# Four Days — Rotation diet made easy

> Rotation diet tracker for managing food allergies and intolerances. (iPhone/iPad app by Sergio Gutierrez Mota.)

- Source: https://appshunter.io/ios/app/four-days/id1467531634 (this page in markdown: same URL + `.md`)
- Developer: [Sergio Gutierrez Mota](https://appshunter.io/developer/1467531633)
- Category: Health & Fitness, Food & Drink
- Price: $1.99
- Rating: 2.63/5 from 8 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.4 · 23 MB
- Languages: English
- Released: 2019-06-13
- Data updated: 2026-06-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/four-days/id1467531634/reviews.md

## What is Four Days?

If you have multiple food allergies, one of the best ways to help yourself is to “rotate” your foods, or eat a rotation diet. Four days allow you to keep track of what you are eating to avoid repetition and prevent you from forming new food intolerances

What is a rotation diet?

A rotation diet is a system of controlling food allergies by eating biologically related foods on the same day and then waiting at least four days before eating them again. Such a diet can help those with food allergies in several ways and may help prevent the development of allergies to new foods.

Why rotate your foods?

1. We are biologically designed to rotate foods.

Man is meant to eat with the seasons. We are not designed to eat avocado every single day, because nature does not allow for it. In nature (or even 100-150 years ago) we ate what was local and available.
  
2. Rotation allows for more nutrient diversity.

If we eat avocado as our main source of fat every day, we’re missing out on all of the healthy fats in olive oil, coconut, and beef tallow. Different foods come with different nutrients and we need variety for vibrancy!

3. Eating the same foods constantly can cause food intolerances and impede gut healing

Any food, if eaten repetitively, can cause food allergies especially if we have gut issues.
Why? Like we stated above, our bodies aren’t designed to eat the same thing over and over again. And if we have permeable intestines and are eating avocado daily, our immune system is reacting to the avocado over, and over, and over again. Eventually it becomes too much.
Surely, the goal is to heal the gut. However, an important piece of gut healing is to remove inflammation, and stopping new intolerances from forming. Thus, a rotation diet can be an amazing strategy within a gut healing template.

## Key features

- Rotation diet tracking
- Avoid food repetition
- Prevent new intolerances
- Enhance nutrient diversity
- Support gut healing

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/four-days/id1467531634/reviews.md

### 3/5 — Lacking

*2022-03-28*

I was really excited to find this app but I am already having issues with set up. It will not let me add foods in the new group I made for fats. So far that is as far as I have gotten. Haven’t put it to use yet to see if it is more helpful than the schedule I am currently using.  I was hoping for more food options. The app looks like it has potential and would be a great resource for those of us that need to follow a rotation diet for gut health.

### 4/5 — Needs work, but it does help.

*2022-02-18*

This app helps me keep track of the respective foods for each day. It desperately needs a delete button for lists and added food items. I made a list by mistake and now I'm stuck with it… and my OCD stings a bit.

### 2/5 — Help!

*2021-03-17*

This app is not allowing me to add foods. When I add the name of the food it won’t let me implement that food until a photo is taken of it. The app won’t let me take the photo. Please advise.

**Developer response:** Hi virginiagracie!

We hear you! We are going to run some tests on our end, in the meantime, can you make sure you granted permissions to your camera and gallery?

### 1/5 — Lots of potential

*2021-02-25*

Hi. I downloaded the app because the reply on the previous review said custom categories were added. These were added to intolerance food list, but I can’t add foods to the category? It is also not possible to add custom food that I am allowed to eat. I can also not review my food intolerance list? Please help. I really like the idea that the app can tell you when the food is available again.

**Developer response:** Hi keeplearningdaily,

First and foremost, thank you for downloading the app. Now for the problem at hand, the app should allow you to create custom categories from the "Configuration" screen. It will only let you add new food to custom categories though. To add new food just click on the search button and look for the food you want to add, a new option will appear to create your food. We know this is not the most obvious way to do it so we are now working on a better, more intuitive solution. Finally, to review your food intolerance list, you have to go to the configuration screen (the clog icon). 

Hope we answered your doubts, we are working on making the app more user-friendly and will release a new version soon.

### 1/5 — Not enough food choices

*2021-01-30*

This app doesn’t even include Beef in the protein choices. It needs a lot more variety, and the ability for users to customize their lists by easily adding new foods (perhaps with an image gallery to choose from?)

I wish I could get a refund.

