# SwellLab — Surf Forecast, Ratings & Tides > Surf Forecast, Ratings & Tides (iPhone/iPad app by Chia-Yu Huang.) - Source: https://appshunter.io/ios/app/swelllab/id6779987088 (this page in markdown: same URL + `.md`) - Developer: [Chia-Yu Huang](https://appshunter.io/developer/6779987090) - Category: Weather, Sports - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 18.0 · 24 MB - Languages: American English, Japanese, Chinese (Traditional, Taiwan) - Released: 2026-07-23 - Data updated: 2026-08-31 - User reviews in markdown: https://appshunter.io/ios/app/swelllab/id6779987088/reviews.md ## What is SwellLab? SwellLab is a surf forecast app built for surfers in Taiwan. Covering 40+ surf spots across the island, it turns wave height, period, swell direction, wind, and tides into easy-to-understand localized ratings — helping you quickly decide where to surf and when to paddle out. Key features: • Surf forecast & scoring — a 10-day outlook with an easy 1–5 rating for every spot, tuned to each break's swell window, tide preference, and bottom type • Best Surf ranking — see which spots are firing right now, sorted across the whole island • Tide & moon — tide charts and moon phase together, so you know exactly when the window opens • Live cams — check real-time video before you drive out • Typhoon tracking — official CWA typhoon and marine warnings, plus swell forecasts through typhoon swell events • Pocket Spots — save your go-to breaks for one-tap access • Surf Alerts — get notified when your saved spots hit the conditions you're after • Multi-source forecast data from ECMWF, NOAA, DWD, Météo-France, and Taiwan's CWA SwellLab Pro unlocks the full 10-day forecast at our most advanced spots, hourly data refresh, unlimited Pocket Spots and Surf Alerts, and the full Best Surf ranking beyond today. Early-bird pricing available for a limited time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms and Privacy Policy: https://swell-lab.com/privacy https://swell-lab.com/terms ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | SwellLab Pro Monthly | $2.99 | per month | | SwellLab Pro Annual | $29.99 | per year | ## Version history (last 5 releases) ### 2.5.1 — 2026-08-23 Fixed several issues with how Pro subscription status is detected, making Pro access more reliable. ### 2.5 — 2026-08-21 Fixed live cams Fixed tide charts appearing blank on some days Subscription • Added Manage Subscription under Settings → About. • More reliable subscription and restore handling across devices and reinstalls. ### 2.4 — 2026-08-15 • Spot guides for 50 breaks Access and parking, who the wave suits, when to go, what's on site, and the local etiquette worth knowing. • Buoy readings now colour-matched ### 2.3 — 2026-08-13 • Wind gusts now count toward spot scores Scoring used to look at average wind speed only. Gusty hours — light on average but punchy in the gusts — now score lower and say so, reflecting the chopped-up face you actually paddle out into. • Scoring fixes for west and southwest coast spots Per-spot wave height curves tightened, and Mashagou's swell window is now measured against the true coastline normal. • Forecast sample points moved inshore at three spots They were sitting too far offshore. Wave height and wind now match what's happening at the beach. • Simpler Stories tabs Just Latest and Regions now — open it and you're on today's newest posts. ### 2.2 — 2026-08-09 Major forecast update • Improved how ocean data is integrated — wave height, period, and direction now read noticeably closer to the water on everyday small-to-mid days. • Recalibrated the rating thresholds for several spots so "is it worth paddling out" better matches on-the-ground reports. • Fixed the Nearby list showing spots in the wrong order when location took a moment to resolve. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*