Comparison
Wanilog vs nihongostats: a respectful successor
nihongostats is a community-built WaniKani stats site by sully22. If you have been using it, you already know what good stats look like. Wanilog keeps the projection, accuracy, and item-box surfaces you rely on, then adds a confidence band on your finish date, reading coverage on real Japanese text, goal tracking, and a phone-first PWA that opens instantly even offline.
What nihongostats got right
- A serious item box. Filterable, browsable, level-scoped. nihongostats made it easy to inspect specific radicals, kanji, and vocab without loading the WaniKani app itself.
- Per-level accuracy charts. One of the first community tools to surface accuracy as a first-class chart rather than an aggregate number, which made it possible to see where on the journey reviews actually get harder.
- A clear, no-nonsense layout. The dashboard puts the chart you came for first and skips the marketing furniture. If you want numbers, it gives you numbers.
Side-by-side feature matrix
| Feature | Wanilog | nihongostats |
|---|---|---|
| Setup and hosting | ||
| Hosted, no install | Yes | Yes |
| Self-host option | No | No |
| Open source (MIT) | No | No |
| Demo mode (no API key) | Yes | No |
| Stats and analytics | ||
| SRS stage distribution | Yes | Yes |
| Review and lesson forecast | Yes | Partial |
| Workload forecast (lessons-per-day slider) | Yes | No |
| Peak review day surfaced | Yes | No |
| Per-level accuracy chart | Yes | Yes |
| Leech list with severity | Yes | Partial |
| Leech trainer (multiple algorithms) | Yes | No |
| Confusion pairs / visually similar items | Yes | No |
| Burn velocity (week / month) | Yes | No |
| Critical-kanji-to-level-up panel | Yes | Yes |
| Coverage and forecasting | ||
| Level 60 finish-date projection | Yes | Yes |
| Statistical projection with confidence interval | Yes | No |
| Goal level (1-60) and goal date | Yes | No |
| JLPT N5-N1 coverage with drill-down | Yes | Partial |
| Joyo coverage (grades 1-9) | Yes | No |
| Frequency-list coverage | Yes | No |
| Reading coverage on live NHK headlines | Yes | No |
| "Can I read this?" arbitrary text tool | Yes | No |
| Manual known-kanji input | Yes | No |
| UX and device support | ||
| Installable PWA | Yes | No |
| Offline shell | Yes | No |
| Phone-first layout | Yes | No |
| Dark mode | Yes | Partial |
| Color palettes (4) | Yes | No |
| Cinematic level 1-60 replay | Yes | No |
| Share-card export (PNG) | Yes | No |
| Achievements / medals | Yes | No |
| Public profile page | Yes | No |
Verdict
32 features comparedIf nihongostats is your WaniKani stats home, you will recognise the basics on Wanilog instantly: same projection, same per-level history, same accuracy charts. Wanilog adds 25 more on top: a projection confidence band, reading coverage on live NHK news, goal tracking, an installable PWA, mobile-first design, the leech trainer, achievements, and the Kanji Odyssey.
How Wanilog goes further
A projection you can plan around
Most stats tools project from your past level durations with a single number. Wanilog does that too, then layers a p25-p75 confidence band on top. A single slow week (a holiday, an illness) no longer shifts your finish date by a month. You see a range you can plan around instead of a brittle point estimate that goes stale by Tuesday.
Reading coverage on actual Japanese
JLPT and Joyo lists tell you which kanji you have learned; they don鈥檛 tell you whether you can read anything. Wanilog pulls NHK Easy and NHK News headlines fresh, highlights every kanji you have taken to Guru, and shows a readability percentage next to each. Paste any Japanese text into Can I read this? and get the same score back instantly.
Installable, offline, built for your phone
Wanilog installs to your home screen on iOS, Android, and desktop. The Service Worker keeps your last-synced data available without a connection, so the dashboard opens just as fast on the train as it does at your desk. Every page was laid out for a phone first - no horizontal scroll, no truncated tables.
Goals, not just projections
Pick a target level (1-60) and a target date. Wanilog shows an on-track or behind banner across the home, projection, and coverage pages, so you know where you stand at a glance instead of doing the math in your head every week. The Joyo and JLPT pages also forecast when your current pace finishes each grade or level.
Achievements, share cards, and the Kanji Odyssey
Wanilog ships small payoffs alongside the math: a 52-medal achievement set that backfills against your existing history, a PNG share card that summarises your year, and a cinematic level 1-to-current replay with chiptune audio. The kind of touches that turn a stats site into something you open for its own sake.
When nihongostats might still be the right pick
- You only need projection and accuracy, and you prefer a single-page dashboard that loads fast and gets out of the way.
- You want a stripped-back tool with no extras - no PWA, no achievements, no share cards, no goal tracking. Just the chart.
If you ever want to see your finish date as a range, your readability on today鈥檚 NHK headlines, or your dashboard on your phone鈥檚 lock screen, Wanilog is one paste of an API key away.
FAQ
Is nihongostats still working in 2026?
Yes. nihongostats.com is still online and continues to serve projection, accuracy, and item-box views for WaniKani users.
Will my nihongostats projection match Wanilog鈥檚?
Usually close, but Wanilog reports a range. nihongostats projects from your level-up history; Wanilog uses the median plus a p25-p75 confidence band. On steady users the two numbers stay in step; on users with one or two slow levels Wanilog's range is more stable than a single best-guess date.
Does Wanilog have an iOS or Android app?
Wanilog is a PWA. On iOS Safari tap Share then Add to Home Screen; on Android Chrome use the install prompt. The home-screen icon launches a full-screen app with offline support.
Does Wanilog have an item box like nihongostats?
Yes. The Items page lets you search every radical, kanji, and vocab on your account, filter by SRS stage or level, and group by status. Coverage drill-downs (JLPT, Joyo, frequency) hand off into the same item view when you tap a chip.
Can I see a per-hour review heatmap?
WaniKani deprecated the per-review endpoint a few years ago and the API now returns an empty array there. Wanilog falls back to per-subject review statistics for accuracy and counts, and surfaces a workload forecast that graphs the next 60 days of expected reviews based on your SRS state.
See your stats with the lights on
Open the demo for a feel of it, then paste your WaniKani API key when you are ready. Your full history syncs in under a minute.