# Kuzushi: Casual Japanese — Anime, drama and slang

> Anime, drama and slang (iPhone/iPad app by Jakub Dwojak.)

- Source: https://appshunter.io/ios/app/kuzushi-casual-japanese/id6805788146 (this page in markdown: same URL + `.md`)
- Developer: [Jakub Dwojak](https://appshunter.io/developer/6801993670)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 3 MB
- Languages: American English, Polish
- Released: 2026-09-01
- Data updated: 2026-09-15
- User reviews in markdown: https://appshunter.io/ios/app/kuzushi-casual-japanese/id6805788146/reviews.md

## What is Kuzushi?

Textbooks teach 〜ている and 〜てしまう. People say 〜てる and 〜ちゃった.

That gap is what Kuzushi trains. Not grammar you have never met – grammar you already learned, in the shape it actually arrives in when someone talks to you.

WHAT IT DRILLS

Every pattern is scored separately for five things, because they are five different skills:

• Recognize – you hear 食べちゃった, you map it back to 食べてしまった
• Shorten – you know the full form, you produce the spoken one
• Meaning – what the pattern actually does to the sentence
• Register – the same situation, two correct forms, and who you are talking to decides
• Take apart – several changes in one sentence, undone step by step

Being able to recognize a shortened form is not the same as being able to produce it. The app counts them apart and asks about whichever is behind.

FIVE LEVELS, NOT JLPT

Shortenings do not belong to exam levels – you hear them in the first minute of any conversation. The levels here go from one change per sentence to several at once.

CASUAL IS NOT RUDE

Register questions show a situation and two forms that are both correct Japanese. Sometimes the right answer is the polite one. The app teaches when, not just how.

HOW IT WORKS

A pattern you have never met is explained before it is asked about – what changes, why, and one sentence showing it. New material arrives at a pace you set.

NO ACCOUNT, NO NETWORK

Everything is on the device. No sign-up, no tracking, no data collected. Levels 1 and 2 are free; one purchase opens the rest, for good.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kuzushi Premium | $2.99 | one-time |



## Version history (last 5 releases)

### 1.2.1 — 2026-09-14

The polite form is no longer counted as wrong

When the question asks which fuller form a spoken one comes from, the answer is the
full form — and both 電話があった。 and 電話がありました。 are full forms of the same
sentence. Until now the second one stood among the choices as a mistake, even though
the app itself explained underneath that it was the same sentence made polite. It now
counts in full, together with a line about how it differs from the model answer. This
affects 130 exercises out of 203. The other direction — "how does this sound in
conversation" — still counts the polite form as wrong, because register is exactly
what that question is about.

The results screen says what was asked

After answering you could see what you picked and what was correct, but not the
question itself. The prompt and the sentence you were shown now stand above the
answers, with the same highlight on the part being asked about. They are there after
every answer, including a correct one.

Readings above the model answer

The sentence on the Answer card showed bare kanji even with furigana set to always.
It now carries readings, like the rest of the Japanese in the app.

### 1.2.0 — 2026-09-12

Answers wait for a Check

Tapping an answer used to submit it straight away, so a slipped thumb was recorded as
a mistake — and with four tiles a slip looks exactly like not knowing. A tap now only
selects: the tile is marked, and the answer goes to be graded when you press Check at the
bottom, from the same bar that already served typing and take-apart. Tapping the same tile
again clears the choice, and while nothing is selected the button says what it is waiting
for.

Sentence translations in every exercise

The hidden translation button stood in one exercise out of five — take-apart — although the
material carries a translation for every sentence in the catalog. It now stands in four of
them, still hidden behind a tap so the sentence keeps its job: the Japanese first, the check
after it. In the meaning exercise it stays unavailable rather than hidden, because there the
translation is the answer.

Reminders stop going quiet after one evening

One reminder ever stood in the queue, and nothing put the next one there until the app was
opened again — so the evening nudge reached only the people who were coming back anyway.
A week of them is queued now, and the queue is recalculated when the app starts, when it
goes to the background, when you leave a session and when the hour or the daily goal
changes. The number on the icon follows the day that is still open, so it goes dark the
moment the day is finished.

Take-apart tells the screen reader the truth

VoiceOver was told that a tile from the pool goes to the end of the answer. It does not: it
goes into the first empty slot, which is the hole left by a tile taken out — and that is the
whole point of the numbered slots, because it makes a mistake in the middle two taps to fix
instead of a rebuild. Anyone reading the slot numbers could see it; anyone listening was
told something that stopped being true the moment a tile was removed.

### 1.1.5 — 2026-09-09

Your Japanese lists all ten apps

The section ended at six rows, so four apps of the family had no line of their own – even
on a phone that has them installed. Keigo, Onomatope, Kifuku and Shindan now stand at the
end of the list, in the order they were released. That order is the same in every app of
the family, and each new one goes on the end rather than beside the topic it belongs to:
the rows you already know keep the places you know them from.

Four new sister apps under More Japanese

Politeness, mimetics, pitch accent and a level test – four cards at the end of the
section, each with one sentence saying what that app is for. Every one of them opens its
own App Store page rather than dropping you into a search box, because the identifiers are
read from App Store Connect and then checked against the store itself before the release
goes out.

