First Due Mobile vs Serusi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
First Due Mobile
Receive instant incident notifications and navigate emergency scenes with advanced routing. Access integrated building data, pre-plans, and real-time unit tracking for enhanced situational awareness and team communication.
- Incident tracking and notification
- Emergency response routing
- Integrated building data
- Pre-incident planning and mapping
- Team chat and communication
- Live unit tracking
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First Due Mobile is finally here! Be notified, arrive safely and understand your scene like never before. First Due Mobile includes: -Incident tracking and notification -Emergency response specific routing -Integrated Assessor, Building Department and Fire Prevention data! -Quick size-up on every building -Detailed pre-plans on every building including residential! -Pre-Incident Planning & Mapping -Chat for easy communication with your team -Incident statusing and responding functionality -Live unit and team member tracking during incident
Serusi
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**Stop Fraudsters in Their Tracks** Send emails and files with **unbreakable security** — no more Business Email Compromise (BEC) or Man-in-the-Middle (MITM) threats. Serusi secures your digital life with cutting-edge **AI-powered communications encryption**. We've refined a simple yet powerful tool to serve as your source of truth, keeping sensitive personal and business data safe from cyber threats. Whether you're a CEO, global support team, new business development director, cyber attorney, or handling client data — Serusi protects what matters most. **Key Features:** - **File Transfer Fortress** Share sensitive files without fear of interception — fully encrypted end-to-end. - **Verified Identity** Authenticate every party in the communication chain for total trust. - **Compliance Made Easy** Effortlessly meet strict standards like POPIA, GDPR, and more through secure, encrypted communication. - **Beginner-Friendly Interface** Works just like a classic email client — quick onboarding, no steep learning curve. - **Fully Customizable Branding** Add your logo and styling for instant recipient recognition and stronger trust from the first message. Serusi is designed for businesses and individuals who handle confidential information: legal firms, real estate, education, finance, and more. Protect login credentials, financial details, contracts, payment instructions, and client data like never before. **Why Choose Serusi?** - Uses the latest AI technology for next-level encryption - Stops fraudsters before they can act - Builds unmatched trust with clients and partners - Seamless, fast, and intuitive on mobile **Trusted by real users:** > "Serusi builds unmatched trust with our clients by securing their sensitive data and ensuring POPIA/GDPR compliance." > — Fatima Ajaraan, Head of Global Support - TGO > "After losing big to an MITM attack, Serusi ensures my payments and data are secure—never again." > — Gerhard Swart, CEO Bello Paints ZA > "Serusi helps us win new clients by keeping their information safe from day one—trust starts here." > — Lirian Alencar, Director of New Business Development > "As a cyber attorney, I rely on Serusi to eliminate the risks of standard email for me and my clients." > — Natasha Foster, Partner Citi Legal SA Get total security in minutes. Protect your personal and business communications today. **Download Serusi now** and communicate confidently — because your data deserves unbreakable protection.
Screenshots
Verdict
The clearest difference is update cadence: Serusi at fortnightly against First Due Mobile's every 7 months. Serusi also leads on iOS requirement (15.6 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.
First Due Mobile ships an update every 7 months, Serusi fortnightly. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.
| Parameter | First Due Mobile | Serusi |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (10 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 7 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 224 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Locality Media, Inc. | Serusi |
In-app purchases
First Due Mobile
No in-app purchases
Serusi
No in-app purchases









