Comparison

N4 vs Alfredo Backer

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

Head to head
About

N4

Master JLPT N4 grammar with this app. It organizes sentence patterns with clear explanations in Chinese and provides practice questions. Easily mark difficult words for review to improve your exam performance.

Highlights
  • JLPT N4 grammar organization
  • Detailed sentence pattern explanations
  • Chinese language explanations
  • Word marking for review
  • Over 300 practice questions
Features
Read full description

1. The grammatical explanations are aligned with the new Japanese Language Proficiency Test standards, including various sentence patterns, and fully comply with the new test guidelines. Contains over 300 grammar practice questions. 2. Allows learners to easily master the material in their spare time. 3. Compiles all sentence patterns required for the JLPT N4 reading section, organized in a simple and easy‑to‑understand way, with detailed explanations of each pattern. No professional grammar terminology beyond the learning scope is used. The app can be comfortably operated with one hand, making learning more efficient. 4. Includes detailed explanations. Through repeated practice with various question types, learners can achieve complete mastery. Whenever they encounter difficulties, they can always review the explanations to fully grasp the meaning and usage of each grammar pattern. 5. When encountering difficult or hard‑to‑memorize vocabulary, users can mark words with three different types of symbols. By tapping on any symbol‑marked word, they can repeatedly reinforce their practice. 6. In addition to providing Chinese translations for the example sentences within the grammar explanations, the app also allows users to check explanations anytime they encounter something they don't understand. This effectively helps learners master key grammar points and sentence structures, strengthening their overall grasp of grammar patterns. 7. Supports iPhone 4 and above, as well as all iPad models.

About

Alfredo Backer

Features
Read full description

Este é o aplicativo do Externato Alfredo Backer Desenvolvido para apresentar aos alunos, pais e responsáveis diversas funcionalidades, tais como: • As avaliações e faltas do ano ou semestre atual e passados, com envio de notificações e push quando as avaliações forem liberadas ou alteradas pela Instituição ou pelo professor. • Consulta financeira das parcelas atuais e vencidas, com a possibilidade de cópia da linha digitável para pagamento do boleto no aplicativo do banco de sua preferência. • Consulta do horário, sala e professor das disciplinas matriculadas, com possibilidade de adicionar lembrete do dia da aula. Envio de notificação caso tenha alteração de horário e sala. • Consulta Pedagógica com a possibilidade de filtrar por período da ocorrência. Envio de notificação no caso de nova informação pedagógica (ocorrências). • Consulta de Eventos com a possibilidade de adicionar lembretes de eventos futuros.

Screenshots

N44 screens
Alfredo Backer4 screens

Verdict

The call

The clearest difference is price: Alfredo Backer at Free against N4's $9.99. Alfredo Backer also leads on iOS requirement (16.0 vs 26.0). On update cadence, ads, in-app purchases and device support 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

Alfredo Backer is free to download; N4 costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

N4 ships an update every 6 months, Alfredo Backer every 8 months. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

Scorecard2 real differences · 6 level
N4 versus Alfredo Backer: the parameters behind the verdict, then further details
ParameterN4Alfredo Backer
Price$9.99Free — better
Positive reviews0.0% of reviews
Update frequencyEvery 6 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.0 — better
Further details — not scored
Size19 MB55 MB
Age rating4+4+
DeveloperYamase & Touwa Japanese InsitituteExternato Alfredo Backer Ltda

In-app purchases

None

N4

No in-app purchases

None

Alfredo Backer

No in-app purchases

Questions

Is N4 free?
N4 costs $9.99, with no in-app purchases.
Is Alfredo Backer free?
Alfredo Backer is free to download, with no in-app purchases.
Do N4 or Alfredo Backer have ads?
Neither N4 nor Alfredo Backer shows ads.
Which is updated more often, N4 or Alfredo Backer?
N4 ships an update every 6 months, and Alfredo Backer every 8 months. Most recently, N4 was updated on September 20, 2026 and Alfredo Backer on September 18, 2026.

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