SailboatData vs TetraScience
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SailboatData
Access a comprehensive database of production sailboat specifications offline. Compare models, search by detailed criteria, and save favorites with personal remarks. Ideal for buyers and marine professionals alike.
- Offline sailboat database access
- Side-by-side model comparison
- Search by detailed specifications
- Save favorite sailboats and designers
- Add personal remarks to models
- Sync favorites and remarks via iCloud
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The world’s most recognized database for production sailboat specifications. This is the must-have app for those looking to purchase a sailboat as well as for DIYers, sailmakers, yacht brokers, marinas, riggers, and all other marine professionals. Unlike our website, the app allows access to our database without the need for an internet connection. After downloading, you can experience the full app functionality for the first 2 hours. After that, continue on with the free basic version or subscribe to keep full access. This costs as little as a good coffee (for a yearly subscription, our cheapest option) and supports us adding more useful features and extend the database. The current features include: • Scrollable list containing over 9,200 sailboat models. • Side-by-side sailboat model compare. • Scrollable lists with all designers, builders, and associations. • The scrollable lists have an alphabetic index for quick access. • Each list has a name search bar which updates the list as you type. • Ability to select sailboats, designers, builders, and associations as your favorite. • Toggle button to quickly switch between showing all or only your favorites. • Ability to add your personal remarks for each sailboat model. • Favorites and remarks are shared between all your devices using Apple iCloud. • Refined search by LOA, LWL, Hull type, Keel type, Displacement, Beam, Draft, Rig type, Years Built and all our Ratios. • Ability to sort the refined search results on any of the search parameters. • Settings to personalize displayed units and other features. As you scroll through the sailboat list and look at sailboat and designer details, the corresponding images are downloaded via internet. Once an image has been downloaded it is stored on your device; the maximum storage used is about 500MB.
TetraScience
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The TetraScience mobile application to support you on weighing process.
Screenshots
Verdict
The clearest difference is in-app purchases: TetraScience at none against SailboatData's 4. TetraScience also leads on update cadence (every 9 days vs every 4 weeks) and iOS requirement (13.4 vs 15.5). On price, ads 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. SailboatData sells 4 in-app purchases, starting at $0.99 per month. TetraScience asks for nothing beyond the download.
SailboatData ships an update every 4 weeks, TetraScience every 9 days. The most recent releases landed on September 24, 2026 and May 17, 2026 respectively.
| Parameter | SailboatData | TetraScience |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (293 ratings) — better | — |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 293 — better | — |
| Update frequency | Every 4 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 13.4 — better |
| Further details — not scored | ||
| Size | 20 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | VMG Media, LLC | TetraScience Inc. |
In-app purchases
SailboatData
- 1 Monthly Access$0.991 Month
- 3 Monthly Access$1.993 Months
- 6 Monthly Access$2.996 Months
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- 12 Monthly Access$3.991 Year
TetraScience
No in-app purchases
Questions
Is SailboatData free?
Is TetraScience free?
Do SailboatData or TetraScience have ads?
Which is updated more often, SailboatData or TetraScience?
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