Comparison

WatSen vs Avycast

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

WatSen

Monitor Black Sea water temperatures with real-time data. Utilizes automated buoys during summer and satellite imagery in colder months for comprehensive tracking.

Highlights
  • Black Sea water temperature tracking
  • Automated buoy stations
  • Satellite data display
  • Summer and winter monitoring
  • Real-time data
Features
Read full description

This app is designed to track water temperature across the Black Sea area. During the summer season, automated buoy stations are deployed to monitor sea water temperature, while in colder seasons, satellite data is displayed.

About

Avycast

Features
Read full description

Avycast brings together the official avalanche bulletins of around 30 warning services in 21 countries across four continents, presented in a single, consistent interface and translated into 12 languages. Built for backcountry skiers, splitboarders, alpinists, ski tourers, and mountain guides who plan trips across borders — from the Alps to the Southern Alps, from Hokkaido to the Rockies. KEY FEATURES • Daily bulletins from official warning services — EAWS member services, SAIS (Scotland), Avalanche Canada, US avalanche centers, JAN (Japan Avalanche Network), Niseko Avalanche Institute, NZAA (New Zealand), Avalanchas.com.ar (Argentina), and Gudauri (Georgia) • 12 languages — English, German, Spanish, French, Italian, Japanese, Norwegian, Swedish, Czech, Romanian, Russian, Georgian • Danger rating by elevation band — Alpine, Treeline, Below Treeline • Active avalanche problems with size, frequency, and stability details • The full forecast text from the issuing service — highlights, avalanche activity, and snowpack analysis • Slope Risk Evaluator — combines the current danger rating with terrain exposure class (ATES) to suggest whether a planned tour is "Normal Caution", "Extra Caution", or "Not Recommended", based on published avalanche research (NAPADS, CMAH) • Favorites — save the regions you travel in for one-tap access • Original bulletin viewer — read the source bulletin in its native format at any time • Location-based — automatically finds the nearest region with an active bulletin • Faithful to the source — we never rewrite or "improve" danger ratings, and the translation follows the forecaster's own words instead of summarizing them COVERAGE (21 COUNTRIES) Europe — Italy, France, Switzerland, Austria, Germany (Bavaria), Slovenia, Spain (including the Catalan Pyrenees), Andorra, Norway, Sweden, Finland, Czech Republic, Slovakia, Romania, Great Britain (Scottish Highlands) Caucasus — Georgia (Gudauri) Asia — Japan (JAN regions and Niseko) North America — Canada, United States South America — Argentina (Bariloche, El Chaltén, San Martín de los Andes) Oceania — New Zealand (13 NZAA regions) More regions are added regularly. Every region also has a free forecast page on the web at avycast.app — one page per region, no account needed. DATA SOURCES All bulletins are fetched directly from the issuing avalanche warning service. Translations are generated automatically for your convenience — for critical decisions, always consult the original source bulletin (accessible via the "View original" button on every screen). IMPORTANT SAFETY NOTICE This app provides decision support based on published avalanche research. It is NOT a substitute for professional judgment, formal avalanche education, or local expertise. Always: — Read the original bulletin — Travel with trained partners — Carry a transceiver, shovel, and probe — Know how to use them Avalanche terrain is inherently hazardous. No app, bulletin, or tool can make it safe — only you can make informed decisions. SUBSCRIPTION Free: the full bulletin for your region, with one region change per day. Premium: unlimited region switching and favorites — monthly or annual, with the annual plan costing less than twelve monthly ones and its first 7 days free. Auto-renewing, cancel anytime in Settings > Apple Account > Subscriptions. Prices are localized per region and shown in the App Store before you subscribe. ——— Terms of Use (EULA): https://avycast.app/terms.html Privacy Policy: https://avycast.app/privacy.html

Screenshots

WatSen4 screens
Avycast4 screens

Verdict

The call

The clearest difference is in-app purchases: WatSen at none against Avycast's 2. Avycast's advantage is update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Avycast sells 2 in-app purchases, starting at $2.99 per month. WatSen asks for nothing beyond the download.

UpkeepUpdate frequency

WatSen ships an update fortnightly, Avycast weekly. The most recent releases landed on November 1, 2026 and October 22, 2026 respectively.

Scorecard2 real differences · 6 level
WatSen versus Avycast: the parameters behind the verdict, then further details
ParameterWatSenAvycast
PriceFreeFree
Positive reviews68.3% of reviews—
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size17 MB36 MB
Age rating4+4+
DeveloperArtem KislitsynMikhail Konkov

In-app purchases

None

WatSen

No in-app purchases

2 purchases

Avycast

Subscriptions2
  • Premium Monthly$2.991 Month
  • Premium Yearly7 Days trial$14.991 Year

Questions

Is WatSen free?
WatSen is free to download, with no in-app purchases.
Is Avycast free?
Avycast is free to download, with in-app purchases available.
Do WatSen or Avycast have ads?
Neither WatSen nor Avycast shows ads.
Which is updated more often, WatSen or Avycast?
WatSen ships an update fortnightly, and Avycast weekly. Most recently, WatSen was updated on November 1, 2026 and Avycast on October 22, 2026.

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