# AllergyFoodDiary vs AllergyFlow

AllergyFoodDiary and AllergyFlow are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. AllergyFoodDiary sells 1 one-off in-app purchase and AllergyFlow sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | AllergyFoodDiary | AllergyFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 4 MB | 11 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Fu Kang Heng Development Co., Ltd.](https://appshunter.io/developer/1863837413) | [Oleksandr Prokhorov](https://appshunter.io/developer/1875671255) |

## What reviewers say

### AllergyFoodDiary

[App page](https://appshunter.io/ios/app/allergyfooddiary/id6774412872)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diary Pro Lifetime | $2.99 | one-time |


### AllergyFlow

[App page](https://appshunter.io/ios/app/allergyflow/id6785293848)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is AllergyFoodDiary free?

AllergyFoodDiary is free to download, with in-app purchases available.

### Is AllergyFlow free?

AllergyFlow is free to download, with in-app purchases available.

### Do AllergyFoodDiary or AllergyFlow have ads?

Neither AllergyFoodDiary nor AllergyFlow shows ads.

### Which is updated more often, AllergyFoodDiary or AllergyFlow?

AllergyFoodDiary ships an update every 2 months, and AllergyFlow every 2 months. Most recently, AllergyFoodDiary was updated on November 2, 2026 and AllergyFlow on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*