OnlyInboards vs OutboardListings
The inboard-only niche site versus the AI-powered outboard marketplace. Each built for a specific engine type.
Last updated: May 2026 · By the OutboardListings.com team
OutboardListings.com
- Founded: 2024
- HQ: Jacksonville, FL
- Focus: Outboard engines, marine parts, boats, trailers
- Fee: $99 / 90 days (flat, no commission)
- Directory: 27,000+ marine businesses
- Website: outboardlistings.com
OnlyInboards
- Founded: 2005
- HQ: United States
- Focus: Inboard boats and engines only
- Individual Fee: FREE (1 photo, 45 days) to $349.95
- Dealer Fee: Tiered plans
- Traffic: ~50K visits/mo
- Website: onlyinboards.com
OnlyInboards has been around since 2005, focused exclusively on inboard boats and engines. They offer a free tier (1 photo, 45 days) that is attractive for casual sellers. But the platform is tiny (~50K monthly visits), has no AI tools, and only serves inboard engines. If you have an outboard, stern drive, or marine parts to sell, OnlyInboards literally cannot help you. OutboardListings was built for everything OnlyInboards is not.
Head-to-Head Feature Comparison
| Feature | OutboardListings | OnlyInboards |
|---|---|---|
| Engine Types Supported | Outboards, stern drives, jets, inboards | Inboards only |
| Free Tier | No | Yes (1 photo, 45 days) |
| AI Engine Detection | Yes | No |
| Voice-to-Listing | Yes | No |
| Parts Marketplace | 13,800+ parts | No |
| Marine Directory | 27,000+ businesses | No |
| Buyer Verification | Phone verified | No |
| Monthly Traffic | Growing | ~50K/mo |
| Community Forums | 17 categories | No |
| SMS Alerts | Yes | No |
OnlyInboards: Strengths & Weaknesses
What OnlyInboards Does Well
- •Free tier available (1 photo, 45 days)
- •Niche focus on inboard boats and engines
- •Been around since 2005 — established in the inboard niche
- •Simple listing process
Where OnlyInboards Falls Short
- •Inboards only — no outboards, stern drives, or parts
- •Very small audience (~50K/mo)
- •No AI tools of any kind
- •No buyer verification
- •Free tier limited to 1 photo and 45 days
- •No community forums or marine content
- •Not BBB accredited
Why Sellers Choose OutboardListings Over OnlyInboards
- Supports all engine types: outboard, stern drive, jet, and inboard
- AI photo scanner for instant engine identification
- 13,800+ parts marketplace
- 27,000+ marine business directory
- Buyer phone verification
- Community forums with 17 categories
The Verdict
If you are selling an inboard boat and want a free listing with minimal features, OnlyInboards works. But for outboards, stern drives, parts, or any seller who wants AI tools and verified buyers, OutboardListings is the platform. They serve different niches with minimal overlap.