Is there an app that tells me which foods are fine for me?

No app can clear a food medically. What a food and feeling journal can show is which meals you ate without trouble, again and again. Ojafi records how each meal sat and plans from the ones that went well; mySymptoms shows which foods are associated with symptoms, which by elimination leaves the rest.

How long before an app like this is useful?

Expect two to four weeks of regular entries. One bad evening after a meal tells you very little; the same food before several bad evenings tells you something.

Can an app tell me I have a food intolerance?

No. An app can show a pattern worth taking to a GP or dietitian. Only a clinician can test for an intolerance or an allergy.

Food apps that go by how food makes you feel

Updated 12 November 2026. Written by the Ojafi team from the sources listed below. How we write guides

A few apps build advice from how you respond to food, not from a fixed list. mySymptoms and FODMAP Snap look for links between what you log and your symptoms. ZOE gives personalised food advice informed by its nutrition research. Ojafi asks how each meal sat, for bloating, energy or fullness, and plans meals around what you find, including the foods that were fine.

Two ways an app can be personal

Most food apps personalise from who you are: your age, weight, goal and the diet you picked. That gives a calorie target and a food list, and it is the same list for everybody with your numbers.

A smaller group personalises from how you respond. You log a meal, then how you felt afterwards, and the app works from your own record. That is slower, because it needs a few weeks of entries, and it is the only kind that can tell two people with the same numbers different things.

The apps that go by your response

From each app's UK App Store listing on 12 November 2026. Ratings and prices change; check the listing before you choose.
App	What you tell it	What it gives back	App Store rating
mySymptoms Food Diary	Food, drink, daily factors and symptoms	Which of them are associated with your symptoms	4.6 from 815 ratings
FODMAP Snap	A meal and how your gut reacts	Which foods are behind your symptoms, within low FODMAP	4.6 from 147 ratings
Bearable	Symptoms, mood and anything you do	How what you do relates to how you feel	4.7 from 914 ratings
ZOE: Personalized Nutrition	A photo of your meal	Nutrition feedback and personalised food advice	4.8 from 27,408 ratings
Ojafi	A meal, and one short question on how it sat	Meals planned around what sat well, with recipes and a grocery list	Not yet rated

Foods that are fine count too

Most tools in this area are built to find what to avoid. After a few weeks you have a list of suspects and a smaller plate. The entries where you ate something and felt fine get ignored, and they are most of your diary.

Those entries are useful. A food you have eaten ten times without trouble is one you can stop worrying about, and a week of meals built from foods like that is easier to keep to than a list of exclusions. This is the part Ojafi is built around: it asks how each meal sat and plans from the ones that went well. See how to find the foods that make you bloated for doing the same thing by hand.

Ojafi

Ojafi is our app, so weigh this accordingly. It is a meal planner with a food and feeling journal. You record a meal by photo, voice, barcode or text, then answer one short question about how it sat: bloating, energy or fullness. It plans meals around what you find, with recipes, cooking steps and a grocery list. It works in a browser and on iPhone, and it is free to start.

What none of them can do

A pattern in a diary is a prompt to look closer, not proof. Meals contain many foods, symptoms can arrive hours later, and stress, sleep and your cycle all move the result. The NHS advises getting medical advice before you cut foods out of your diet, and a suspected allergy needs proper testing.

Questions people also ask

Is there an app that tells me which foods are fine for me?: No app can clear a food medically. What a food and feeling journal can show is which meals you ate without trouble, again and again. Ojafi records how each meal sat and plans from the ones that went well; mySymptoms shows which foods are associated with symptoms, which by elimination leaves the rest.
How long before an app like this is useful?: Expect two to four weeks of regular entries. One bad evening after a meal tells you very little; the same food before several bad evenings tells you something.
Can an app tell me I have a food intolerance?: No. An app can show a pattern worth taking to a GP or dietitian. Only a clinician can test for an intolerance or an allergy.

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Sources

Ojafi gives general food guidance. It is not medical advice and does not diagnose or treat any condition. See our medical disclaimer.