# TreKing (CTA vs Rapid Transit

The clearest difference is in-app purchases: Rapid Transit at none against TreKing (CTA's 1. Rapid Transit also leads on ads (none vs shown) and iOS requirement (9.0 vs 14.0). TreKing (CTA's advantage is update cadence (every 3 months vs every 11 months). On price and device support there is nothing between them.

Both are free to download. TreKing (CTA sells 1 in-app purchase, starting at $1.00 per month. Rapid Transit asks for nothing beyond the download.

TreKing (CTA ships an update every 3 months, Rapid Transit every 11 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | TreKing (CTA | Rapid Transit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/treking-cta-metra-pace/id897763778/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | Free with in-app purchases | — |
| Size | 70 MB | 30 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dominicoder LLC](https://appshunter.io/developer/882117171) | [Syncromatics](https://appshunter.io/developer/1018907481) |

## What reviewers say

### TreKing (CTA

[App page](https://appshunter.io/ios/app/treking-cta-metra-pace/id897763778)

Get real-time and scheduled arrival information for Chicago public transit. Save favorite stops, view nearby options, and plan trips with step-by-step directions. An optional subscription unlocks advanced features and removes ads.

**Highlights:** Real-time CTA bus and train tracking, Real-time Metra and Pace bus tracking, Scheduled South Shore Line tracking, Service alerts for disruptions, Save favorite stops and trip searches, Nearby stop and route finder, Step-by-step transit directions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TreKing Gold | $1.00 | per month |


### Rapid Transit

[App page](https://appshunter.io/ios/app/rapid-transit/id1436652089)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TreKing (CTA free?

TreKing (CTA is free to download, with in-app purchases available.

### Is Rapid Transit free?

Rapid Transit is free to download, with no in-app purchases.

### Do TreKing (CTA or Rapid Transit have ads?

TreKing (CTA shows ads; Rapid Transit does not.

### Which is updated more often, TreKing (CTA or Rapid Transit?

TreKing (CTA ships an update every 3 months, and Rapid Transit every 11 months. Most recently, TreKing (CTA was updated on November 1, 2026 and Rapid Transit on October 26, 2026.

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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.*