# Trace Back vs PAIR

The clearest difference is in-app purchases: Trace Back at none against PAIR's 10. Trace Back also leads on ads (none vs shown) and iOS requirement (14.0 vs 16.4). On price and device support there is nothing between them.

Both are free to download. PAIR sells 10 one-off in-app purchases. Trace Back asks for nothing beyond the download.

## The numbers

| Metric | Trace Back | PAIR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Size | 33 MB | 30 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [洪升 曹](https://appshunter.io/developer/1846114663) | [Mustafa Ofluoglu](https://appshunter.io/developer/6794329369) |

## What reviewers say

### Trace Back

[App page](https://appshunter.io/ios/app/trace-back/id6760021737)

**In-app purchases:** none


### PAIR

[App page](https://appshunter.io/ios/app/pair-connect-and-fill/id6812477797)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Lives | $2.99 | one-time |
| 5 Hints | $2.99 | one-time |
| Mini Pack | $3.99 | one-time |
| 30 Lives | $5.99 | one-time |
| 15 Hints | $5.99 | one-time |
| Remove Ads | $6.99 | one-time |
| Smart Pack | $8.99 | one-time |
| 75 Lives | $11.99 | one-time |
| 40 Hints | $12.99 | one-time |
| Mega Pack | $17.99 | one-time |


## Frequently asked questions

### Is Trace Back free?

Trace Back is free to download, with no in-app purchases.

### Is PAIR free?

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

### Do Trace Back or PAIR have ads?

PAIR shows ads; Trace Back 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.*