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Agriculture · head to head

Davis Instruments WeatherLink vs fieldmargin

Davis Instruments WeatherLink logo

Davis Instruments WeatherLink

Agriculture

Cloud service for Davis weather stations, priced per device per month with a genuinely usable free tier

From
Free
Rated
-
Full reviewWebsite
fieldmargin logo

fieldmargin

Agriculture

Per-farm field mapping, records and team messaging for livestock and arable farms

From
£3.75/month
Rated
-
Full reviewWebsite

The short version

  • Only Davis Instruments WeatherLink has a free tier, so it costs nothing to try first.
  • Each has a real cost: Davis Instruments WeatherLink pricing is per device, so a grower with a dozen stations pays a dozen subscriptions, and at Pro+ that is over 1,200 US dollars a year in software on top of hardware that already cost several thousand.; fieldmargin per-farm pricing inverts badly at the small end: a 30 hectare holding pays the same as a 3,000 hectare estate, so the effective cost per hectare on a smallholding is many times what a large farm pays.
  • They diverge on capability: Davis Instruments WeatherLink covers Per-station cloud dashboards, fieldmargin covers Field mapping.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Davis Instruments WeatherLink and fieldmargin actually diverge.

Attributes where Davis Instruments WeatherLink and fieldmargin differ
AttributeDavis Instruments WeatherLinkfieldmargin
Starting priceFree£3.75/month
Pricing modelPer device per monthPer farm per month, unlimited hectares
Free tierYesNo

Identical on both: platforms (Web, iOS, Android), user rating (Not yet rated), category (Agriculture).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Davis Instruments WeatherLink

  • Per-station cloud dashboards
  • Custom charting
  • Data export
  • Shareable public links
  • Third-party uploads
  • Mobilize agricultural views
  • Integrated pest management models
  • Network map

Only in fieldmargin

  • Field mapping
  • Offline mobile
  • Team activity feed
  • Job assignment
  • Livestock groups
  • Input and application records
  • NDVI satellite imagery
  • Cost per field

What people use each for

The jobs each tool is most often brought in to do.

Davis Instruments WeatherLink

  • An orchard running frost protection that needs one-minute temperature data to decide when to start wind machinesnot fieldmargin
  • A vineyard driving disease models from on-site rather than airport weathernot fieldmargin
  • A research station exporting long historical records from several instrumentsnot fieldmargin
  • A grower sharing a public station page with neighbours and a spray contractornot fieldmargin

fieldmargin

  • A 900 hectare arable estate that wants field records without paying a per-hectare licence feenot Davis Instruments WeatherLink
  • A livestock farm tracking mob movements and grazing rotation across fields on a phone with no signalnot Davis Instruments WeatherLink
  • A farm manager assigning and checking off daily jobs for seasonal staff without phone callsnot Davis Instruments WeatherLink
  • A mixed farm that wants photos and notes attached to specific field locations for later referencenot Davis Instruments WeatherLink

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Davis Instruments WeatherLink

  • Pricing is per device, so a grower with a dozen stations pays a dozen subscriptions, and at Pro+ that is over 1,200 US dollars a year in software on top of hardware that already cost several thousand.
  • The free tier only uploads to third parties every 15 minutes, which is too coarse for frost protection and short-interval spray decisions, so the tier that exists is not the tier a commercial grower can use.
  • Davis directs bulk device management to a sales conversation rather than publishing a volume discount, so large networks cannot budget from the public rate card.
  • Three-year commitments are the only way to reach the lower per-device rate, which locks a grower into a platform for longer than a station deployment plan often survives.
  • The hardware is durable enough to outlive several software generations, and owners of older Vantage stations have repeatedly had to buy new data loggers or gateways to stay compatible with the current cloud, turning a maintenance-free instrument into a recurring purchase.

fieldmargin

  • Per-farm pricing inverts badly at the small end: a 30 hectare holding pays the same as a 3,000 hectare estate, so the effective cost per hectare on a smallholding is many times what a large farm pays.
  • It is not an agronomy platform, so there is no variable rate prescription engine and no nutrient planning to a standard a UK agronomist will certify, meaning most arable users still pay for Gatekeeper or an agronomist's own system alongside it.
  • There is no direct submission route into Basic Payment Scheme, Sustainable Farming Incentive or equivalent schemes, so the compliance paperwork that costs farms real money still has to be assembled elsewhere.
  • Machine integration is limited compared with Climate FieldView or Operations Center; as-applied data from the sprayer or drill generally is not flowing in automatically, so application records depend on someone typing them.
  • Satellite NDVI is confined to the top tier and is standard public imagery, so cloud cover in a British winter means long gaps and the imagery is not a substitute for the aircraft or drone capture that specialist providers sell.

