Rail Rush vs ETA321
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rail Rush
This unofficial train app offers a quick way to navigate and escape from trains in various locations. An internet connection is necessary for its operation. All disclosed data is for reference purposes.
- Fast train navigation
- Escape from trains
- Multiple locations
- Internet connection required
- Data for reference
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An unoffical train apps provides the fastest way to reach and escape from Trains in different locations. Internet connection is required for this app. All data disclosed from this apps is developed by Chu Man Ki Morris. For your references only. Last update of station information: Hong Kong: 24 Dec 2016 Shenzhen: 7 May 2017 Kaohsiung: 24 August 2017 Taoyuan: 25 August 2017 Taipei: 26 August 2017 Dongguan: 24 December 2017
ETA321
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ETA321 為香港公共交通而設，將港鐵、城巴及九巴的公開 ETA 資料，轉化為更清晰、更易掌握的分秒預估倒數。見到下一班仲有 7 分鐘，先後悔行慢咗？ETA321 讓你不只看見「7 分鐘」，而是更直觀地掌握剩餘時間，幫助你判斷應否趕車、候車或準備轉乘。 功能包括： (1) 港鐵分秒 ETA 預估倒數； (2) 港鐵路線地圖及列車位置推算； (3) 城巴及九巴路線到站預估； (4) iPhone 鎖定畫面及動態島 Live Activity。 ETA321 會以公開資料更新作為參考，提供穩定易讀的倒數體驗。所有到站時間及分秒倒數均屬預估資訊，請以營辦商官方公告及現場資訊為準。
Screenshots
Verdict
The clearest difference is update cadence: ETA321 at weekly against Rail Rush's every 8 months. Rail Rush's advantage is iOS requirement (13.0 vs 17.0). 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 Rush ships an update every 8 months, ETA321 weekly. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.
| Parameter | Rail Rush | ETA321 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 8 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | MAN KI CHU | Wing Leung Wong |
In-app purchases
Rail Rush
No in-app purchases
ETA321
No in-app purchases
