Best Food Allergy Tracker Apps UK (2026)

Food Allergies in the UK: The Numbers

Food allergies are more common than many people realise, and the UK has some of the highest rates in Europe. Understanding the scale helps explain why allergy tracker apps have become essential tools for millions of people.

Hospital admissions for food-related anaphylaxis have risen steadily over the past two decades. The FSA's research consistently shows that accidental exposure — often from mislabelled or unclear packaging — is a leading cause of allergic reactions. This is precisely the problem that allergy tracker apps are designed to address: giving you a faster, more reliable way to check what is in your food.

Natasha's Law and UK Labelling Requirements

In October 2021, Natasha's Law came into effect across the UK, requiring full ingredient labelling on all prepacked for direct sale (PPDS) foods. The law was introduced following the death of Natasha Ednan-Laperouse, who suffered a fatal allergic reaction to a Pret a Manger baguette that did not carry allergen labelling.

Under the UK Food Information Regulations 2014, food businesses must clearly declare any of the 14 major allergens present in their products. These allergens must be emphasised (typically in bold) within the ingredients list. The 14 allergens are:

While labelling laws have improved enormously, they are not foolproof. Labels can be small, busy environments make reading them difficult, and "may contain" warnings — which are voluntary, not legally required — vary widely between manufacturers. An allergy tracker app acts as a second pair of eyes.

What to Look For in a Food Allergy Tracker App

Not all allergy apps are equal. Before choosing one, consider these criteria based on what actually matters for day-to-day allergy management in the UK:

1. Coverage of all 14 UK allergens: Some apps only cover the "big 8" (common in the US). For the UK, you need all 14 major allergens recognised under UK Food Information Regulations, including less common ones like lupin, molluscs, and sulphites.
2. Barcode scanning: The ability to scan a product barcode and instantly see allergen warnings is arguably the single most useful feature. It saves time in the supermarket and reduces the risk of misreading a label.
3. Symptom and reaction diary: Logging what you ate and any symptoms you experienced helps you and your GP or dietitian identify patterns over time. This is especially valuable if you suspect an intolerance but have not yet pinpointed the trigger.
4. Cross-contamination and "may contain" warnings: Legally, manufacturers are not required to include "may contain" warnings. But the best apps flag them when the data is available, because for people with severe allergies, precautionary labelling matters.
5. Offline mode: Mobile signal in supermarkets is notoriously patchy. An app that works offline — at least for barcode scanning against a cached database — is far more practical than one requiring a constant internet connection.
6. UK product database: A large database is only useful if it contains products sold in the UK. Apps built for the US market often have poor coverage of Tesco, Sainsbury's, Asda, and Aldi own-brand products.
7. Medical export: The ability to export your food diary or symptom log as a PDF or CSV to share with your GP or dietitian makes clinical appointments more productive.

The 6 Best Food Allergy Tracker Apps (2026)

Feature Comparison Table

A side-by-side look at how each app performs on the features that matter most for allergy management in the UK.

Which App Is Right for You?

If you want one app that does the most: NutraSafe gives you barcode scanning, all 14 allergens, additive warnings, and nutrition tracking in one place, with a genuinely usable free tier. If you prefer to scan barcodes rather than read every label, it flags allergens instantly.

If you manage multiple overlapping conditions: Fig is the strongest option for people juggling allergies, intolerances, and dietary restrictions simultaneously. Its ingredient-by-ingredient breakdown is more detailed than most.

If you want a free label-reading tool: Soosee is free, simple, and works on any physical label in any language. It is a great companion to a barcode scanner for products that are not in any database.

If you shop online at Tesco or Sainsbury's: Spoon Guru integrates directly with UK supermarket websites, making it useful for filtering safe products during your online shop.

If you mainly need allergy-safe recipes: Yummly has the largest recipe database with allergen filtering. It is not a tracker, but it is excellent for meal planning inspiration.

If you already use MyFitnessPal: Its allergen features are limited, but if you are already paying for premium and primarily want calorie tracking with some allergen awareness, it can serve both purposes — just do not rely on it for instant allergen alerts.

Living With Food Allergies in the UK: Practical Tips

An app is one tool in a broader toolkit. Here are practical steps recommended by the FSA and NHS for managing food allergies safely day to day.

Reading Labels Correctly

Under UK law, the 14 major allergens must be emphasised (usually in bold) within the ingredients list. However, the FSA's label guidance notes that allergens can appear under unfamiliar names. Casein is milk. Lecithin is often derived from soy. Semolina is wheat. Familiarising yourself with these alternative names is important, and it is one area where apps can help — they can catch ingredient names you might not recognise.

