# Spark vs TrainTracker App

The clearest difference is ads: Spark at none against TrainTracker App's shown. Spark also leads on rating (5.0 vs 4.8) and iOS requirement (15.1 vs 17.6). TrainTracker App's advantage is update cadence (every 3 days vs every 4 months) and monetization model (free vs free with in-app purchases). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Spark holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 7 and 15 respectively.

Spark ships an update every 4 months, TrainTracker App every 3 days. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Spark | TrainTracker App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/spark-light-the-room/id6760679174/reviews)** | [4.8 (15 ratings)](https://appshunter.io/ios/app/traintracker-app/id6766416455/reviews) |
| Number of ratings | 7 | **15** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 186 MB | 39 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chad Balthrop](https://appshunter.io/developer/1885683983) | [SAMUEL NICHOLAS HAJEK](https://appshunter.io/developer/1859813802) |

## What reviewers say

### Spark

[App page](https://appshunter.io/ios/app/spark-light-the-room/id6760679174)

Connect with fellow Christians in your school or class to share faith and encourage prayer. This app helps you discover like-minded individuals, track prayer requests, and access resources to deepen your understanding and sharing of the gospel.

**Highlights:** Connect with Christians in your school/class, Share gospel sparks, Track prayer requests, Read the Bible, Faith-sharing tools

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

**In-app purchases:** none


### TrainTracker App

[App page](https://appshunter.io/ios/app/traintracker-app/id6766416455)

Log and explore real-time train sightings across North America. Share your discoveries, view what others have spotted, and track your sighting history with badges. Features an interactive map and community feed for railfans.

**Highlights:** Log train sightings with photos and GPS, Interactive map with railroad-colored pins, Community sighting feed, User profiles with badges, Searchable railroad picker, Dark mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is Spark free?

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

### Is TrainTracker App free?

TrainTracker App is free to download, with no in-app purchases.

### Which has better reviews, Spark or TrainTracker App?

Spark is rated higher. Spark averages 5.0 out of 5 from 7 ratings, while TrainTracker App averages 4.8 from 15 ratings.

### Do Spark or TrainTracker App have ads?

TrainTracker App shows ads; Spark does not.

### Which is updated more often, Spark or TrainTracker App?

Spark ships an update every 4 months, and TrainTracker App every 3 days. Most recently, Spark was updated on October 5, 2026 and TrainTracker App on October 8, 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.*