Lactose.help: Lactose Scanner
Scan any food for lactose
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Scan a barcode, get the maximum lactose threshold per 100g in 2 seconds. 3 free daily scans, database of millions of products.
Living with lactose intolerance should not mean second guessing every grocery run. Lactose.help scans a product barcode and tells you in 2 seconds whether you can eat it.
Our Lacto-Score, inspired by Nutri-Score, rates every product from A to E based on the maximum lactose risk per 100g. No more deciphering labels, no more anxiety in the dairy aisle.
STOP PAYING FOR "LACTOSE FREE" MARKETING
Products labeled "lactose free" are often significantly more expensive than their standard equivalents. But hundreds of regular products (chocolate, bread, deli meats, ready meals, cheese, snacks) are naturally low in lactose or lactose free, without any label highlighting it. Lactose.help helps you find them in any aisle, at normal prices.
THE LACTO-SCORE
Each grade represents a maximum lactose threshold per 100g, not an exact measurement. You get a clear risk ceiling to compare against your personal tolerance.
- A: lactose free (0g per 100g)
- B: very low (up to 0.5g per 100g)
- C: moderate (up to 1g per 100g)
- D: high (up to 1.5g per 100g)
- E: very high (over 1.5g per 100g)
WHAT THE SCIENCE SAYS
According to the European Food Safety Authority (EFSA) scientific opinion, most lactose-intolerant individuals tolerate up to 12g of lactose in a single dose without notable symptoms, and the most sensitive generally remain symptom-free below 3 to 5g per dose. The Lacto-Score helps you stay under your personal threshold without giving up everyday products.
Tolerance varies from person to person. The Lacto-Score tells you the risk, not a personal guarantee. To determine your individual threshold, talk to a healthcare professional or see the companion book.
HOW IT WORKS
1. Scan the barcode with your camera
2. Our database identifies hidden dairy ingredients (whey, casein, milk powder, lactose, milk solids, etc.)
3. You get an A to E score with a clear recommendation
WHO IT'S FOR
Lactose.help is built for people with lactose intolerance, meaning a digestive enzyme deficiency. It is not designed for people with milk protein allergies, which require total avoidance under medical supervision.
FREE, WITH 3 SCANS PER DAY
The free version gives you the scanner, the full Lacto-Score, and your last 5 scans. You can scan 3 products per day at no cost.
UPGRADE TO STANDARD (3.99 EUR per month)
- Unlimited scans
- Full scan history
- Family sharing for up to 5 members (one subscription, whole household covered)
UPGRADE TO PREMIUM (9.99 EUR per month)
- Everything in Standard
- AI label photo analysis: when a product is not in our database, take a photo of the ingredient list and the AI computes the Lacto-Score
- Priority support
A VALIDATED METHODOLOGY
The Lacto-Score is based on the methodology of the companion book "Better Living with Lactose Intolerance", whose medical content has been reviewed and validated by registered dietitians. You get a structured, professionally vetted approach, not an arbitrary list.
A COMPANION BOOK
For deeper guidance, "Better Living with Lactose Intolerance" (available in English and French) covers the personal tolerance protocol, hidden lactose sources, restaurant strategies, and lactose free recipes. Written by Gauthier de Valensart, validated by registered dietitians.
PRIVACY
Your scans belong to you. We do not sell your data and we do not run targeted ads.
Download Lactose.help, scan your first product, and take back control of what you eat.
Terms : https://www.lactose.help/legal/terms
Privacy Policy : https://www.lactose.help/legal/privacy
Version 1.046
- Stability improvements
- Performance optimizations
Thanks for the feedback, we read every message.
Terms of Use: https://www.lactose.help/legal/terms
Privacy Policy: https://www.lactose.help/legal/privacy
The developer, Signal to Noise, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 19.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Contains
User-Generated Content
Health or Wellness Topics
- In-App Purchases
Yes
- Monthly Standard 3,99 €
- Annual Premium 109,99 €
- Monthly Premium 9,99 €
- Annual Standard 44,99 €
- Provider
Signal to Noise (BE)
- Signal to Noise (BE) has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
- DUNS Number
371924193 - Address
Chemin du Cyclotron 6
1348 Ottignies-Louvain-la-Neuve
Belgium - Phone Number
+32 23188455 - Email
hello@lactose.help
- Copyright
- © 2026 Lactose.help