# TreKing (CTA vs Transit Chi

The clearest difference is rating: Transit Chi at 5.0 against TreKing (CTA's 3.3. Transit Chi also leads on in-app purchases (none vs 1) and ads (none vs shown). TreKing (CTA's advantage is update cadence (every 3 months vs every 10 months). On price, ratings volume, device support and iOS requirement there is nothing between them.

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

Transit Chi holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

TreKing (CTA ships an update every 3 months, Transit Chi every 10 months. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | TreKing (CTA | Transit Chi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/treking-cta-metra-pace/id897763778/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/transit-chi/id6748567383/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 70 MB | 82 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dominicoder LLC](https://appshunter.io/developer/882117171) | [Christopher Mojekwu](https://appshunter.io/developer/1826314915) |

## 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 |


### Transit Chi

[App page](https://appshunter.io/ios/app/transit-chi/id6748567383)

This app automatically tracks your public transit rides in Chicago. View nearby vehicles, monitor your journeys in real-time, and access a history of your past trips.

**Highlights:** Automated CTA tracking, Real-time vehicle location, Trip monitoring, Save trip data, Review past trips

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

**In-app purchases:** none


## Frequently asked questions

### Is TreKing (CTA free?

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

### Is Transit Chi free?

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

### Which has better reviews, TreKing (CTA or Transit Chi?

Transit Chi is rated higher. TreKing (CTA averages 3.3 out of 5 from 3 ratings, while Transit Chi averages 5.0 from 2 ratings.

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

TreKing (CTA shows ads; Transit Chi does not.

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

TreKing (CTA ships an update every 3 months, and Transit Chi every 10 months. Most recently, TreKing (CTA was updated on November 6, 2026 and Transit Chi on November 5, 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.*