**Developer response:** Hi Lemmott,

You now have the possibility to add new food by going to the search screen and looking for the new food you want to add, you'll notice a new "Add food" button appears (not the most intuitive but we are working on it as I write this).

### 3/5 — Beautiful app, simple to use

*2021-01-22, version 1.0.15*

This is a useful app, but I hope it will be made more customizable - like adding pictures of your own food items, such as chocolate, coffee (both of which I should rotate, or avoid entirely!). There are also many foods that I do not have access to where I live. They just take up space.

### 5/5 — More Categories

*2020-03-24, version 1.0.14*

Awesome app! Could you make categories such as nuts and seeds, oils?

### 5/5 — Yeah!!!!! Just what I need!!!

*2020-02-25*

This app is amazing!!! I’ve been struggling with food sensitivities in and off for over 15 years and this is just what I need to avoid future sensitivities.  As a feature request... can you add “fats/oils”?  I’m sensitive to safflower, olive, coconut, and soybean oils so that doesn’t leave many options and I don’t want to create problems with the few remaining options like avocado, almond, apricot seed, sunflower, canola!  Fingers crossed!

**Developer response:** Hi! We are so glad you liked it :) We included a new feature to add your own ingredients to the app although we didn't give it much visibility. If you try searching for a new food and it's not there, you'll see a button to add your own. Let us know if that works for you.

### 4/5 — Glad This App Is Available

*2019-08-25*

Hello. I am the first person to review this app. I usually don’t post reviews, but I want the developer to know I appreciate that this app is available. I like the simple design and can see how it will help me rotate foods and will also help me to think of foods I usually wouldn’t consider. At the moment it seems somewhat limited, but I think that is because it is new. In terms of improvements, I would like to see an option to add in foods that are not included in the current selection, such as Honeydew or Cantaloupe or different varieties of fish that are local to me. I would also like to see nuts and seeds added to the app. I’m looking forward to seeing how the app develops over time. Thank you for creating it.

**Developer response:** Hello Futurepetvet,

Thank you so much for your words. You can now add your own custom foods and categories in the app. We hope you like it!

Thanks again for your review!

## Frequently asked questions about Four Days

### What is Four Days?

Four Days is a paid app designed to help users manage food allergies by implementing a rotation diet. It allows you to track your food intake to avoid repetition and prevent the development of new food intolerances.

### How does Four Days help with food allergies?

By using Four Days, you can implement a rotation diet, which involves eating certain foods and then waiting at least four days before consuming them again. This method can help prevent your immune system from developing new sensitivities.

### What is the price of Four Days?

Four Days is a paid application priced at $1.99. This is a one-time purchase, and no subscription is required.

### What devices does Four Days support?

Four Days is available for iPhone and iPod devices. It is designed for iOS users.

### How often is Four Days updated?

The latest version of Four Days is 1.0.22, which was last updated on August 29, 2024. Updates are released periodically to improve functionality and address any issues.

### What is the age rating for Four Days?

Four Days has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### Does Four Days have ads?

No, Four Days does not contain advertisements. As a paid application, it offers an ad-free experience for users.

### What are the main benefits of using a rotation diet with Four Days?

Using Four Days for a rotation diet can lead to more nutrient diversity by encouraging the consumption of a wider range of foods. It also aids in gut healing by reducing inflammation and preventing the formation of new food intolerances.

## Version history (last 5 releases)

### 1.0.22 — 2024-08-29

Fixed an issue with copies that caused some foods to have random names.

### 1.0.20 — 2024-08-29

The same app, new interface. We've made a huge effort to re-publish the app with updated tools so we can bring you new improvements more frequently.

### 1.0.16 — 2021-03-24

In this version we fixed a bug that prevented users from uploading their custom food pictures. We also added a new button in the Configuration screen to make it easier to add custom food.

### 1.0.15 — 2020-09-17

You can now create your own food groups! Directly from the settings screen! Fats, Dairy products or Sweets, you name it.

### 1.0.14 — 2019-11-05

You can now create your own food within the application. Just look for it from the search option and tap on the new item that will appear. 

Besides that, we included many (many!) fixes to navigation, styling and usability.

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## More apps by Sergio Gutierrez Mota

- [Bataba](https://appshunter.io/ios/app/bataba/id1562029104)
- [Trufario](https://appshunter.io/ios/app/trufario/id6473553839)
- [do-it-myself](https://appshunter.io/ios/app/do-it-myself/id6737191775)

All apps by Sergio Gutierrez Mota: https://appshunter.io/developer/1467531633

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*