FLEXHOTEL vs Rail Ninja
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FLEXHOTEL
Unlock your hotel room door directly from your smartphone. This free app transforms your mobile device into a secure digital room key, simplifying check-in and access.
- Smartphone as digital room key
- Easy room access
- Free to use
- Secure mobile entry
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Access your hotel room using your smartphone. Your smartphone is your digital mobile room key. Using FLEXHOTEL is easy and free! 1. Download FLEXHOTEL 2. Enter Code and access your room
Rail Ninja
Book train tickets globally with ease. Search over 25,000 destinations in 50+ countries, compare seat options with videos, and store tickets offline. Get instant support via in-app chat for seamless travel planning.
- Book train tickets worldwide
- Search 50+ countries
- View seat layouts with videos
- Offline ticket storage
- In-app chat support
- Multi-language support
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Rail.Ninja app – the most convenient way to book train tickets worldwide Rail Ninja makes booking train tickets easy. Search for tickets in 50+ countries and book up to a year in advance in just a few clicks. Watch helpful videos to explore train options and seat layouts before booking. Once issued, your tickets are securely stored in the app and available offline. Need assistance? Get help directly via in-app chat for any changes or travel adjustments. INTUITIVE INTERFACE Quickly find the best train options by entering your route and date. See live schedules, classes, and prices at a glance. EASY CLASS SELECTION Compare seat options with photos and videos to choose the best experience for your trip. FAST & SECURE BOOKING Pay effortlessly with Apple Pay, Visa, or Mastercard and receive official tickets instantly. TICKETS ALWAYS AT HAND Access your tickets anytime, even offline, without worrying about paper copies. TRUSTED BY MILLIONS Join 2.5M+ travelers who rely on Rail Ninja for smooth and hassle-free train bookings. WHAT’S INSIDE THE APP? Search tickets for 25,000+ destinations Buy tickets instantly from your phone Receive trip notifications View search history for quick rebooking Get support via in-app chat whenever you need help Use the app in English, French, and Spanish, with more languages coming soon Download Rail Ninja and make train travel easier than ever!
Screenshots
Verdict
The clearest difference is review sentiment: FLEXHOTEL at 100% against Rail Ninja's 32%. FLEXHOTEL also leads on monetization model (free vs free with in-app purchases) and iOS requirement (12.0 vs 15.5). Rail Ninja's advantage is rating (4.8 vs 4.3) and ratings volume (6.2K vs 3). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Rail Ninja holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Rail Ninja has 6.2K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of FLEXHOTEL's written reviews are positive against 32% of Rail Ninja's, so the app with the better star average is not the one people write more warmly about.
FLEXHOTEL ships an update every 3 months, Rail Ninja every 3 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | FLEXHOTEL | Rail Ninja |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) | 4.8 (6.2K ratings) — better |
| Positive reviews | 100.0% of reviews — better | 31.6% of reviews |
| Number of ratings | 3 | 6.2K — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 17 MB | 60 MB |
| Age rating | 12+ | 4+ |
| Developer | FLEXIPASS Keyless Mobile Access SRL Semplice | Firebird GT Limited |
Customer experience
FLEXHOTEL
Rail Ninja
Bugs and requests
FLEXHOTEL
Not enough reviews yet to summarise bugs or requests.
Rail Ninja
Reported bugs
3 issues- Tickets not received despite payment
- Incorrect ticket information displayed
- App crashes during booking process
Requested features
3 requests- Improve refund and cancellation policies
- Provide better customer support channels
- Offer more transparent pricing information
In-app purchases
FLEXHOTEL
No in-app purchases
Rail Ninja
No in-app purchases
