# Heritage Units vs e

The clearest difference is in-app purchases: e at none against Heritage Units's 2. e also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). Heritage Units's advantage is ratings volume (253 vs 1). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Heritage Units sells 2 in-app purchases, starting at $0.99 per year. e asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.1 for Heritage Units against 4.0 for e. That said, the two scores are not equally well evidenced: Heritage Units has 253 ratings behind it against 1, so its average is the more settled of the two.

Heritage Units ships an update every 10 days, e weekly. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Heritage Units | e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (253 ratings)](https://appshunter.io/ios/app/heritage-units/id1117504088/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/e-train-controller/id1133365438/reviews) |
| Number of ratings | **253** | 1 |
| Positive reviews | 58.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 122 MB | 64 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Brian Minnich](https://appshunter.io/developer/1117504087) | [toytec](https://appshunter.io/developer/1556354133) |

## What reviewers say

### Heritage Units

[App page](https://appshunter.io/ios/app/heritage-units/id1117504088)

This app allows users to track and report special interest locomotives from major US railroads. View reported units on a map within a 200-mile radius and contribute new sightings directly from your device.

**Highlights:** Track heritage units, Report new locomotive locations, View locomotives on maps, Search within 200 miles, Support for major railroads

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Free | $0.99 | per year |
| Premium Membership | $5.99 | per year |

**What reviewers like**

- 🎯 Excellent tool for tracking heritage units and special locomotives
- 📍 Real-time location reporting from community users
- 👍 User-friendly interface and intuitive navigation
- 📸 Ability to upload photos of locomotives
- 🚀 Responsive developer support and regular updates

**What reviewers complain about**

- 🐛 Frequent app crashes and freezing
- 🔓 Persistent login/logout issues
- ⚠️ Confusing error messages without clear explanations
- 📵 Limited photo upload capacity for free users
- 🚫 Arbitrary account suspensions and bans

**Reported bugs**

- App crashes when refreshing or loading reports
- Persistent 'You've reached your limit for spots' error that lasts weeks or months
- Login credentials rejected despite correct password/username
- Automatic logout after 1-2 months of inactivity
- Premium subscription purchases not recognized by app

**Requested features**

- Dark mode and light mode toggle
- Report timestamp visibility to distinguish old vs new reports
- Edit and delete buttons for submitted reports
- Increase daily/monthly report submission limits
- Ability to favorite or star specific locomotives


### e

[App page](https://appshunter.io/ios/app/e-train-controller/id1133365438)

Control your model railroad with your smartphone or tablet. This app supports various scales and both DC and DCC cars, featuring built-in sound capabilities for a more immersive experience. Simple and intuitive operation makes managing your trains effortless.

**Highlights:** Smartphone/tablet operation, Supports Z, N, and HO scales, Operates DC and DCC cars, Built-in sound function, Simple and easy to use

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Heritage Units free?

Heritage Units is free to download, with in-app purchases available.

### Is e free?

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

### Which has better reviews, Heritage Units or e?

Heritage Units is rated higher. Heritage Units averages 4.1 out of 5 from 253 ratings, while e averages 4.0 from 1 ratings.

### Do Heritage Units or e have ads?

Heritage Units shows ads; e does not.

### Which is updated more often, Heritage Units or e?

Heritage Units ships an update every 10 days, and e weekly. Most recently, Heritage Units was updated on September 29, 2026 and e on October 2, 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.*