# TrackBack Symptom Tracker vs Plotsy

The clearest difference is in-app purchases: TrackBack Symptom Tracker at none against Plotsy'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. Plotsy sells 3 in-app purchases, starting at $4.99 per month. TrackBack Symptom Tracker asks for nothing beyond the download.

## The numbers

| Metric | TrackBack Symptom Tracker | Plotsy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 44 MB | 9 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) | [Serhii Tykhonenko](https://appshunter.io/developer/1895816215) |

## What reviewers say

### TrackBack Symptom Tracker

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Plotsy

[App page](https://appshunter.io/ios/app/plotsy-symptom-diary/id6778679232)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $29.99 | per year |
| Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is TrackBack Symptom Tracker free?

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

### Is Plotsy free?

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

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

Neither TrackBack Symptom Tracker nor Plotsy shows ads.

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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.*