# AllergyFlow vs Runny day

The clearest difference is update cadence: Runny day at every 5 days against AllergyFlow's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AllergyFlow sells 2 in-app purchases, starting at $4.99 per 7 days and Runny day sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

AllergyFlow ships an update every 2 months, Runny day every 5 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AllergyFlow | Runny day |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 10 MB | 23 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Oleksandr Prokhorov](https://appshunter.io/developer/1875671255) | [Ivan Dotsenko](https://appshunter.io/developer/551628923) |

## What reviewers say

### 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 |


### Runny day

[App page](https://appshunter.io/ios/app/runny-day-allergy-tracker/id6806360953)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is AllergyFlow free?

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

### Is Runny day free?

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

### Do AllergyFlow or Runny day have ads?

Neither AllergyFlow nor Runny day shows ads.

### Which is updated more often, AllergyFlow or Runny day?

AllergyFlow ships an update every 2 months, and Runny day every 5 days. Most recently, AllergyFlow was updated on October 28, 2026 and Runny day on October 31, 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.*