# CelsiUSA vs Pollen Coach

The clearest difference is in-app purchases: Pollen Coach at none against CelsiUSA's 1. Pollen Coach also leads on update cadence (every 9 days vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CelsiUSA sells 1 one-off in-app purchase. Pollen Coach asks for nothing beyond the download.

CelsiUSA ships an update every 7 months, Pollen Coach every 9 days. The most recent releases landed on October 27, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | CelsiUSA | Pollen Coach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pollen-coach-allergy-forecast/id6781917645/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 12 MB | 4 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Myers](https://appshunter.io/developer/1636750818) | [Cheng Yang](https://appshunter.io/developer/6777511137) |

## What reviewers say

### CelsiUSA

[App page](https://appshunter.io/ios/app/celsiusa/id6449006027)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Pollen Coach

[App page](https://appshunter.io/ios/app/pollen-coach-allergy-forecast/id6781917645)

This app provides daily pollen risk forecasts and personalized coaching to help you plan outdoor activities. It combines local pollen data with your sensitivities to offer practical advice and reminders.

**Highlights:** Daily pollen risk forecasts, AI-assisted daily coaching, 5-day pollen outlook, Activity planning tips, Daily reminders, Sources & Safety information

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CelsiUSA free?

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

### Is Pollen Coach free?

Pollen Coach is free to download, with no in-app purchases.

### Do CelsiUSA or Pollen Coach have ads?

Neither CelsiUSA nor Pollen Coach shows ads.

### Which is updated more often, CelsiUSA or Pollen Coach?

CelsiUSA ships an update every 7 months, and Pollen Coach every 9 days. Most recently, CelsiUSA was updated on October 27, 2026 and Pollen Coach on October 12, 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.*