Comparison

Idiomus vs Instituto Four

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

Head to head

Idiomus

Free

📚 Education

★ 4.9149 ratingsView app →

About

Idiomus

Learn English through book summaries that boost personal and professional growth. Access audiobooks and synchronized English texts with translations to improve reading and listening skills. Expand your knowledge in diverse fields while mastering the language.

Highlights

English book summaries
Audiobooks
Synchronized translations
Reading practice
Listening practice
Diverse subject library

Features

Read full description

Aprenda inglês com resumos de livros que aceleram seu desenvolvimento pessoal e profissional - disponíveis em audiobooks e textos em inglês com tradução. Em nosso aplicativo você terá acesso a resumos de livros nos formatos de áudios e textos em inglês com a tradução sincronizada e poderá praticar seu reading e listening no idioma inglês aprendendo sobre sobre empreendedorismo, investimentos, produtividade, inteligência emocional, negócios, vendas, psicologia, saúde, história, filosofia e muito mais. Baixe nosso aplicativo e acesse uma vasta biblioteca de textos em inglês com áudio e tradução que lhe farão aprender diversas outras habilidades além do inglês.

About

Instituto Four

Features

Read full description

Tenha acesso às aulas na palma da sua mão! Interaja com a comunidade e acompanhe seu progresso pessoal através do nosso dashboard do aluno! Sem internet? Sem problemas! Baixe as aulas para assistir offline quando preferir.

Screenshots

Idiomus4 screens

Instituto Four4 screens

Verdict

The call

Idiomus and Instituto Four 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

Idiomus ships an update every 6 weeks, Instituto Four every 2 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

ScorecardNo meaningful differences

Idiomus versus Instituto Four: the parameters behind the verdict, then further details
Parameter	Idiomus	Instituto Four
Price	Free	Free
Rating	4.9 (149 ratings) — better	—
Positive reviews	63.4% of reviews	—
Number of ratings	149 — better	—
Update frequency	Every 6 weeks — better	Every 2 months
Ads	No	No
In-app purchases	No	No
Monetization	Ad-supported	—
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	15.6 — better	16.4
Further details — not scored
Size	41 MB	79 MB
Age rating	4+	4+
Developer	felipe foiato	WAID

In-app purchases

None

Idiomus

No in-app purchases

None

Instituto Four

No in-app purchases

Questions

Is Idiomus free?

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

Is Instituto Four free?

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

Do Idiomus or Instituto Four have ads?

Neither Idiomus nor Instituto Four shows ads.

Which is updated more often, Idiomus or Instituto Four?

Idiomus ships an update every 6 weeks, and Instituto Four every 2 months. Most recently, Idiomus was updated on October 26, 2026 and Instituto Four on October 27, 2026.