# TrackBack Symptom Tracker vs Pollira

The clearest difference is in-app purchases: TrackBack Symptom Tracker at none against Pollira's 3. TrackBack Symptom Tracker also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Pollira sells 3 in-app purchases, starting at $2.99 per month. TrackBack Symptom Tracker asks for nothing beyond the download.

## The numbers

| Metric | TrackBack Symptom Tracker | Pollira |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 weeks |
| Size | 44 MB | 95 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Geoffrey Jensen](https://appshunter.io/developer/1877156841) | [Tomohito Kii](https://appshunter.io/developer/1689523321) |

## What reviewers say

### TrackBack Symptom Tracker

[App page](https://appshunter.io/ios/app/trackback-symptom-tracker/id6759174933)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pollira

[App page](https://appshunter.io/ios/app/pollira-allergy-tracker/id6762492866)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Annual Premium | $19.99 | per year |
| Lifetime Premium | $49.99 | one-time |


## Frequently asked questions

### Is TrackBack Symptom Tracker free?

TrackBack Symptom Tracker is free to download, with no in-app purchases.

### Is Pollira free?

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

### Do TrackBack Symptom Tracker or Pollira have ads?

Pollira shows ads; TrackBack Symptom Tracker does not.

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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.*