Pricing, plan by plan

Davis Instruments WeatherLink

Free
  • BasicFree
    • Data viewing and export
    • Custom charting and network map
    • Mobile app access
  • Pro$3.95/month
    • Per device, billed annually
    • 3.35 USD per device per month on a 3 year plan
    • 6 shareable links
  • Pro+$8.95/month
    • Per device, billed annually
    • 7.65 USD per device per month on a 3 year plan
    • 10 shareable links

fieldmargin

£3.75/month
  • Essentials$3.75/month
    • Field mapping and boundaries
    • Field notes and photos
    • Unlimited team members
  • Plus$20/month
    • Everything in Essentials
    • Job assignment and tracking
    • Input and application records
  • Pro$30/month
    • Everything in Plus
    • NDVI satellite imagery
    • Cost per field and crop analysis

Which should you pick?

Choose Davis Instruments WeatherLink if

  • You need per-station cloud dashboards.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want custom charting.
Davis Instruments WeatherLink review

Choose fieldmargin if

  • You need field mapping.
  • You work on Web, iOS, Android.
  • You also want offline mobile.
fieldmargin review

Questions people ask

Is Davis Instruments WeatherLink or fieldmargin better?
Neither clearly leads. Davis Instruments WeatherLink starts at Free and fieldmargin at £3.75/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Davis Instruments WeatherLink or fieldmargin?
Davis Instruments WeatherLink has a free tier; the other does not. Paid plans start at Free for Davis Instruments WeatherLink and £3.75/month for fieldmargin.
Does Davis Instruments WeatherLink or fieldmargin run on more platforms?
Both run on Web, iOS, Android, so platform support will not decide this one for you.
Can I use Davis Instruments WeatherLink for free?
Yes. Davis Instruments WeatherLink has a free tier, so you can try it without paying. fieldmargin starts at £3.75/month.
What is Davis Instruments WeatherLink best used for?
Davis Instruments WeatherLink is most often used for an orchard running frost protection that needs one-minute temperature data to decide when to start wind machines, a vineyard driving disease models from on-site rather than airport weather, a research station exporting long historical records from several instruments, a grower sharing a public station page with neighbours and a spray contractor. Of those, an orchard running frost protection that needs one-minute temperature data to decide when to start wind machines and a vineyard driving disease models from on-site rather than airport weather are not what fieldmargin is typically brought in for.
What can Davis Instruments WeatherLink do that fieldmargin cannot?
Davis Instruments WeatherLink covers Per-station cloud dashboards, Custom charting, Data export, Shareable public links. fieldmargin covers Field mapping, Offline mobile, Team activity feed, Job assignment.

Answered from the vendors’ own pages

Davis Instruments WeatherLink: Is WeatherLink free?

There is a permanently free Basic tier with charting and export, but third-party uploads run only every 15 minutes and there are no shareable links.

fieldmargin: Does it charge per hectare?

No. Subscriptions are per farm with unlimited hectares and unlimited team members, which is why it is cheap on large acreages and proportionally expensive on small ones.

Davis Instruments WeatherLink: What does the paid tier actually add?

Faster upload intervals, five minutes on Pro and one minute on Pro+, plus shareable public links. The faster cadence is what matters for frost and spray timing.

fieldmargin: Can I submit my BPS or SFI claim from it?

No. It holds the records that support a claim but there is no direct submission integration, so the claim itself is prepared elsewhere.

Davis Instruments WeatherLink: Is pricing per account or per station?

Per device. Every station you own needs its own subscription.

fieldmargin: Does it work without mobile signal?

Yes. The mobile apps capture records offline and sync when the phone regains a connection, which is the main reason it gets used in the far corners of a farm.

Davis Instruments WeatherLink: Can I get the data out via an API?

Yes, Davis publishes a WeatherLink API, but practical use depends on your account tier and station model, so confirm before designing around it.

fieldmargin: Is there a free plan?

There is a 14 day trial rather than a permanently free tier. After that every farm is on a paid plan.

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