Comparison

WD vs Caern

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

Head to head
About

WD

Access real-time video streams from JFL DVRs, NVRs, and IP cameras. Monitor up to 16 channels simultaneously, control PTZ cameras, and manage multiple devices remotely. Requires a Wi-Fi or 3G connection.

Highlights
  • Real-time video viewing (up to 16 channels)
  • PTZ camera control (pan, tilt, zoom)
  • Preset configuration and calibration
  • Quick photo capture
  • Manage up to 100 device sets
  • P2P connection support
Features
Read full description

Esse App pode ser usado para monitorar remotamente o vídeo em tempo real dos seguintes produtos JFL: DVR's, NVR's e as câmeras IP's JFL com suporte ao padrão de codificação H.264/H.265. Principais características: - Visualização em tempo real de até 16 canais de vídeo; - Controles sensíveis ao toque para ajustes de movimento, zoom e visualização prévia em câmeras PTZ (a câmera PTZ deve estar conectada a um DVR JFL com suporte a esta função); - Apoio para ativação de pré-configuração e novas configurações bem como calibração do brilho; - Suporte para tirar foto rápida. - Gerenciamento de até 100 conjuntos de dispositivos. - Suporte para conexão via P2P com o DVR JFL (esta função esta disponível apenas para DVR's com versão de software igual ou superior a V2.2.13 build 140909). Notas: 1. Wi-Fi ou serviço de acesso 3G deve ser suportado pelo dispositivo; 2. Taxas de tráfego de rede pode ser produzido durante o uso deste software cliente. Por favor, consulte o Provedor de Serviços de Internet Local; 3. A visualização do vídeo em tempo real está relacionada com o desempenho da rede e do hardware do telefone. Se a exibição em tempo real não é fluente ou a tela aparece desfocada, reduza a resolução , taxa de quadros e taxa de bits da câmera, ou diminua a qualidade da imagem no software.

About

Caern

This utility app serves as a communication channel for users to request emergency services like water outages and leaks. It also allows for viewing open bills and records, and finding service locations.

Highlights
  • Emergency service requests
  • View open bills
  • View open records
  • Find service locations
  • Water outage reporting
  • Leak reporting
Features
Read full description

O aplicativo da Caern tem como objetivo ser mais um canal de relacionamento entre a Caern e você. Aqui é possível solicitar serviços emergenciais tais como falta de água, vazamentos, visualizar faturas em aberto, registros em aberto, procurar locais de atendimento e muito mais.

Screenshots

WD3 screens
Caern4 screens

Verdict

The call

The clearest difference is review sentiment: Caern at 76% against WD's 20%. Caern also leads on update cadence (every 5 months vs every 30 months). WD's advantage is rating (4.5 vs 3.3) and ratings volume (120 vs 3). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

WD holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: WD has 120 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 20% of WD's written reviews are positive against 76% of Caern's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

WD ships an update every 30 months, Caern every 5 months. Both last shipped on November 2, 2026.

Scorecard5 real differences · 5 level
WD versus Caern: the parameters behind the verdict, then further details
ParameterWDCaern
PriceFreeFree
Rating4.5 (120 ratings) — better3.3 (3 ratings)
Positive reviews19.6% of reviews76.5% of reviews — better
Number of ratings120 — better3
Update frequencyEvery 30 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size354 MB27 MB
Age rating4+4+
DeveloperJFL AlarmesCaern - Companhia de Aguas e Esgotos do Rio Grande do Norte

Customer experience

WD

All ratings121 ratings
Positive87.6%
Neutral5.0%
Negative7.4%
Written reviews51 reviews
Positive19.6%
Neutral17.6%
Negative62.7%

Caern

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews51 reviews
Positive76.5%
Neutral3.9%
Negative19.6%

In-app purchases

None

WD

No in-app purchases

None

Caern

No in-app purchases

Questions

Is WD free?
WD is free to download, with no in-app purchases.
Is Caern free?
Caern is free to download, with no in-app purchases.
Which has better reviews, WD or Caern?
WD is rated higher. WD averages 4.5 out of 5 from 120 ratings, while Caern averages 3.3 from 3 ratings.
Do WD or Caern have ads?
Neither WD nor Caern shows ads.
Which is updated more often, WD or Caern?
WD ships an update every 30 months, and Caern every 5 months. Most recently, WD was updated on November 2, 2026 and Caern on November 2, 2026.

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