# TrackBack Symptom Tracker vs Tidera

The clearest difference is in-app purchases: TrackBack Symptom Tracker at none against Tidera's 3. TrackBack Symptom Tracker also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Tidera sells 3 in-app purchases, starting at $3.99 per month. TrackBack Symptom Tracker asks for nothing beyond the download.

## The numbers

| Metric | TrackBack Symptom Tracker | Tidera |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 44 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Geoffrey Jensen](https://appshunter.io/developer/1877156841) | [Edward Felthuis](https://appshunter.io/developer/1888496044) |

## What reviewers say

### TrackBack Symptom Tracker

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Tidera

[App page](https://appshunter.io/ios/app/tidera-migraine-diary/id6785041979)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tidera Premium - Monthly | $3.99 | per month |
| Tidera Premium - Yearly | $22.99 | per year |
| Tidera Premium - Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is TrackBack Symptom Tracker free?

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

### Is Tidera free?

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

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

Neither TrackBack Symptom Tracker nor Tidera shows ads.

---

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