Voly Crew vs Sea
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Voly Crew
Streamline crew management at sea with tools for logging rest hours, submitting leave requests, and tracking compliance. Collaborate in real-time with vessel managers and fellow crew members, whether online or offline.
- Log hours of rest
- Create work profiles
- Submit shore leave requests
- Set In | Out status
- Monitor rest hour compliance
- Offline functionality
- Real-time collaboration
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Simplify your life at sea with the next generation of crew management tools. Thousands of crew on vessels worldwide use Voly Crew to win back time from tedious admin tasks to get back to what they do best. The Voly Crew app syncs seamlessly with Crew's Vessel Dashboard to give captains, crew and vessel managers the ability to collaborate in real-time and benefit from more productive teamwork. Win back time for more important things: * Log hours of rest for multiple days at a time, on or offline. * Create work profiles to log regular hours in a fraction of the time * Submit a shore leave request directly through the app * Set your In | Out status with one click Stay on top of the important stuff: * Monitor your hours of rest compliance (MLC) * Set reminders to log your hours * Get notified of shore leave approvals * Review your upcoming shore leave dates * View the live status of your fellow crew Don’t let anything hold you back: * Works on and offline * Keep your personal Voly Crew profile when you move vessels Ready to get started? Download the Voly Crew app. Select sign up and create your account in seconds. Then invite other crew to join directly through the app.
Sea
This app helps maritime organizations manage their crews, ensuring personnel are qualified, current, and rested. It provides real-time operational readiness, certification tracking, and duty management for both individual crew members and unit administrators.
- Real-time operational readiness tracking
- Certification and qualification management
- Live duty calendar with event management
- Push notifications for callouts and requests
- Crew slot claiming and confirmation
- Safety briefing publication and acknowledgement tracking
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Sea:Roster is the crew companion for safety-critical maritime teams - maritime operators, coastguard and rescue units, harbour operations, and any organisation where being ready isn't optional. The roster knows who's qualified, current, and rested - not just who's free, manages timesheets and dynamic crewing environments. Sea:Roster builds compliant crews, enforces certification currency, and shows live operational readiness. This app puts all of it in your crew's pockets. ON WATCH, FROM YOUR PHONE • Today at a glance - your next duty, unit readiness, certification status, and the latest safety briefing • A live calendar (agenda, grid, and month views) with vessel and event-type colours and crew-fill at a glance • Claim open slots, confirm or withdraw, and cover part of a duty with partial-attendance segments • Push notifications for callouts, confirmations, and crew requests - respond in a tap • Your profile: personal details, certifications with expiry warnings, and your time records FOR UNIT ADMINS • Run the calendar from anywhere - create and edit events, approve and decline requests, allocate crew • Manage crews and people: members, masters, qualifications, certifications, and vessel currency • Publish safety briefings and track acknowledgements • Live readiness numbers: active personnel and certification currency across the unit BUILT FOR THE FLOOR Sea:Roster is designed for the people on watch - fast, legible in sunlight and at night, and honest about what is confirmed, pending, or open. YOUR ORGANISATION'S ACCOUNT Sea:Roster is for crews of organisations using the Sea:Roster platform. Sign in with the account your organisation invited you with - there is no self-service sign-up in the app. To bring Sea:Roster to your operation, request a trial at www.searoster.com. Built for safety-critical teams.
Screenshots
Verdict
The clearest difference is rating: Sea at 5.0 against Voly Crew's 3.5. Sea also leads on update cadence (every 5 days vs every 3 weeks) and monetization model (free vs ad-supported). Voly Crew's advantage is ratings volume (4 vs 1). 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.
Sea holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
Voly Crew ships an update every 3 weeks, Sea every 5 days. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.
| Parameter | Voly Crew | Sea |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 65 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Voly Group | Storm Technology Ltd |
Customer experience
Voly Crew
Sea
In-app purchases
Voly Crew
No in-app purchases
Sea
No in-app purchases









