
About
This app acts as a personal body weather service, correlating your biometric data with environmental factors like weather, air quality, and sound. It identifies unique patterns within your biology, surroundings, and their intersections, presenting them with descriptive names and evidence cards.
What's New in Keld Wellspring
2.2.2
September 26, 2026
Keld 2.2.2 is a stability release. It is about the app surviving the work it does, and cleaning up after itself. MEMORY - Fixed the reason iOS could shut Keld down while it was building a Library volume. Saved Library pictures were being written far larger than intended: an image meant to be capped at 900 pixels across was being stored at 2,700. The step that was supposed to shrink them was making them bigger. - The first time you open the Library after updating, Keld rebuilds its stored chapters once. Those saved before this update were written at the wrong size and cannot shrink on their own. It happens once. - Analysis now steps aside while you are building a volume in the foreground, rather than both running flat out on the same phone at the same time. STORAGE - Keld now clears away the export files it leaves behind after you share a video, image or PDF. These were never being cleaned up and could build to hundreds of megabytes over time. - Library chapters saved by earlier versions are now removed instead of being left on the device. OVERNIGHT WORK - Fixed four places where iOS could stop Keld's overnight analysis partway through and leave it unable to pick up where it left off.
MoreSubscriptions & In-App Purchases
Keld+
Your data is free. The oracle is Keld+.
User reviews
FAQ
What kind of patterns does Keld Wellspring identify?
Keld Wellspring identifies four kinds of patterns: Body patterns within your biology, Weather patterns in the air and sky, Geometric patterns at your specific places, and Hybrid patterns that weave biology, weather, and place together.
How does Keld Wellspring protect user privacy?
Keld Wellspring's privacy is built into its architecture. Your raw Apple Health data stays on your device, and your precise location is anonymized on-device before analysis. It requires no account, email, or password, using only an anonymous device identifier.
What environmental data does Keld Wellspring use?
Keld Wellspring correlates your biometric signals with the weather, the air you breathe, pollen levels, ambient sound, and the places you spend time. It provides real-time charts for temperature, pressure, humidity, wind, air quality, pollen, audio exposure, and place density.
What devices does Keld Wellspring support?
Keld Wellspring is supported on iPhone and iPod devices. It integrates with your Apple Watch and iPhone to gather biometric data.
What is the age rating for Keld Wellspring?
Keld Wellspring has an age rating of 17+. This is likely due to the complexity of the data analysis and the nature of health-related insights it provides.
How often is Keld Wellspring updated?
The latest version of Keld Wellspring is 1.10.1, and it was last updated on June 10, 2026. This indicates a relatively active development cycle.
What is the user sentiment for Keld Wellspring?
Based on the provided data, Keld Wellspring has a perfect rating of 5.0 stars from 1 rating, suggesting very positive initial user sentiment.
Does Keld Wellspring have ads?
No, Keld Wellspring does not contain advertisements. Its monetization model is free with in-app purchases, meaning you can use the core features without interruption from ads.









