JLPT readiness

Every study app.
One score.

JStacked pulls WaniKani, Anki, Bunpro & your textbooks into a single live readiness number — so you always know exactly what to study next.

Watch the demo ↓
Free to start · No credit card · 2 minutes to set up
DEMO
Wednesday · Jun 18おかえり, Chris
JLPT Readiness
54%
🔥
12d
Target N3138 days61% pass
Review queueOpen all
鬼
WaniKani
Kanji & vocab
23 due
A
Anki
Core 2k
40 due
文
Bunpro
Grammar SRS
11 due
合格度Progress
54%N3
Composite readiness
Trailing target by 26 pts
Grammar is weakest — clear the Bunpro backlog.
Vocab
68%
Leading
Kanji
57%
On track
Grammar
22%
Lagging
N3 coverageby source
Vocabulary68%
Kanji57%
Grammar22%
Study activity12d streak
連携アプリApps
鬼
WaniKani
Lv 23 · 23 due
● Connected
A
Anki
Core 2k · 40 due
● Connected
文
Bunpro
Grammar SRS
Offline
初級N5
Genki I
9/12 · 75%
みんなN5
みんな I
12/25 · 48%
とびらN3
Tobira
3/15 · 20%
カルN3
Quartet I
1/12 · 8%
N3 Vocabulary
1,240 known · 580 gaps
✕
✗ Gaps · 580
✓ Known · 1,240
提案ていあんproposalWK
影響えいきょうinfluence, effectAN
解決かいけつsolutionWK
傾向けいこうtendency, trendRS
背景はいけいbackgroundTB
日Home
録Progress
連Apps
Connects everything you already use
鬼WaniKani
AAnki
文Bunpro
練Renshuu
初Genki
扉Tobira
本+5 textbooks
🎯

One readiness score

A live JLPT estimate across vocab, kanji & grammar — blended from every source, not guessed.

🔍

Drill into the gaps

Tap any skill to see exactly which words, kanji and grammar you know — and which you’re missing.

🔥

One streak, all apps

Your study activity from every app in a single heatmap, streak and weekly view.

Stop guessing if you’re ready.

Connect your first app in two minutes and watch your JLPT score come to life.

積JStacked
日本語学習進捗

See your real JLPT readiness.

Connect WaniKani, Anki, BunPro, or Renshuu and see exactly which words and kanji you still need — not just streaks. One score, all your tools.

Free to start · no credit card · 2-minute setup
Your JLPT Daily
Targeting N5 · 4 connected apps
Streak
14d
Due
127
N5 ready
35%
JLPT readiness
N5
35%
N4
10%
N3
2%

How it works

使い方
1
Connect your apps
Paste your WaniKani API key, download the Anki add-on, or drop in your BunPro token. Under 2 minutes per app — no new accounts.
2
JStacked does the math
We cross-reference your reviews against official JLPT word lists, combine streaks across tools, and map your real progress N5 → N1.
3
Study smarter
See your weakest pillar, which words aren't in any app yet, and how many weeks to 80% readiness at your current pace.

The stack

連携アプリ · no switching apps — JStacked reads your existing data
W
WaniKani
Kanji & vocabulary SRS
via API key
A
Anki
Flashcard reviews & retention
via Add-on
B
BunPro
Grammar by JLPT level
via API token
R
Renshuu
Vocab & listening schedules
via API key
本
Textbooks
Genki, Tobira, Minna & more
via check-off
More integrations coming soon.

What you get

機能
§ 01
Real JLPT readiness
Vocab, kanji, and grammar mapped against official JLPT word lists — not just card counts. See what % of N5–N1 you actually know, by app.
§ 02
Combined streak
One streak across all your tools. WaniKani today counts. Anki counts too. Your real consistency, not each app's isolated view.
§ 03
Vocab gap list
See which JLPT words aren't in any of your decks yet. View all unknown words for any level, then add them where it makes sense.
§ 04
In-context practice
Practice vocab and grammar from real Japanese content — fill-in-the-blank from actual sentences, N5–N1, 700+ questions out of the box.
極
Free to start · 2-minute setup

Stop guessing. Start knowing.

Connect your first app in under 2 minutes. Cancel any time.

Get your JLPT score →