Conjugaid - Japanese Verbs
JLPT verb conjugation drill
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
A verb and a form on screen; you write it out on the hiragana keyboard. 1,442 verbs from N5 to N1, fifteen forms, all generated from the rules. No account.
Conjugaid drills Japanese verb conjugation. A verb and a form appear on screen, say the polite past, the te form or the causative, and you write it out on a hiragana keyboard built into the app. No Japanese keyboard needed, and nothing to set up.
1,442 verbs from JLPT N5 to N1, fifteen forms each, 21,630 forms in all. No account and no sign-up. Practice works offline, on a plane too.
WHAT YOU PRACTISE
Fifteen forms
Eight basic ones: polite present, polite negative, polite past, polite past negative, the te form, plain negative, plain past and plain past negative. Seven advanced ones: potential, passive, causative, volitional, polite volitional, imperative and conditional.
Five JLPT levels
112 verbs at N5, 204 at N4, 233 at N3, 383 at N2 and 510 at N1. Practise one level on its own or combine several.
All three verb classes
905 godan, 468 ichidan and 69 irregular verbs. Switch a class off and the lesson leaves it out, so you can spend a round on godan endings alone.
You build the lesson
Pick the forms you want, the JLPT levels, the verb classes and how many verbs a lesson runs. Nothing is chosen for you.
HOW YOU ANSWER
You type the form yourself on the hiragana keyboard in the app: no multiple choice, and no switching input methods. Every answer shows what you wrote next to the correct form, so a wrong okurigana is visible instead of just wrong.
WHAT STICKS
Every verb and every form carries its own state: new, missed, learning, or solid after three correct answers in a row. The lesson setup shows a bar under each of the fifteen forms, so you can see which ones are still shaky before you pick them, instead of guessing.
THE FORMS ARE GENERATED, NOT TYPED
Every one of the 21,630 forms is produced from the conjugation rules at build time rather than kept in a hand-written table. The two genuine lexical exceptions, ある becoming ない and the imperative of くれる, are written out as exceptions. A table that size, maintained by hand, drifts; this one cannot.
NINE LANGUAGES
The interface speaks English, German, Korean, Vietnamese, Chinese (Simplified and Traditional), Indonesian, Thai and Malay. The meanings of 137 core verbs from N5 and N4 are written in all nine; the other verbs show an English dictionary gloss.
WHAT IS FREE
JLPT N5 with 112 verbs and the eight basic forms, with no time limit, no ads and no account. One purchase adds the 1,330 verbs from N4 to N1 and the seven advanced forms. One time, not a subscription, and Family Sharing is included.
If you bought Conjugaid before version 2.0, you already have everything. Nothing to buy again.
PRIVACY
No account, no ads. Your progress stays on your device. To see how the app is used, Conjugaid sends anonymous usage statistics to PostHog in the EU: app installs and launches, practice rounds started, the purchase screen and purchases, and feedback if you choose to send it. Nothing that identifies you, no tracking across apps, no session recording. The details are in the privacy policy linked on this page.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New in Settings: Sources and licences names where the verb data comes from (OpenJLPT and JMdict), the typeface and the analytics component, each with a link to its licence. Also new there: an optional, anonymous feedback form.
From this version on, the app sends anonymous usage statistics, so it becomes visible which levels and forms people practise and where the app falls short. Your progress stays on your device; the privacy policy lists exactly what is sent.
The developer, Timothy Krechel, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Timothy Krechel
- Size
- 19.7 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 8 more
- English, German, Indonesian, Korean, Malay, Simplified Chinese, Thai, Traditional Chinese, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Course $4.99
- Copyright
- © 2026 Timothy Krechel
