Carrot Care is a careful indie product. Built solo by Dmitrij Kurilo, it leans on a pattern most trackers have not matched: a single Levine-style phenotypic-age number on the home screen that feels meaningful on day one. Where other trackers hand you a wall of values and trend arrows, the app gives you one biological-age headline to react to. The execution lives up to the idea, with native visionOS support, a strict local-first privacy posture, and a 4.32 / 5 App Store rating across roughly 146 reviews. The most recent update is v1.0.46, shipped April 16, 2025.
The product is built around one person on one Apple device. It runs on iOS and visionOS only, stores data locally with iCloud backup, ships UI in English, Polish, and Spanish, and has no family-profile concept. Pricing is split across five paid SKUs — monthly tiers at $6.99 and $29.99, a $39.99 quarterly, and annuals at $59.99 and $79.99 — which can take a moment to parse the first time you open the paywall. For solo iPhone users who fit that mold, it is an easy recommendation; households with mixed Android and iOS devices, lab reports in other languages, or several people to track will hit its edges fast.
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One app is built for a single Apple user chasing a phenotypic-age number. The other is built for a household, in any language, on whatever phones it already owns.
Where MyBloodTest goes wider.
MyBloodTest starts from a different assumption: the same data needs to live on iOS, Android, and the web, and more than one person in a household may be tracking results. The free tier includes five family profiles — with CALIPER pediatric reference ranges for kids — and the AI scan treats reports in German, French, Italian, Japanese, Cyrillic, and right-to-left scripts as first-class inputs. Every reference range is attributed to a specific named source you can switch between: Mayo, ARUP, Quest, Labcorp, WHO, RCPA, NORIP, JSCC, UK Path Harmony, and CALIPER. Wearable sync covers Apple Health, Health Connect, Fitbit, and Withings. Sharing with a doctor is one tap to a PIN-protected QR link. Pricing is one decision: free, or $4.99/mo ($39.99/yr) Premium.
How to use both together.
If Carrot Care is already working for you, MyBloodTest is happy to sit beside it. Your scanned PDFs stay on the iPhone with iCloud backup; drop the same PDFs (or fresh ones) into MyBloodTest on iOS, Android, or the web, and you get multi-language parsing, named reference sources, and family profiles alongside the phenotypic-age headline you have been tracking. Kurilo's app keeps doing what it does best — MyBloodTest fills in the gaps around it: other household members, Android phones, older labs in non-English languages, and a clean share-with-doctor link.