Eating Out Safely

Under the Allergen Information for Consumers Regulations 2014, restaurants, cafes, and takeaways in the UK must provide allergen information for all the food they sell. They can do this verbally, in writing, or by directing you to ask a staff member. In practice:

• Always ask your server about allergens, even if the menu has symbols. Kitchen processes change.
• Be specific: say "I have a peanut allergy" rather than "I don't eat peanuts." The word "allergy" signals severity.
• Ask about cooking oils, shared fryers, and preparation surfaces — cross-contamination is a common cause of reactions when eating out.
• If you are not confident the staff understand your needs, it is always better to choose a different dish or venue.

Cross-Contamination Awareness

"May contain" or "produced in a factory that also handles" warnings are voluntary in the UK — they are not required by law. This means the absence of a "may contain" warning does not guarantee a product is free from traces of an allergen. The FSA recommends that people with severe allergies treat "may contain" warnings seriously, and consider contacting the manufacturer directly if you are unsure about a product.

At home, practical steps include using separate chopping boards, cleaning surfaces thoroughly between preparing different foods, and storing allergen-containing products separately.

Emergency Planning

If you have been prescribed an adrenaline auto-injector (such as an EpiPen or Jext), the NHS advises carrying two at all times. Make sure people around you — family, friends, colleagues — know where your auto-injectors are and how to use them. Consider wearing medical identification (a bracelet or card) that states your allergy, particularly if your allergy can cause anaphylaxis.

Keeping a record of your allergy, your triggers, and your medication in an app means the information is always with you on your phone, which can be helpful in an emergency or when visiting a new GP.

Frequently Asked Questions

What are the 14 allergens in the UK?

Under the UK Food Information Regulations 2014, the 14 major allergens that must be declared are: celery, cereals containing gluten (including wheat, rye, barley, and oats), crustaceans, eggs, fish, lupin, milk, molluscs, mustard, tree nuts (almonds, hazelnuts, walnuts, cashews, pecans, Brazil nuts, pistachios, and macadamia nuts), peanuts, sesame, soybeans, and sulphur dioxide/sulphites (at concentrations above 10mg/kg or 10mg/litre).

Can a food allergy tracker replace medical advice?

No. Allergy tracker apps are practical tools for day-to-day label reading, scanning, and symptom logging, but they cannot diagnose allergies or replace medical guidance. If you suspect you have a food allergy, see your GP. They may refer you to an NHS allergy clinic for proper testing (skin prick tests or blood tests). An app can complement professional advice by helping you track what you eat and any symptoms, which is useful information to bring to appointments.

Do allergy tracker apps work with UK supermarket products?

Most of the apps reviewed here include UK products, but coverage varies. NutraSafe and Spoon Guru are specifically built around UK product data and cover major retailers well. Fig's UK database is growing but has gaps, particularly with own-brand products. MyFitnessPal has reasonable UK coverage due to its large community-submitted database, though data quality can be inconsistent. Soosee works with any label regardless of country, since it reads the text directly from the packaging.

Is NutraSafe free for allergy tracking?

Yes. Setting your allergen profile and receiving instant allergen alerts is included in the free tier. You get 5 barcode scans per day at no cost, which is enough for a typical shopping trip for a few items. For unlimited daily scans, the premium plan is £2.99 per month.

What is the difference between a food allergy and intolerance?

A food allergy involves the immune system. Even a tiny amount of the trigger food can cause a reaction, which in severe cases can include anaphylaxis — a life-threatening emergency. Common allergies include peanuts, tree nuts, milk, and eggs.

A food intolerance does not involve the immune system and is generally less dangerous, though it can still be very uncomfortable. Symptoms like bloating, stomach cramps, and diarrhoea usually depend on the amount consumed. Lactose intolerance is a common example.

The distinction matters because management differs. Allergies require strict avoidance and emergency planning. Intolerances may allow small amounts. The NHS recommends seeing a GP for proper diagnosis rather than self-diagnosing, as some symptoms overlap. For more detail, see our guide: Food Allergy vs Intolerance: UK Differences.

Do I need an allergy tracker app if I have Natasha's Law labelling?

Natasha's Law was a major step forward, requiring full ingredient labelling on prepacked for direct sale foods. However, an app is still useful for several reasons:

• Reading small-print labels in a busy shop is easy to get wrong, especially under time pressure.
• Many products carry "may contain" warnings that are not covered by Natasha's Law.
• Scanning a barcode is faster and more reliable than reading every line of every label.
• A symptom diary helps you and your GP track reactions over time, which labels alone cannot do.
• Some allergens appear under unfamiliar chemical or technical names that an app can catch.

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