mental well-being improve - Build a support network - share your healthy achievements with other healthy agers worldwide and build your community - Stay safer - share your health information with your caregivers so they stay updated and take informed and timely decisions - Train optimally - explore workouts tailored to your needs and get insights about your progress to boost your fitness - Manage a healthy diet - track your water and dietary intake and divide your food intake to make sure you’re eating well - Sync with our Longlive watch - while you can sync the app with any device, syncing it with the Longlive watch gives the best tracking experience Longlive is free to use and sync with our Longlive watch or other tracking devices. ***Discalimer- The information provided both in the app and smart watch is for general wellbeing purposes. The data represents is for reference and educational purposes and it not intended for medical use or considered as a medical advice. We advised all the users to consult their physcians before making any lifestyle changes and seek medical attention if they feel any physcial or mental symptoms related to ill health
Screenshots
Verdict
The clearest difference is rating: Longlive at 5.0 against Syd's 4.3. Longlive also leads on in-app purchases (none vs 1). Syd's advantage is update cadence (every 2 weeks vs every 2 months) and ratings volume (11 vs 2). On price, ads and iOS requirement 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. Syd sells 1 in-app purchase, starting at $24.99 per month. Longlive asks for nothing beyond the download.
Longlive holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Syd has 11 ratings behind it against 2, so its average is the more settled of the two.
Syd ships an update every 2 weeks, Longlive every 2 months. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.
| Parameter | Syd | Longlive |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (11 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 87.0% of reviews | — |
| Number of ratings | 11 — better | 2 |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 263 MB | 93 MB |
| Age rating | 4+ | 4+ |
| Developer | iamYiam | Longlive app ltd |
Customer experience
Syd
Longlive
In-app purchases
Syd
- Discovery Membership$24.991 Month
Longlive
No in-app purchases









