Solid approach
I finally found this app that teaches Japanese grammar from the get-go, which makes much more sense to me.

This app focuses on understanding Japanese grammar to comprehend spoken and written language. It provides structured lessons and phrase breakdowns to build a strong foundation for learners.
1.2.1
April 11, 2026
Updated the app description
Yearly
$99.99
Lifetime Access
Lifetime Access
Japanese Grammar Rules employs a grammar-first approach, focusing on structured lessons and phrase breakdowns to build comprehension. It emphasizes understanding the underlying logic of the language rather than rote memorization.
The app's structured lessons are designed to provide a clear path from beginner to advanced levels. While specific progress tracking features are not detailed, the 67 progressive lessons allow users to gauge their advancement through the curriculum.
The provided information does not mention any certifications offered by Japanese Grammar Rules. The app aims to prepare users for reading real Japanese content and potentially the JLPT N5.
Japanese Grammar Rules is available for free. It does offer in-app purchases, which may provide additional content or features.
Japanese Grammar Rules has an age rating of 4+, making it suitable for a wide range of users. The content focuses on language learning and grammar.
The latest version of Japanese Grammar Rules is 1.2.1, and it was last updated on April 11, 2026. This indicates a relatively active development cycle.
Japanese Grammar Rules is supported on both iPhone and iPad devices, offering a consistent learning experience across Apple's mobile platforms.
Based on user feedback, the app is highly praised, holding a 5.0-star rating. Users appreciate its grammar-first approach, structured lessons, and focus on comprehension over memorization, as highlighted by the developer's own experience.