Comparison

ISF Watchkeeper 4 vs Floor Plan Studio

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

ISF Watchkeeper 4

This app helps seafarers track and manage their work and rest hours, ensuring compliance with international maritime regulations. It automatically tests timesheets against STCW and MLC 2006, providing real-time alerts for non-conformities and offering a cloud-based solution for easy access and team collaboration.

Highlights
  • Automatic compliance testing
  • Predictive calculation engine
  • Real-time alerts and notifications
  • Live compliance status monitoring
  • Electronic timesheet signing
  • Cloud-based collaboration
  • Offline functionality
Features
Read full description

ISF Watchkeeper 4 mobile app enables seafarers to record their work and rest hours on smartphone and tablet. Timesheets are automatically tested against STCW, MLC 2006 and other international and local regulations for compliance purposes. The predictive calculation engine helps manage work and rest hours compliance for you, keeping you notified of up coming non-conformities and helping you remain compliant. Cloud-based and totally cross platform, ISF Watchkeeper 4 provides seafarers with an efficient yet simple mobile solution that is full of great innovations, showing live compliance status, allowing real time tracking and testing, whilst making it easy to log hours of work and rest, and plan-ahead to avoid regulatory breaches. - Works on or offline - Syncs to ISF Watchkeeper 4 Web App for real-time collaboration across teams - Realtime alerts and notifications of upcoming non-conformance - Monitor your live Compliance Status - Electronic timesheet signing and verification - Manage your work schedules - Automatically log hours by your work schedule - Manage vessel joining and leaving - Copy logged hours across multiple days - Reporting Dashboard - Cloud based, no vessel installation required - Simple, intuitive User Interfaces A truly global brand, accepted by Port State Control and recognised as the gold standard work and rest hour solution, ISF Watchkeeper is developed in partnership with the International Chamber of Shipping (ICS), whose members include over 80 percent of the global merchant fleet and who have represented the industry at the International Maritime Organization (IMO) and International Labour Organization (ILO) for more than 50 years. No more printing: you can electronically sign and lock timesheets and have them available on your mobile or online for inspection as per IMO guidelines for the signing, tracking and verification of electronic certificates. Your data is synced to the cloud and accessible via the ISF Watchkeeper 4 web app, offering seamless team collaboration and powerful management and reporting functionality from the shore. Furthermore, our dedicated support team are on hand to assist at every turn, getting you up and running and ensure your software operation runs smoothly. The app is packed full of innovative features, benefitting from constant development and evolution by working alongside professionals in the industry and harnessing the decades of experience working extensively in the shipping industry. ISF Watchkeeper 4 is the smart way to help operators comply with the requirements of the ILO (MLC, 2006) and IMO International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW).

About

Floor Plan Studio

Features
Read full description

Turn a room scan into a clear 2D floor plan, an inspectable CAD 3D model, and an optional detailed Real 3D captureβ€”privately on your iPhone. Floor Plan Studio is built for surveyors, architects, designers, renovation teams, and anyone who needs a practical spatial record without uploading camera or LiDAR data to a service. CAPTURE THE SPACE β€’ Scan one room or coordinate a multi-room layout with Apple RoomPlan. β€’ Choose Room Scan for a measured 2D plan and clean CAD 3D. β€’ Choose Real 3D for detailed LiDAR surfaces with an optional captured-color result. β€’ Create a Photo Tour from separate directional photographs and linked viewpoints. INSPECT AND REFINE β€’ Review dimensions in a navigable 2D plan. β€’ Select walls and furniture in CAD 3D. β€’ Verify or correct furniture measurements, move and rotate objects, add spacing dimensions, and undo the last edit. β€’ Reopen saved scans, add rooms, and keep project notes and an optional map position. EXPORT FOR YOUR WORKFLOW β€’ Create PDF technical drawings and PNG plan images. β€’ Export metric DXF, IFC 4, normalized JSON, and USDZ. β€’ Import compatible DXF and Floor Plan Studio IFC files. β€’ Share or restore complete .floorplanstudio project packages. β€’ Open USDZ in AR Quick Look and compatible Apple spatial workflows. PRIVATE BY DESIGN Room, camera, LiDAR, photo, note, and optional location data stay on your device unless you explicitly export or share a file. Floor Plan Studio does not require an account or cloud upload. DEVICE SUPPORT Room Scan and neutral Real 3D require a LiDAR-equipped iPhone Pro. Detailed color Real 3D requires iPhone 15 Pro or a newer Pro model. Photo Tour, the Library, imports, exports, and saved-project viewing remain available on supported non-LiDAR iPhones. IMPORTANT LiDAR and RoomPlan measurements are estimates. Always verify dimensions before construction, legal, safety-critical, or purchasing decisions. Floor Plan Studio is not a substitute for a certified survey or professional judgment.

Screenshots

ISF Watchkeeper 44 screens
Floor Plan Studio4 screens

Verdict

The call

The clearest difference is update cadence: ISF Watchkeeper 4 at every 10 days against Floor Plan Studio's every 4 weeks. ISF Watchkeeper 4 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ISF Watchkeeper 4 ships an update every 10 days, Floor Plan Studio every 4 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard3 real differences Β· 5 level
ISF Watchkeeper 4 versus Floor Plan Studio: the parameters behind the verdict, then further details
ParameterISF Watchkeeper 4Floor Plan Studio
PriceFreeFree
Positive reviews50.0% of reviewsβ€”
Update frequencyEvery 10 days β€” betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.0 β€” better26.0
Further details β€” not scored
Size39 MB46 MB
Age rating4+4+
DeveloperIT EnergyDenis Berton

In-app purchases

None

ISF Watchkeeper 4

No in-app purchases

None

Floor Plan Studio

No in-app purchases

Questions

Is ISF Watchkeeper 4 free?
ISF Watchkeeper 4 is free to download, with no in-app purchases.
Is Floor Plan Studio free?
Floor Plan Studio is free to download, with no in-app purchases.
Do ISF Watchkeeper 4 or Floor Plan Studio have ads?
Neither ISF Watchkeeper 4 nor Floor Plan Studio shows ads.
Which is updated more often, ISF Watchkeeper 4 or Floor Plan Studio?
ISF Watchkeeper 4 ships an update every 10 days, and Floor Plan Studio every 4 weeks. Most recently, ISF Watchkeeper 4 was updated on October 24, 2026 and Floor Plan Studio on October 29, 2026.

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