Comparison

AlertaMobile vs Extrema

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

Head to head

About

AlertaMobile

Monitor your security system remotely from your phone or tablet. Check alarm status, arm/disarm, view live camera feeds, and manage service orders. You can also make calls to registered contacts.

Highlights

Monitor alarm status
Arm and disarm system
View live camera feeds
Check events and service orders
Call registered contacts

Features

Read full description

O AlertaMobile é um aplicativo móvel onde o cliente monitorado pode acompanhar diretamente via celular ou tablet todas as atividades do seu sistema de segurança. Por meio do aplicativo é possível saber o status do painel de alarme, armá-lo e desarmá-lo, visualizar as câmeras ao vivo, verificar eventos e ordens de serviço abertas e realizar chamadas telefônicas para contatos cadastrados no seu perfil.

About

Extrema

Features

Read full description

O Extrema Mobile é um aplicativo móvel onde o cliente monitorado pode acompanhar diretamente via celular ou tablet todas as atividades do seu sistema de segurança. Por meio do aplicativo é possível saber o status do painel de alarme, armá-lo e desarmá-lo, visualizar as câmeras ao vivo, verificar eventos e ordens de serviço abertas e realizar chamadas telefônicas para contatos cadastrados no seu perfil.

Screenshots

AlertaMobile4 screens

Extrema4 screens

Verdict

The call

AlertaMobile and Extrema are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

AlertaMobile ships an update every 2 months, Extrema monthly. The most recent releases landed on June 4, 2026 and September 16, 2026 respectively.

ScorecardNo meaningful differences

AlertaMobile versus Extrema: the parameters behind the verdict, then further details
Parameter	AlertaMobile	Extrema
Price	Free	Free
Positive reviews	100.0% of reviews	—
Update frequency	Every 2 months	Monthly — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.1	15.1
Further details — not scored
Size	110 MB	114 MB
Age rating	4+	4+
Developer	Alerta Seguranca Eletronica e Rastreamento Ltda	EXTREMA COMERCIO E MANUTENCAO DE EQUIPAMENTOS ELETRONICOS LTDA

In-app purchases

None

AlertaMobile

No in-app purchases

None

Extrema

No in-app purchases

Questions

Is AlertaMobile free?

AlertaMobile is free to download, with no in-app purchases.

Is Extrema free?

Extrema is free to download, with no in-app purchases.

Do AlertaMobile or Extrema have ads?

Neither AlertaMobile nor Extrema shows ads.

Which is updated more often, AlertaMobile or Extrema?

AlertaMobile ships an update every 2 months, and Extrema monthly. Most recently, AlertaMobile was updated on June 4, 2026 and Extrema on September 16, 2026.