# Caltrain+ vs Fog & Fern

The clearest difference is in-app purchases: Caltrain+ at none against Fog & Fern's 3. Caltrain+ also leads on ratings volume (2.4K vs 1) and iOS requirement (16.0 vs 18.0). Fog & Fern's advantage is review sentiment (100% vs 86%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Fog & Fern sells 3 one-off in-app purchases. Caltrain+ asks for nothing beyond the download.

Fog & Fern holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Caltrain+ has 2.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 86% of Caltrain+'s written reviews are positive against 100% of Fog & Fern's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Caltrain+ | Fog & Fern |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.4K ratings)](https://appshunter.io/ios/app/caltrain-plus/id1570049004/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fog-and-fern/id6747925086/reviews)** |
| Number of ratings | **2.4K** | 1 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 16 MB | 5 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Sahoo](https://appshunter.io/developer/970144714) | [Kyle Olivo](https://appshunter.io/developer/1821787827) |

## What reviewers say

### Caltrain+

[App page](https://appshunter.io/ios/app/caltrain-plus/id1570049004)

Plan your Caltrain trips with ease. Get real-time schedules, find the fastest routes, and view service alerts. Perfect for commuters and occasional riders needing to navigate the Caltrain system efficiently.

**Highlights:** Trip planning by departure and arrival station, View full timetables, Access service alerts, System map integration, Filter by 'arrive by' time, View scheduled stops for each train

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easily accessible
- 👍 User friendly
- 👍 Great UI
- 👍 Helpful
- 👍 Useful

**What reviewers complain about**

- 🐛 Inaccurate train times
- 🐛 Inconvenient, unable to process payments

**Reported bugs**

- App doesn't open
- Unable to process payments

**Requested features**

- Expand service to Gilroy
- Post more info on the app like ticketing and upcoming changes
- Add dark mode


### Fog & Fern

[App page](https://appshunter.io/ios/app/fog-and-fern/id6747925086)

Discover San Francisco's hidden green spaces with this app. It helps you find, visit, and track all the city's parks, from major landmarks to secret gardens. Get directions and inspiration to explore new places.

**Highlights:** Browse all San Francisco parks on a map, Track visited parks and progress, Get directions to parks, Discover random unvisited parks, Sync progress with iCloud

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Caltrain+ free?

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

### Is Fog & Fern free?

Fog & Fern is free to download, with in-app purchases available.

### Which has better reviews, Caltrain+ or Fog & Fern?

Fog & Fern is rated higher. Caltrain+ averages 4.8 out of 5 from 2.4K ratings, while Fog & Fern averages 5.0 from 1 ratings.

### Do Caltrain+ or Fog & Fern have ads?

Neither Caltrain+ nor Fog & Fern shows ads.

### Which is updated more often, Caltrain+ or Fog & Fern?

Caltrain+ ships an update every 3 weeks, and Fog & Fern every 3 weeks. Most recently, Caltrain+ was updated on November 7, 2026 and Fog & Fern on October 30, 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.*