Comparison

Histamine Intolerance Scanner vs Mast'O

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Histamine Intolerance Scanner

This app helps you identify ingredients that may cause histamine intolerance. It provides a searchable database of over 1000 ingredients with varying intolerance levels.

Highlights
  • Searchable ingredient database
  • Over 1000 ingredients listed
  • Intolerance level indicators
  • Quick ingredient lookup
Features
Read full description

Is this food right for you? Scan a product's ingredient list or barcode and see at a glance what is well or poorly tolerated with histamine intolerance. SCAN PRODUCTS • Take a photo of the ingredient list: the text is read right on your phone, in English or French • Or scan the barcode: the ingredients come from the Open Food Facts database • Every recognized ingredient gets a rating from 0 (well tolerated) to 3 (very poorly tolerated), additives and E numbers included (E330, E621…) • Words like "smoked", "aged", "cured", "fermented" or "canned" on the label are taken into account FRESHNESS CHANGES EVERYTHING • Histamine builds up over time: fresh minced meat is well tolerated, the same meat kept a few days in the fridge much less so • The app warns you whenever a food can get riskier: pre-packed, leftovers, fish that isn't very fresh, aged cheese… • "Cautious scan" option: when the label says nothing, the scan uses the worst case 675 RESEARCHED FOODS • Meat, fish, dairy, fruit, vegetables, grains, drinks, spices and additives • Ratings aligned with the SIGHI food compatibility list and backed by published content measurements • For each food: why it can be a problem (high in histamine, other amines, liberator, DAO blocker), variants by preparation, and sources you can open • When data is thin, the app says so YOUR OWN EXPERIENCE • Rate how you tolerate each food: your rating shows next to the reference rating, in lists and scan results • Find all your ratings in a dedicated tab SIMPLE AND PRIVATE • Free, no ads, no account needed • Your ratings stay on your phone • In English and French This information is a guide only and does not replace advice from a doctor or dietitian.

About

Mast'O

Features
Read full description

Application pour smartphones et tablettes destinée aux personnes atteintes de mastocytoses ou syndrome d’activation mastocytaire (SAMA). Cette application contient de nombreuses fonctionnalités pour vous aider au suivi de votre maladie dans votre vie quotidienne. Parmi ces fonctionnalités : - Une page profil pour renseigner les informations importantes de votre dossier médical (antécédents, allergies etc…) - Un répertoire pour enregistrer les coordonnées de vos médecins. - Un journal de bord pour documenter vos symptômes, état de santé et/ou moral. - L’ajout de photos pour vos symptômes visibles. - Un porte document pour toujours avoir vos documents importants sur vous comme les comptes rendus d’examens. - Créer des rappels pour vos rendez-vous. - Préparer votre prochain rendez-vous avec votre médecin. - Créer des rappels pour vos prises de médicaments. - Un historique de vos traitements. - Des liens vers les recommandations spécifiques à la maladie utiles aux professionnels de santé qui prennent en charge et vers la carte des centres maladies rares - Générer un rapport PDF pour partager facilement vos observations. - Un thème contrasté pour un affichage optimisé pour de forts contrastes. - Ajout de symptômes fréquents pour enrichir vos observations plus rapidement. - Un menu “Paramètres & données” pour gérer vos thèmes, exports et imports depuis un seul endroit. - Import/Export pour sauvegarder et restaurer vos données sécurisées sur un nouveau téléphone en toute simplicité. Aucun compte n’est requis. Les données sont stockées sur votre appareil et non sur un cloud. Une fonction d’export des données est prévue pour que vous puissiez migrer vos données vers votre nouvel appareil si besoin.

Screenshots

Histamine Intolerance Scanner4 screens
Mast'O4 screens

Verdict

The call

The clearest difference is update cadence: Histamine Intolerance Scanner at every 3 days against Mast'O's every 14 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Histamine Intolerance Scanner ships an update every 3 days, Mast'O every 14 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

Scorecard1 real difference · 8 level
Histamine Intolerance Scanner versus Mast'O: the parameters behind the verdict, then further details
ParameterHistamine Intolerance ScannerMast'O
PriceFreeFree
Rating3.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 3 days — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.0 — better
Further details — not scored
Size45 MB27 MB
Age rating4+12+
DeveloperJeremy RoustangFilière MaRIH

In-app purchases

None

Histamine Intolerance Scanner

No in-app purchases

None

Mast'O

No in-app purchases

Questions

Is Histamine Intolerance Scanner free?
Histamine Intolerance Scanner is free to download, with no in-app purchases.
Is Mast'O free?
Mast'O is free to download, with no in-app purchases.
Do Histamine Intolerance Scanner or Mast'O have ads?
Neither Histamine Intolerance Scanner nor Mast'O shows ads.
Which is updated more often, Histamine Intolerance Scanner or Mast'O?
Histamine Intolerance Scanner ships an update every 3 days, and Mast'O every 14 months. Most recently, Histamine Intolerance Scanner was updated on October 24, 2026 and Mast'O on October 22, 2026.

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