Progress from the four newest apps finally shows

Their cards had been sitting in the shared container the whole time. This app was not
reading them: it looked for progress only from the apps it knew by name, and those four
were not on that list – so nothing was being turned away, nothing was being asked for.
A phone with all ten installed looked exactly like a phone with six. Their rows now appear
like any other, with the percentage, the weakest spot and the daily-goal mark.

### 1.1.4 — 2026-09-09

Questions stop coming back the same

Within one session a question never repeated, but nothing remembered it afterwards – so
the next session could open with exactly what the last one closed with. What was
remembered was the sentence, not the question asked about it, and almost every pattern
here has only two sentences. The app now keeps the last few questions asked about each
pattern and reaches for a fresh one first. When a pattern has nothing else left, it would
rather repeat than give you an empty session.

Build the order by tapping, and fix a mistake in the middle

Take-apart used to hand you all the steps at once and ask you to drag them around, and the
only grip was a narrow strip at the right edge. Now the steps sit as tiles and you tap them
into numbered slots. Taking one out leaves its slot empty instead of closing the gap, so a
mistake in the middle is two taps to fix – not a rebuild of everything after it. The
sentence you are taking apart stays pinned at the top, and the instruction now says what
the order is: from the fullest form to the shortest.

See what the sentence means while you order it

Take-apart is the one exercise where you assemble a sentence whose meaning you may not
know – the other four hand you the sentence whole and ask about its shape. A Show
translation button now stands above the tiles. It gives nothing away: the answer here is
the order of the steps, not the meaning.

A wrong order shows what to move, and where

The check screen used to glue every step into one line joined by arrows – unreadable once
a sentence has five or six of them. Each step now has its own row, with the position it
belongs in beside the ones you need to move, and the correct order numbered underneath.
What is marked is what you would have to move, not what fails to sit at its index: moving
one tile shifts everything after it, and marking by index would paint a single mistake as
a total one.

Check waits until the answer is complete

The order a take-apart question opened with was never the right one, so pressing Check
straight away recorded a certain miss – without a single move, and it counted against your
streak and your weak spots. The answer now starts empty.

The progress bar fills up, the report button spans the column

On the last question the counter said 7 / 7 while the bar stopped one step short. The
Report a problem button on the content-failure screen stood as a narrow pill against the
left edge, unlike every other prominent button in the app.

### 1.1.3 — 2026-09-07

The question marks the construction it asks about

The instruction "What fuller form did this come from?" never said which part of the
sentence it meant — you had to find it by comparing the four answers. The fragment
now stands marked in the question itself. Its range is computed against all the
choices at once, so it gives nothing away about which one is right, and it falls in
the same place as the marking on the tiles. Where pointing at the fragment would be
the answer — typing from the keyboard, and questions about meaning — the question is
left alone.

The feedback stops saying "nobody says that" about forms people do say

An answer shortened too far used to be told "That one shortens further than the
language actually goes. Nobody says it." For twelve of those choices this was untrue:
先に予約しとけば is something people say every day. What happened there was not
overshooting — a whole clause had gone missing, or a piece of the sentence had been
swapped for another. A feedback sentence that lies teaches worse than silence, so
those twelve now carry a label and a sentence naming what actually changed: it is
ordinary Japanese, just not the shortening we asked about.

A correctly shortened polite form is accepted, not rejected

An answer that did the shortening right and stayed polite used to be simply wrong.
That punished the thing the exercise tests for something it never asked about. Such
an answer is now accepted, and the screen says what differs: the shortening is right,
the register is not the one we asked for.

The answer choices differ by form, not by a swapped word

A few wrong answers changed a word in the sentence — tomorrow into yesterday, one
verb into another — instead of changing the ending. The answer could then be picked
without knowing the form we are asking about, so the question measured something
other than what it promised. Corrected where the difference in wording was not the
point of the question.

Practice these again gives you fresh questions, not the same screens

The round after your mistakes came back with the same items, answer tiles and all —
and then what you remember is that the answer was the second tile, not the
transformation. Questions from the round you are repeating no longer come back in the
repeat. If a pattern has run out of material, the round would rather repeat than not
happen at all.

The session no longer ends earlier than the button promised

A pattern that had nothing left to ask kept coming back into the draw and ate the
attempt budget — so a session could end short of the number on the button, and
"practice this pattern" paused on an empty screen first. The number on the button and
the length of the session are now the same number, in every scope and at every length.

Answer tiles of one height, full-width buttons, and a question counter

An answer wrapping onto two lines made its tile twice as tall as its neighbour, even
though size means nothing here — and a bigger tile reads as a more important one. The
"Check" and "Continue" buttons stood as narrow pills in the middle of a wide bar.
Above the question there is now a counter as well: which question you are on, and how
many there are.

## More apps by Jakub Dwojak

- [Kaname: Japanese Grammar](https://appshunter.io/ios/app/kaname-japanese-grammar/id6801993668)
- [Katsuyokei: Conjugation](https://appshunter.io/ios/app/katsuyokei-conjugation/id6802813564)
- [Joshi: Japanese Particles](https://appshunter.io/ios/app/joshi-japanese-particles/id6803144744)
- [Kazoekata: Japanese Counters](https://appshunter.io/ios/app/kazoekata-japanese-counters/id6803676309)
- [Bunmyaku: Japanese Reading](https://appshunter.io/ios/app/bunmyaku-japanese-reading/id6804188062)

All apps by Jakub Dwojak: https://appshunter.io/developer/6801993670

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-15.*