Keelin vs Trip Reader (NFC)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keelin
Monitor your car's location and operational status in real-time from your phone. Remotely control vehicle systems, view historical data, and receive fault diagnosis information and alarms. Includes a car locking feature for security.
- Real-time vehicle location tracking
- Remote vehicle system control
- Historical location data and playback
- OBD fault diagnosis information
- Alarm notifications for emergencies
- Mobile car locking function
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Keelin management system of Apple client, can help you observe your car position in the mobile phone, real-time access to vehicle interior operation state, and through the mobile phone remote control vehicle engine system.Also can provide the vehicle or positioning equipment history information, location track.The OBD function with the vehicle, can view the fault diagnosis information, receiving alarm.If the vehicle is missing, you can protect your car through the mobile phone lock function. This application is used with our hardware equipment, for the use of user equipment easily see and manage related equipment. 1. In the main interface shown on the map the user's vehicle location, information, and status. 2. Can query the user vehicles last month historical information query (when times up to 5 days), and play mobile track on the map. 3. can view real-time vehicle GPS, and OBD information. 4. When the vehicle emergency occurs, will push the alarm message is received. 5. Remote sending instructions, control the vehicle on the relevant system. This app may use your location even when it isn’t open, which can decrease device battery life.
Trip Reader (NFC)
Access your Chinese public transit card's balance and transaction history using your iPhone's NFC reader. View station names, monthly discounts, and bus routes without needing internet or Bluetooth. Save your travel history and sync it across devices.
- Read balance and history
- Show station names
- Track monthly discounts
- Display bus route numbers
- Save travel history
- Sync to iCloud
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Trip Reader uses iPhone's internal NFC reader to get balance and history from public transit cards issued across China. No Internet or Bluetooth is needed. Main features: • Balance and history • Show station names • Monthly discount policy and progress • Bus route number • Save history and comments • Sync to iCloud ************************************** Beijing Yikatong is not supported due to technical reason. ************************************** Cards supported: • Beijing Hutong Card (京津冀互联互通卡, with T-Union mark) • Tianjin City Card (with T-Union mark) • Nanjing City Card (with T-Union mark) • Suzhou Citizen Card • Shanghai Public Transportation Card (Purple card and T-Union card) • Kunshan Citizen Card • Guangzhou Yang Cheng Tong (CPU card only) • Lingnan Pass • Shenzhen Tong (FeliCa type not supported) • Chengdu Tianfu Tong (CPU card only) • Other T-Union or City Union cards issued across China (some dual-module cards may show T-Union history only) Note: Student cards, senior cards etc. are not supported. This app does not have access to official database. Please use with caution and do not rely on the result.
Screenshots
Verdict
The clearest difference is review sentiment: Trip Reader (NFC) at 93% against Keelin's 17%. Keelin's advantage is monetization model (free vs paid) and update cadence (every 3 weeks vs every 2 months). 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.
Keelin ships an update every 3 weeks, Trip Reader (NFC) every 2 months. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.
| Parameter | Keelin | Trip Reader (NFC) |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (483 ratings) — better |
| Positive reviews | 16.7% of reviews | 92.9% of reviews — better |
| Number of ratings | — | 483 — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 108 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | 佳喜 肖 | Domosekai Limited |
Customer experience
Keelin
Trip Reader (NFC)
In-app purchases
Keelin
No in-app purchases
Trip Reader (NFC)
No in-app purchases









