Maritime · head to head
Harbour Assist vs Nautilus Labs

Harbour Assist
Maritime
Marina, harbour and boatyard management software for United Kingdom and European operators
- From
- On request
- Rated
- -
Nautilus Labs
Maritime
AI-powered vessel performance optimization
- From
- $1000/month
- Rated
- -
The short version
- Each has a real cost: Harbour Assist no pricing is published, and the mandatory setup and data migration fee means the first-year cost is materially above the recurring subscription, which is easy to miss when budgeting.; Nautilus Labs limited to maritime shipping industry use case, not applicable for other transportation sectors
- They diverge on capability: Harbour Assist covers Berth and mooring management, Nautilus Labs covers AI-powered optimization.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Harbour Assist and Nautilus Labs actually diverge.
| Attribute | Harbour Assist | Nautilus Labs |
|---|---|---|
| Starting price | On request | $1000/month |
| Pricing model | quote | subscription |
| Platforms | Web, iOS, Android | Web |
| Founded | Unknown | 2016 |
Identical on both: free tier (No), user rating (Not yet rated), category (Maritime).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Harbour Assist
- Berth and mooring management
- Contracts and licences
- Recurring invoicing
- Customer portal
- Boatyard work orders
- Team tasking
- Online reservations
- Reporting
Only in Nautilus Labs
- AI-powered optimization
- Emissions tracking
- Fuel efficiency
- Performance benchmarking
- IoT sensors
- Vessel data recorders
- Fleet management
- Web support
What people use each for
The jobs each tool is most often brought in to do.
Harbour Assist
- A trust port managing several hundred moorings with annual licence renewals and arrears chasingnot Nautilus Labs
- A sailing club combining membership, berthing and bar accounts under one customer recordnot Nautilus Labs
- A boatyard scheduling lifts and winter storage alongside berth contractsnot Nautilus Labs
- A harbour office cutting phone traffic by moving invoice payment and service requests to a customer portalnot Nautilus Labs
Nautilus Labs
No use cases recorded yet. See the Nautilus Labs review.
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Harbour Assist
- No pricing is published, and the mandatory setup and data migration fee means the first-year cost is materially above the recurring subscription, which is easy to miss when budgeting.
- The vendor explicitly does not discount, so a small harbour has no negotiating room even when the entry point is a stretch for its budget.
- Ownership by ClearCourse, a private-equity-backed consolidator of vertical software, brings the pricing and roadmap risks that come with that model, and buyers should ask about uplift terms before committing.
- It is built for United Kingdom and Irish harbour practice, so an operator elsewhere gets a system full of concepts that do not match local regulation.
- There is no marketplace or booking demand attached, so unlike Dockwa it fills no berths for you; visitor income still depends on your own marketing.
Nautilus Labs
- Limited to maritime shipping industry use case, not applicable for other transportation sectors
- Requires integration with vessel data collection systems for full functionality
Pricing, plan by plan
Harbour Assist
On request- Harbour Assist$undefined/month
- Quoted by size and complexity of the operation
- Directory listings place the entry point near GBP 400 per month
- Mandatory setup and installation fee covering customisation, data migration and training
Nautilus Labs
$1000/month- Fleet Platform$3000/month
- AI optimization
- Emissions tracking
- Performance analytics
Which should you pick?
Choose Harbour Assist if
- You need berth and mooring management.
- You work on Web, iOS, Android.
- You also want contracts and licences.
Choose Nautilus Labs if
- You need ai-powered optimization.
- You also want emissions tracking.
Questions people ask
- Is Harbour Assist or Nautilus Labs better?
- Neither clearly leads. Harbour Assist starts at On request and Nautilus Labs at $1000/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Harbour Assist or Nautilus Labs?
- Harbour Assist starts at On request and Nautilus Labs at $1000/month.
- Does Harbour Assist or Nautilus Labs run on more platforms?
- Harbour Assist runs on Web, iOS, Android. Nautilus Labs runs on Web.
- What is Harbour Assist best used for?
- Harbour Assist is most often used for a trust port managing several hundred moorings with annual licence renewals and arrears chasing, a sailing club combining membership, berthing and bar accounts under one customer record, a boatyard scheduling lifts and winter storage alongside berth contracts, a harbour office cutting phone traffic by moving invoice payment and service requests to a customer portal. Of those, a trust port managing several hundred moorings with annual licence renewals and arrears chasing and a sailing club combining membership, berthing and bar accounts under one customer record are not what Nautilus Labs is typically brought in for.
- What can Harbour Assist do that Nautilus Labs cannot?
- Harbour Assist covers Berth and mooring management, Contracts and licences, Recurring invoicing, Customer portal. Nautilus Labs covers AI-powered optimization, Emissions tracking, Fuel efficiency, Performance benchmarking.
Answered from the vendors’ own pages
Harbour Assist: How much does Harbour Assist cost?
It is quoted by size and complexity. Directory listings put the entry point near 400 pounds a month, and every client also pays a setup fee for customisation, migration and training.
Nautilus Labs: What does Nautilus Labs do?
Nautilus Labs is a maritime AI platform that optimizes vessel performance and reduces emissions through voyage optimization, real-time prediction, and post-voyage analysis. The platform helps shipping operators improve fuel efficiency and meet decarbonization goals.
SourceHarbour Assist: Does it bring visitor bookings?
No. It takes online visitor reservations through your own website but has no consumer marketplace, so demand generation remains your responsibility.
Nautilus Labs: Does Nautilus Labs help with sustainability?
Yes, Nautilus Labs' primary purpose is decarbonization. The platform optimizes ETA, fuel consumption, and CII metrics while providing emission reduction recommendations and vessel maintenance insights to shipping operators.
SourceHarbour Assist: Who owns it?
ClearCourse, a private-equity-backed group that acquires vertical software businesses in the United Kingdom.
Nautilus Labs: Who acquired Nautilus Labs?
Danelec, a Copenhagen-based maritime technology company, acquired Nautilus Labs in November 2023. The platform continues to operate and support customers on existing terms.
SourceHarbour Assist: Does it handle swinging moorings and drying berths?
Yes, and that is one of the reasons British harbours choose it over marina software designed around American pontoon dockage.
Related pages
More on Harbour Assist
More on Nautilus Labs
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