Reactions - Allergy Tracker

Content rating
Everyone
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Explore unlimited features alongside Reactions - Allergy Tracker. UseReactions ensures every AGCscript user gets a satisfying experience. More info at Health & Fitness.

All About The The Tool Reactions - Allergy Tracker

Reactions is an app that helps users track allergy-related, skin, and breathing symptoms alongside interactions with potential symptom triggers. Every 12 days we allow users to generate summaries that help them reflect on patterns between their logged symptoms and exposure to potential symptom triggers. The symptom triggers we take into account are cosmetics, cleaning products, foods, pollen, UV and pollution. We also provide users with general informational content intended to support awareness of common environmental and lifestyle factors that impact allergies, eczema and asthma.

Reactions was built by a team who suffer from allergies and struggled to get support from the NHS (an institution we greatly admire) due to the current lack of resources. The app is not a medical device or meant to be any kind of substitution for support from a medical practitioner. We hope the app will allow users to better understand their own health while waiting for, or in between, NHS support. This app is not a medical device and does not diagnose, treat, or prevent any condition.
Allergy, eczema and asthma tracking and insights.
Updated on
Jun 18, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Personal info and 5 others
  • This app may collect these data types
    Location, Personal info and 5 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

This update makes the app fully free, lets you flag products as known reaction triggers with severity and symptoms, adds a Products timeline in Calendar and a Scan button in the diary, and includes fixes to sleep quality colours, onboarding, and screen layout.