Comparison

Avalon Offshore vs Pest Prophet

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

Head to head
About

Avalon Offshore

This app provides advanced weather routing and navigation for sailors. It offers detailed weather forecasts from numerous models, collision alerts, and route optimization based on boat draft. Compatible with various nautical maps and augmented reality glasses.

Highlights
  • Advanced weather routing
  • NMEA 0183 and AIS integration
  • Collision alarm
  • Regatta start management
  • 65 automatic weather models
  • Bathymetric routing
  • Navionics Boating map compatibility
Features
Read full description

Avalon Offshore is a complete weather routing and navigation application . It works on iPads and iPhones. It also works on the new generation of Macbook Air and Pro,equipped with an ARM 64 chipset. Avalon Offshore integrated the whole set of functions that are useful to cruisers and offshore racers; weather routing, weather, navigation with NMEA 0183 and AIS collision alarm, anchoring alert, regatta start management wit laylines, etc… Avalon includes automatic loading of 65 weather models: NOAA GFS, Metro France Arpege,and Arome, DVD Icon, OpenWRF Skiron, etc Avalon also includes advanced functions such as: - Bathymetric weather routing, allowing calculation of routes taking into consideration the draft of the boat. - Simultaneous comparaison of routes across different weather models, different routes options, etc… - Free use of Avalon VPP to calculate customised VPP polars for single hull boats (main sail + genoa, code 0, gennaker, spinnaker, staysail and mizzen sail. - High compression of weather data on several models (GFS, Arpege, Icon, NAM Caraïbes et USA East) enabling to reduce by up to 95% volume of data, very efficient for satellite transmission (Iridium Go, Iridium Inmarsat, etc) - Easy weather routing module (from harbor to harbor) for a quick start of the app. - Compatible with ©Navionics Boating maps without additional cost. - Interfaced with ©Navily for a quick selection of the best moorings and harbors. - On time arrival : Calculate departure time to arrive on a given time - Compatible with ActiveLook® Augmented Reality glasses VPP Polars - Free use of Avalon VPP to customize your boat velocity preduction and adapt them to the exact caracteristics of your boat - Polar captation at sea Nautical Maps - Free raster nautical maps: NOAA, Linz, Brasil, New Zealand - In-app pack of maps derived from UKHO or SHOM covering France, UK Belgium, Portugal, Spain Carribean, Eastern and Western Mediterranean, Transatlantic, ... - Personal maps support: mbtiles, tif, kap, geotiff - Navionics maps: You can use your Navionics Boating maps with Avalon free of charge. Weather Sources - 65 automatic weather sources (wind, gust, current, wave and general weather) included in the Premium Option (in-app purchase) - Capability to load external grib files (as an alternative to the Premium option) - Capability to load external current grib from Tidetech® Includes one month free use of Premium options (see below) IN-APP PURCHASE: PREMIUM OPTION Includes: - Iridium data compression (reduce by 6 transmitted volumes) - additional weather sources: Arome, Arpege, NAM, CEP, Skiron .... - Weather data up to 394 hours including Wind, Gust, Waves, Precipitation, Storms, Cloud Coverage, Pressure, Temperature - Integration of currents in route calculation in covered areas (worldwide, Iberia Biscay and Ireland and Mediterranean sea) - Waves (Swell and wind waves) Privacy Policy and Terms of Use at: http://www.avalon-routing.com/new/privacy/ Warning: Continued use of GPS running in the background can dramatically decrease battery life. Policy and Terms of Use at: http://www.avalon-routing.com/new/privacy/

About

Pest Prophet

This app provides predictive crop disease and insect risk models using advanced weather data. It helps farmers and advisors interpret risk levels and forecasts to optimize pest management strategies and conserve resources.

Highlights
  • Predictive crop disease risk models
  • Insect growing degree day models
  • Remotely gathered weather data
  • No additional weather stations required
  • Easily interpreted daily risk levels and forecasts
  • Integrated pest management support
Features
Read full description

Pest Prophet calculates crop disease risk models and insect growing degree day models based on remotely gathered weather data. It is easy to implement, with no additional weather stations or hardware required, and uses the most accurate weather data available to ensure the highest level of accuracy. Available models have been researched and tested by leading agricultural institutions. Pest Prophet gives farmers and pest advisors easily interpreted results in the form of daily risk levels and forecasts. This information can be used as part of an integrated pest management program, allowing farmers to improve spray decisions and maintain successful crop protection while conserving resources. SUBSCRIPTION PRICING AND TERMS You may use Pest Prophet for free with a single field and some limited features. Pest Prophet also offers several auto-renewing subscription options depending on how many fields you require: Professional - 1 Field: $19.99 per month $99.99 per year Professional - 2 Fields: $39.99 per month $199.99 per year Professional - 3 Fields: $59.99 per month $299.99 per year Professional - 4 Fields: $79.99 per month $399.99 per year Professional - 5 Fields: $99.99 per month $499.99 per year These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. The subscription will automatically renew unless turned off in your iTunes Account Settings at least 24 hours before current period ends. You can go to your iTunes Account settings to manage your subscription and turn off auto-renew. Your iTunes Account will be charged when the purchase is confirmed. If you subscribe before your free trial ends, the rest of your free trial period will be forfeited as soon as your purchase is confirmed. Terms And Conditions https://www.pestprophet.com/terms-and-conditions Privacy Policy https://www.pestprophet.com/privacy-policy

Screenshots

Avalon Offshore4 screens
Pest Prophet4 screens

Verdict

The call

The clearest difference is price: Pest Prophet at Free against Avalon Offshore's $35.00. Pest Prophet also leads on review sentiment (100% vs 75%). Avalon Offshore's advantage is in-app purchases (none vs 10) and update cadence (every 3 weeks vs every 3 months). On ads, monetization model, 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

Pest Prophet is free to download; Avalon Offshore costs $35.00 up front. Pest Prophet sells 10 in-app purchases, starting at $19.99 per month. Avalon Offshore asks for nothing beyond the download.

UpkeepUpdate frequency

Avalon Offshore ships an update every 3 weeks, Pest Prophet every 3 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Avalon Offshore versus Pest Prophet: the parameters behind the verdict, then further details
ParameterAvalon OffshorePest Prophet
Price$35.00Free — better
Rating—5.0 (3 ratings) — better
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings—3 — better
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size66 MB27 MB
Age rating4+4+
DeveloperAvalon Navigation SystemsFarm Czar

Customer experience

Avalon Offshore

Written reviews24 reviews
Positive75.0%
Neutral4.2%
Negative20.8%

Pest Prophet

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Avalon Offshore

No in-app purchases

10 purchases

Pest Prophet

Subscriptions10
  • 1 Field$19.991 Month
  • 2 Fields$39.991 Month
  • 3 Fields$59.991 Month
Show 7 more
  • 4 Fields$79.991 Month
  • 1 Field$99.991 Year
  • 5 Fields$99.991 Month
  • 2 Fields$199.991 Year
  • 3 Fields$299.991 Year
  • 4 Fields$399.991 Year
  • 5 Fields$499.991 Year

Questions

Is Avalon Offshore free?
Avalon Offshore costs $35.00, with no in-app purchases.
Is Pest Prophet free?
Pest Prophet is free to download, with in-app purchases available.
Do Avalon Offshore or Pest Prophet have ads?
Neither Avalon Offshore nor Pest Prophet shows ads.
Which is updated more often, Avalon Offshore or Pest Prophet?
Avalon Offshore ships an update every 3 weeks, and Pest Prophet every 3 months. Most recently, Avalon Offshore was updated on November 6, 2026 and Pest Prophet on November 4, 2026.

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