# Absolute Tides vs SailboatData

The clearest difference is update cadence: SailboatData at every 3 weeks against Absolute Tides's every 5 months. SailboatData also leads on review sentiment (89% vs 67%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Absolute Tides sells 11 one-off in-app purchases and SailboatData sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Absolute Tides ships an update every 5 months, SailboatData every 3 weeks. The most recent releases landed on August 18, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Absolute Tides | SailboatData |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (295 ratings)](https://appshunter.io/ios/app/sailboatdata/id1545197438/reviews)** |
| Number of ratings | — | **295** |
| Positive reviews | 67.1% of reviews | **88.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 20 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Darren Edwards](https://appshunter.io/developer/1055828981) | [VMG Media, LLC](https://appshunter.io/developer/1545197440) |

## What reviewers say

### Absolute Tides

[App page](https://appshunter.io/ios/app/absolute-tides/id1055828982)

Access official UKHO tidal data offline for up to a year in advance. View monthly tide tables, daily charts, and tidal streams. Includes weather forecasts and anchoring assistance.

**Highlights:** Offline UKHO tidal data, Annual data plugins, Monthly tide tables, Daily tide charts, Tidal stream view, Met Office weather forecast, Anchoring assistance

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UK Tides 2016 | Free | one-time |
| UK Tides 2017 | Free | one-time |
| UK Tides 2018 | Free | one-time |
| UK Tides 2019 | Free | one-time |
| UK & Eire Tides 2020 | Free | one-time |
| UK & Eire Tides 2021 | Free | one-time |
| UK & Eire Tides 2022 | $2.99 | one-time |
| UK & Eire Tides 2023 | $2.99 | one-time |
| UK & Eire Tides 2024 | $2.99 | one-time |
| UK & Eire Tides 2026 | $2.99 | one-time |
| UK & Eire Tides 2025 | $2.99 | one-time |


### SailboatData

[App page](https://appshunter.io/ios/app/sailboatdata/id1545197438)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Monthly Access | $0.99 | per month |
| 3 Monthly Access | $1.99 | per 3 months |
| 6 Monthly Access | $2.99 | per 6 months |
| 12 Monthly Access | $3.99 | per year |


## Frequently asked questions

### Is Absolute Tides free?

Absolute Tides is free to download, with in-app purchases available.

### Is SailboatData free?

SailboatData is free to download, with in-app purchases available.

### Do Absolute Tides or SailboatData have ads?

Neither Absolute Tides nor SailboatData shows ads.

### Which is updated more often, Absolute Tides or SailboatData?

Absolute Tides ships an update every 5 months, and SailboatData every 3 weeks. Most recently, Absolute Tides was updated on August 18, 2026 and SailboatData on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*