# PAIRFS ZoneX vs IM Tri Tracker

The clearest difference is in-app purchases: PAIRFS ZoneX at none against IM Tri Tracker's 1. PAIRFS ZoneX also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. IM Tri Tracker sells 1 one-off in-app purchase. PAIRFS ZoneX asks for nothing beyond the download.

PAIRFS ZoneX ships an update every 3 weeks, IM Tri Tracker every 11 days. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PAIRFS ZoneX | IM Tri Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Size | 27 MB | 25 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PAIRFS](https://appshunter.io/developer/1834686950) | [Jack Wallner](https://appshunter.io/developer/1891233967) |

## What reviewers say

### PAIRFS ZoneX

[App page](https://appshunter.io/ios/app/pairfs-zonex/id6751342062)

**In-app purchases:** none


### IM Tri Tracker

[App page](https://appshunter.io/ios/app/im-tri-tracker/id6803727074)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Race Book | $9.99 | one-time |


## Frequently asked questions

### Is PAIRFS ZoneX free?

PAIRFS ZoneX is free to download, with no in-app purchases.

### Is IM Tri Tracker free?

IM Tri Tracker is free to download, with in-app purchases available.

### Do PAIRFS ZoneX or IM Tri Tracker have ads?

Neither PAIRFS ZoneX nor IM Tri Tracker shows ads.

### Which is updated more often, PAIRFS ZoneX or IM Tri Tracker?

PAIRFS ZoneX ships an update every 3 weeks, and IM Tri Tracker every 11 days. Most recently, PAIRFS ZoneX was updated on October 13, 2026 and IM Tri Tracker on October 2, 2026.

---

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