# Chicago CTA Metro Map vs Compass Triangulation

The clearest difference is ads: Compass Triangulation at none against Chicago CTA Metro Map's shown. Compass Triangulation also leads on update cadence (every 3 days vs every 5 months). Chicago CTA Metro Map's advantage is iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Chicago CTA Metro Map sells 8 in-app purchases, starting at $1.99 per month and Compass Triangulation sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Chicago CTA Metro Map ships an update every 5 months, Compass Triangulation every 3 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Chicago CTA Metro Map | Compass Triangulation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (155 ratings)](https://appshunter.io/ios/app/chicago-cta-metro-map/id635826132/reviews)** | — |
| Number of ratings | **155** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 162 MB | 6 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Mapway Inc.](https://appshunter.io/developer/1864704781) | [Videre Research, LLC](https://appshunter.io/developer/6815477681) |

## What reviewers say

### Chicago CTA Metro Map

[App page](https://appshunter.io/ios/app/chicago-cta-metro-map/id635826132)

Navigate Chicago's CTA transit system with ease. This app offers interactive maps, real-time train departures, and offline journey planning to help you get around the city efficiently. Save your favorite routes and enjoy a step-by-step guide for stress-free travel.

**Highlights:** Interactive L train maps, Offline journey planner, Real-time departure boards, Step-by-step navigation, Save favorite routes, Ad-free VIP option

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $1.99 | per month |
| VIP Monthly | $2.49 | per month |
| Unlimited Access | $7.99 | per 7 days |
| Unlimited Access | $9.99 | per year |
| Unlimited Access | $19.99 | per year |
| Unlimited Access | $29.99 | per year |
| Unlimited Access | $39.99 | per year |
| Unlimited Access | $49.99 | per year |


### Compass Triangulation

[App page](https://appshunter.io/ios/app/compass-triangulation/id6815477679)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $2.99 | one-time |


## Frequently asked questions

### Is Chicago CTA Metro Map free?

Chicago CTA Metro Map is free to download, with in-app purchases available.

### Is Compass Triangulation free?

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

### Do Chicago CTA Metro Map or Compass Triangulation have ads?

Chicago CTA Metro Map shows ads; Compass Triangulation does not.

### Which is updated more often, Chicago CTA Metro Map or Compass Triangulation?

Chicago CTA Metro Map ships an update every 5 months, and Compass Triangulation every 3 days. Most recently, Chicago CTA Metro Map was updated on November 1, 2026 and Compass Triangulation on November 6, 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.*