Rail Infrastructure Manager vs QIDI JOY
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rail Infrastructure Manager
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Intended to support the railway maintenance and operation function by reducing the mean time to repair, Rail Infrastructure Manager provides anytime anywhere access to the current state of railway signalling assets, allowing the maintainer to see what the fault is, where the fault is and how to get there. The app includes an expert system to guide the maintainer in resolving the issue and provides access to relevant manual and instruction videos. Integrated with the mobile phones notification features the Maintainer will be notified of new faults even if the allocation id closed. Main features at a glance: • Shows an overview of monitored system status for alarms and equipment • Notifies the user of new equipment failures • Shows the geographical location of equipment, trackside infrastructure and failures on a map • Turn by turn navigation to equipment location • Trackside guide to exact locartion of signalling assett • Displayed a structured hierarchy of railway assets and their status. • Alarm information is enhanced by a knowledge base of corrective actions. • Online access to equipment specific documentation and instructional video’s • Displays a list of current and historic alarms. • Displays contact information for Siemens customer support team • Integrated bug reporting and improvement suggestion collection. • Content and interfaces available in multiple languages. • Display Points analisys Data and KPI's . • Prediction of point failure • Integration with CMMI ( currently Siemens Coremap and IFS ) Only for registered users and requires an additional contract.
QIDI JOY
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Discover 3D printing with QIDI JOY! Featuring engaging, in-house developed, and regularly updated tutorials, QIDI JOY helps kids boost their hands-on skills and critical thinking. Follow QIDI JOY step-by-step to become a mini 3D printing engineer. Rich Content Ecosystem: 5-Minute Video Lessons: Learn through play—courses designed to keep kids truly engaged. Fun & Interactive Models: Spark self-directed learning for stress-free parenting. Model Parts Kits: Accurately replicate real-world structures to unlock endless imagination. Remote Print Management: One-Click Printing: Smart, effortless print job execution. Real-Time Status: Track progress and get instant feedback. HD Live Monitoring: Monitor your printer anytime, anywhere with total control.
Screenshots
Verdict
The clearest difference is update cadence: QIDI JOY at every 4 days against Rail Infrastructure Manager's every 2 months. Rail Infrastructure Manager's advantage is iOS requirement (13.0 vs 15.5). 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 Infrastructure Manager ships an update every 2 months, QIDI JOY every 4 days. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.
| Parameter | Rail Infrastructure Manager | QIDI JOY |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 210 MB | 149 MB |
| Age rating | 4+ | 9+ |
| Developer | Siemens AG | Zhejiang Qidi Technology Co., Ltd. |
In-app purchases
Rail Infrastructure Manager
No in-app purchases
QIDI JOY
No in-app purchases





