SRT D vs NAPA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SRT D
This official application allows users to book train tickets for the State Railway of Thailand. It serves as a convenient platform for managing your railway travel.
- Official train ticket booking
- State Railway of Thailand
- Manage railway travel
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SRT D-Ticket เป็น Official App. สำหรับ จองตั๋วรถไฟ (SRT D-Ticket) โดย การรถไฟ แห่งประเทศไทย (State Railway of Thailand)
NAPA
Explore the night sky with this astronomy and planetarium app. Identify stars, constellations, and planets by pointing your device at the sky. Plan future observations by adjusting the time and date.
- Point and observe celestial objects
- Star map functionality
- Time adjustment for observation planning
- Simulate planet positions
- Locate specific celestial objects
- Real images of deep sky objects
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NAPA - Star Map NARIT Astronomy & Planetarium Application, or “NAPA” is an astronomy and planetarium app that will help guide you to the night sky. Identify those dots in the sky. Learn about stars, constellations, planets, and other deep sky objects by simply pointing your phone at the sky. Adjust the time and NAPA can be used as a star map to help plan your future observation. Familiarize yourself and learn more about the patterns that make up the night sky. Select and use NAPA to locate deep sky objects that you can locate with a binocular or small telescope. NAPA is made by professional and amateur astronomers, along with public outreach professionals with the aim to help bridge the gap, making astronomy accessible to everyone. This app is made free to use with the aim to assist schoolteachers and public outreach personnels with their engagement with the public. Unlock the pro version (coming soon) to access the full potential of this app. Turn your phone into powerful tools that can help you with your observation and stargazing events with features that will assist in your astronomical needs. NAPA features: • Point and observe: Display the celestial objects in the position of the sky that your smart device is pointing at. • Point and drag the screen to turn this app into a star map. • Adjust the time to plan your observations at any given date and time. • Simulate the positions of planets that you can see at any time. • Select constellations, planets, or deep sky objects of interest and locate its position in the sky. • Real images of deep sky objects
Screenshots
Verdict
The clearest difference is review sentiment: NAPA at 75% against SRT D's 10%. NAPA also leads on rating (4.5 vs 1.4). SRT D's advantage is ratings volume (17 vs 4). On price, update cadence, ads and in-app purchases 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.
NAPA holds the better App Store score, 4.5 against 1.4. Both are backed by a comparable volume of ratings — 17 and 4 respectively. Written reviews point the same way: 10% of SRT D's written reviews are positive against 75% of NAPA's.
SRT D ships an update every 5 weeks, NAPA every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | SRT D | NAPA |
|---|---|---|
| Price | Free | Free |
| Rating | 1.4 (17 ratings) | 4.5 (4 ratings) — better |
| Positive reviews | 10.3% of reviews | 75.0% of reviews — better |
| Number of ratings | 17 — better | 4 |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 287 MB |
| Age rating | 4+ | 4+ |
| Developer | State Railway of Thailand | National Astronomical Research Institute of Thailand (Public Organization) |
Customer experience
SRT D
NAPA
Bugs and requests
SRT D
Reported bugs
15 issues- Login credentials rejected despite correct entry
- Email verification link not functional
- Password reset emails not delivered
- App crashes when entering passport information
- Seats marked as occupied after failed booking attempts
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- Seat assignments not matching actual train layout
- Search returning no results for valid routes
- Payment processing failures
- App freezing during passenger selection
- Booking confirmation not reflecting in app
- Unable to register new accounts
- Duplicate account detection preventing re-registration
- Keyboard not hiding on iOS during signup
- Data synchronization issues between platforms
- Unreliable app stability and frequent crashes
Requested features
14 requests- Swap origin/destination button for easy comparison
- Remember recent travel searches
- Direct email integration for account recovery
- Gender option for monks/religious persons
- Sync bookings between app and website
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- Real-time train delay notifications
- PIN-based login instead of full credentials
- Select seats before entering passenger details
- Allow passenger name changes
- Multiple payment methods beyond credit/debit cards
- Longer ticket history retention
- Search by province name instead of exact station
- Improved keyboard handling on iOS
- Better handling of group bookings
NAPA
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SRT D
No in-app purchases
NAPA
No in-app purchases
