# RegioJet vs IDS JMK Poseidon

The clearest difference is rating: RegioJet at 4.7 against IDS JMK Poseidon's 3.0. RegioJet also leads on update cadence (every 3 weeks vs every 7 months) and review sentiment (28% vs 0%). IDS JMK Poseidon's advantage is monetization model (free vs free with in-app purchases). On price, ads, 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.

RegioJet holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: RegioJet has 753 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 28% of RegioJet's written reviews are positive against 0% of IDS JMK Poseidon's.

RegioJet ships an update every 3 weeks, IDS JMK Poseidon every 7 months. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | RegioJet | IDS JMK Poseidon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (753 ratings)](https://appshunter.io/ios/app/regiojet/id706033015/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/ids-jmk-poseidon/id871192147/reviews) |
| Number of ratings | **753** | 2 |
| Positive reviews | **28.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 43 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Student Agency, k. s.](https://appshunter.io/developer/706033018) | [KORDIS JMK, a.s.](https://appshunter.io/developer/1496810200) |

## What reviewers say

### RegioJet

[App page](https://appshunter.io/ios/app/regiojet/id706033015)

Book train and bus tickets to over 90 European cities. Enjoy easy searching, fast booking with seat reservations, and free cancellation up to 15 minutes before departure. Save time and money with affordable prices and exclusive deals.

**Highlights:** Book train and bus tickets, Tickets to over 90 European cities, Free cancellation up to 15 mins before departure, Seat reservation, Affordable prices and exclusive deals, Booking history and timetables

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to buy tickets
- 👍 Good value sleeping compartments
- 👍 Works for bus tickets
- 👍 Works perfectly
- 👍 Easy to use

**What reviewers complain about**

- 🐛 App doesn't fit screen
- 🐛 Can't add tickets
- 🐛 Paid twice for same seat
- 🐛 Seat still available
- 🐛 Can't change origin/destination

**Reported bugs**

- Display doesn't fit on screen
- Cannot add ticket
- Paid for the same seat twice
- Seat still available for sale
- Cannot change origin or destination

**Requested features**

- Add dark mode icon
- Add support for passbook
- Add advance search for indirect connections
- Fix Chinese characters display


### IDS JMK Poseidon

[App page](https://appshunter.io/ios/app/ids-jmk-poseidon/id871192147)

This app allows you to purchase single-use tickets for public transport in Brno and the South Moravian Region. It offers discounted fares with loaded credit and includes a journey planner with real-time departure data. Tickets are stored as QR codes on your phone for easy validation.

**Highlights:** Purchase single-use tickets, Discounted fares with credit, Journey planner with real-time data, QR code ticket storage, Save favorite routes and stops, Supports group and special tickets

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RegioJet free?

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

### Is IDS JMK Poseidon free?

IDS JMK Poseidon is free to download, with no in-app purchases.

### Which has better reviews, RegioJet or IDS JMK Poseidon?

RegioJet is rated higher. RegioJet averages 4.7 out of 5 from 753 ratings, while IDS JMK Poseidon averages 3.0 from 2 ratings.

### Do RegioJet or IDS JMK Poseidon have ads?

Neither RegioJet nor IDS JMK Poseidon shows ads.

### Which is updated more often, RegioJet or IDS JMK Poseidon?

RegioJet ships an update every 3 weeks, and IDS JMK Poseidon every 7 months. Most recently, RegioJet was updated on October 14, 2026 and IDS JMK Poseidon on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*