Caern vs Postos JM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Emergency service requests
- View open bills
- View open records
- Find service locations
- Water outage reporting
- Leak reporting
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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.
Postos JM
This app provides information about a network of fuel stations across Rio Grande do Norte. It highlights the company's history, extensive reach, and commitment to quality service through its dedicated team.
- Company history and legacy
- Network of 16 fuel stations
- Presence across Rio Grande do Norte
- Commitment to quality standards
- Information on company team
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Iniciamos nossa história em 1980 com o primeiro posto combustíveis. Hoje a empresa tem 40 anos e o legado que o nosso fundador Jonatas Martins Bezerra começou já está com 16 postos distribuídos por todo o estado do Rio Grande do Norte. São muitos números, mas nenhum é mais importante que a nossa equipe. Hoje temos mais de 100 colaboradores que com muito empenho fazem nossos postos terem o padrão de qualidade que queremos, tanto para nossos clientes quanto para nossos fornecedores.
Screenshots
Verdict
The clearest difference is review sentiment: Postos JM at 100% against Caern's 76%. Postos JM also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Caern ships an update every 5 months, Postos JM every 6 months. The most recent releases landed on October 4, 2026 and September 25, 2026 respectively.
| Parameter | Caern | Postos JM |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 76.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Caern - Companhia de Aguas e Esgotos do Rio Grande do Norte | POSTOAKI DESENVOLVIMENTO TECNOLOGICO LTDA |
Customer experience
Caern
Postos JM
In-app purchases
Caern
No in-app purchases
Postos JM
No in-app purchases
Questions
Is Caern free?
Is Postos JM free?
Do Caern or Postos JM have ads?
Which is updated more often, Caern or Postos JM?
Other comparisons
