
Sahha
User Health, Lifestyle & Behavior API
Health, Fitness & Lifestyle Product Playbook 2025
The Healthtech space needs actionable frameworks to support its growth into this new and existing Era.
So we distilled everything we’re seeing into three dominant, technological themes shaping the future of health, fitness, and lifestyle products:
Data + AI → The tech you definitely need
Hyper-Personalization → The philosophy behind value delivery
Brand → The voice that keeps you relevant and chosen
This is a practical, founder-friendly breakdown of what matters most when building for the future.
This playbook is generalised. It is not specialised to any specific industry where certain regulations, or blockers may exist.
The domineering theme of this playbook hyper-personalization, a topic you should become familiar with as you will end up hearing it more and more throughout the next few years - especially given the rise of generative AI and compelling new approaches to building engaging UX. McKinsey recently create a report personalization in 2025, please have a look.
If you want to get in touch with us at Sahha, you can so here: https://sahha.ai/start
Who this applies to
It doesn’t matter how you classify your product. If you're building in or adjacent to health, this applies to you:
🏋️♂️ Fitness, nutrition, or mental wellbeing app
💊 GLP-1 telehealth clinic
🏢 Corporate wellness or coaching platform
🧘 Meditation, journaling, or CBT tool
🥗 Supplement or consumable brand
📈 CRM, LMS, or studio management software
🧪 Longevity, diagnostics, or labs
🥑 E-Commerce / Q-Commerce / Meal Delivery App
Or anything in between
Why should you trust this playbook?
Sahha is an API/SDK company connecting in to hundreds of health, fitness and lifestyle applications. We have customers across multiple countries and categories serving millions of people.
Because of this we are lucky enough to see the forefront of what is possible and what is being built in the health domain generally.
This playbook is our distilled knowledge that has guided our product decisions and direction for the last few years. Many lessons and learnings have gone into its distillation. We’re not jumping on a trend, we are lucky to have a unique window into how things are moving and we are letting you see into it.
Enjoy!
Sahha Insights are now live for everyone. This is something we’ve been working on for a while, and many of you currently building on Sahha have been wanting for a long time (we appreciate your patience!).
Insights provide two core components:
➡️ Trends–designed to detect and communicate directional change in a score, factor, or biomarker over time.
➡️ Comparisons–providing context to scores or biomarkers by comparing them with relevant reference groups, helping to understand if values are typical, high, or low compared to global averages, similar demographic cohorts, or personal historical baselines.
Great for displaying progress back to your users, even more powerful to deliver messaging with a punch. Sahha Insights can power a wide range of intelligent features in your product:
✅ Progress Monitoring : Are users improving or declining in health/lifestyle
✅ Behavioral Intelligence : Understand lifestyle changes without digging into raw data.
✅ Smart Nudges : Trigger actions and recommendations based on meaningful trend shifts.
✅ Personalization : Tailor content or recommendations based on patterns, not just state.
✅ User Reports : Generate reports for users to track their progress over time.
✅ Visualizations : Display insights in charts or graphs to help users understand their health and lifestyle.
https://docs.sahha.ai/docs/products/insights
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We made a way to easily xategorize users based on long-term health, lifestyle, and behavioral trends, enabling hyper-personalized engagement and retention strategies. Archetypes are intuitive, easy-to-use labels that capture a person’s persona, health and lifestyle
It's now live on producthunt!
https://www.producthunt.com/posts/sahha-archetypes
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When iOS 18 rolled out, it (for many) unexpectedly removed critical sleep timing estimates that countless developers depended on for their health and wellness apps. The result? A huge segment of iOS users lost access to the sleep-related insights they’d come to rely on, including Sahha Sleep Scores and biomarkers, which originally leveraged Apple’s Sleep Estimates via HealthKit.
Our Solution: We built the Sahha Sleep API for iOS—a scientifically validated, phone-only method that generates accurate sleep biomarkers and scores without requiring wearables. Essentially, we’ve replaced (and even improved upon) Apple’s removed features by tapping into phone sensor data. In late December (just before Christmas), we deployed our fix, ensuring that over 80% of our iOS user base—who rely solely on their phones—continued receiving reliable sleep scores without any extra effort on their part.
