Comparison

COTEMIG Mobile vs My Rock

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

Head to head
About

COTEMIG Mobile

Access academic portal services, view grades and attendance, find job opportunities, and receive real-time notifications for important updates. Manage your academic life with ease.

Highlights
  • 2nd copy of payment slips
  • News and important notices
  • School report card (grades and absences)
  • Internship and job vacancies
  • Activity schedule
  • Class schedule
  • Enrollment for recovery and final exams
Features
Read full description

Acesse os principais serviços do portal acadêmico: * 2ª via de boletos * Notícias e avisos importantes * Boletim Escolar (notas e faltas) * Vagas de estágio e emprego * Agenda de atividades * Área de Arquivos * Horário de aula * Emissão de declarações * Inscrições para recuperação da etapa e final * Rematrícula - Colégio e Faculdade * Acesso à rede interna * Disciplinas matriculadas * Inscrição para o Exame Especial (somente faculdade) * Grade Vigente (somente faculdade) * Histórico escolar (somente faculdade) * Agenda dos laboratórios (somente faculdade) Receba notificações em tempo real: * Alterações de notas e faltas * Novos avisos * Novas ofertas de estágio ou emprego

About

My Rock

Access all class audio, practice vocabulary and grammar, and engage in interactive speaking exercises with AI voice recognition. Schedule support classes, purchase materials, and manage your course progress, including finances and grades.

Highlights
  • Class audio access
  • Vocabulary and grammar exercises
  • Interactive speaking practice with AI
  • Support class scheduling
  • Course material purchase
  • Administrative access (finance, grades)
Features
Read full description

O My Rock é o aplicativo oficial da Rock com ele você têm: - Todos os áudios das aulas. - Exercícios de compreensão de vocabulário e gramática - Exercícios de leitura e compreensão auditiva. - Exercícios interativos de speaking com reconhecimento de voz e validação por A.I. - Várias atividades complementares que trabalham todas as habilidades. - Agendamento de aulas de suporte. - Compra de material didático do curso. - Clube de vantagens; - Respostas dos exercícios de homework e atividades comlementares. -Acesso administrativo de seu curso com financeiro, notas e faltas.

Screenshots

COTEMIG Mobile4 screens
My Rock4 screens

Verdict

The call

The clearest difference is review sentiment: COTEMIG Mobile at 100% against My Rock's 50%. COTEMIG Mobile also leads on rating (5.0 vs 4.5). My Rock's advantage is ratings volume (15 vs 2). 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

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

COTEMIG Mobile holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: My Rock has 15 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of COTEMIG Mobile's written reviews are positive against 50% of My Rock's.

UpkeepUpdate frequency

COTEMIG Mobile ships an update every 3 weeks, My Rock every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
COTEMIG Mobile versus My Rock: the parameters behind the verdict, then further details
ParameterCOTEMIG MobileMy Rock
PriceFreeFree
Rating5.0 (2 ratings) — better4.5 (15 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings215 — better
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size27 MB81 MB
Age rating4+4+
DeveloperFaculdade e Colégio COTEMIGRockfeller Brasil Editora e Treinamento Ltda

Customer experience

COTEMIG Mobile

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

My Rock

All ratings13 ratings
Positive84.6%
Neutral0.0%
Negative15.4%
Written reviews24 reviews
Positive50.0%
Neutral8.3%
Negative41.7%

In-app purchases

None

COTEMIG Mobile

No in-app purchases

None

My Rock

No in-app purchases

Questions

Is COTEMIG Mobile free?
COTEMIG Mobile is free to download, with no in-app purchases.
Is My Rock free?
My Rock is free to download, with no in-app purchases.
Which has better reviews, COTEMIG Mobile or My Rock?
COTEMIG Mobile is rated higher. COTEMIG Mobile averages 5.0 out of 5 from 2 ratings, while My Rock averages 4.5 from 15 ratings.
Do COTEMIG Mobile or My Rock have ads?
Neither COTEMIG Mobile nor My Rock shows ads.
Which is updated more often, COTEMIG Mobile or My Rock?
COTEMIG Mobile ships an update every 3 weeks, and My Rock every 6 weeks. Most recently, COTEMIG Mobile was updated on November 1, 2026 and My Rock on November 3, 2026.

Other comparisons