Why This Matters:
No Wearables Needed: 80%+ of our customer users never owned wearables like the Apple Watch, so we had to figure out a phone-based solution.
Scientifically Validated: We replicated Apple’s prior estimation techniques and enhanced them, leveraging our team’s expertise in data science and behavioral health.
Zero Extra Work for Developers: We seamlessly updated our customers’ apps. Once our fix was live, they immediately regained sleep timing data and enhanced sleep scores—no additional coding required.
Market Demand: Following a single LinkedIn post, 10 new projects signed up to integrate Sahha, especially those in mindfulness, sleep, and well-being verticals.
Who knew Apple’s push to highlight wearables would lead us to innovate a better phone-only sleep tracking system? If you’re building a health, fitness, wellness, mindfulness, or sleep app and need passively generated, research-backed sleep estimates and biomarkers—no watch required—check out the Sahha Sleep API for iOS - available simply by integrating Sahha! We’d love to help you restore and improve your users’ sleep insights.
Thanks for reading! Let me know what you think, or feel free to reach out if you have any questions about integrating Sahha’s phone-only sleep tracking in your app.
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It's unexplainable. Insights such as biomarkers and health scores frequently displayed in health & fitness mobile apps and dashboards are often blackboxes that display simple numbers with no context, often confusing users and leaving them without vital information to drive any changes in behavior, health or wellbeing.
We wanted to enable anyone building health & fitness apps to create health scores (such as sleep, wellbeing or activity scores) to not just have simple numbers to show to their users, but also explainable ones.
Here is exactly how we do that at Sahha ⤵
https://docs.sahha.ai/docs/products/scores/explainability-factors
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It's unexplainable. Insights such as biomarkers and health scores frequently displayed in health & fitness mobile apps and dashboards are often blackboxes that display simple numbers with no context, often confusing users and leaving them without vital information to drive any changes in behavior, health or wellbeing.
We wanted to enable anyone building health & fitness apps to create health scores (such as sleep, wellbeing or activity scores) to not just have simple numbers to show to their users, but also explainable ones.
Here is exactly how we do that at Sahha ⤵
https://docs.sahha.ai/docs/products/scores/explainability-factors
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Due to popular demand, we've finally updated our documentation site. It's not just dev docs, but so much more!
The new site features use-cases, guides and of course, far richer science communication about how Sahha works.
Check it out: docs.sahha.ai
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After months of successfully testing and piloting our technology within various digital health companies and helping drive positive bheavioral change for many hundreds of thousands of individuals around the world we went back out to market for funding to fuel the next part of our growth.
Aura Ventures, Supermoon Capital, Antler and Ignite Venture Partners participated in our seed round which we closed in August 2023.
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As you know, Sahha.ai is an API technology that analyzes user behaviors through mobile devices to understand their mental health state.
Why did we build it? Because we believe that great technology products deliver better value, care and interventions because they understand their users needs deeply. As the world gets more complex and digitally integrated it means that new sources of data are available to improve how we build digital health care solutions and beyond. We think Sahha can empower those solutions.
Like you, everyone involved in building and growing Sahha has a mental health story, and for the most part I feel as if I am doing my life’s work with this project.
Today is a pretty big day we’ve gone live on Product Hunt, a place where great companies like Stripe and Apple launch their new products and the place where we’re launching ours.
Please, show your support for our mission, and check out our launch page: https://www.producthunt.com/posts/sahha
Cheers and thanks from the Sahha team!
Aleks Dahlberg, Co-founder | Sahha
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We'll be launching our public version of Sahha on Product Hunt on the 8th September.
If you want to subscribe to get notified, then please join our upcoming page here:
https://www.producthunt.com/my/upcoming/sahha
We'll be launching with a 40% off discount!
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About
Sahha enables developers to collect, analyze and understand user Health, Lifestyle and Behavior through one API and SDK.

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