Wanilog vs nihongostats
nihongostats is a community-built WaniKani stats site by sully22 that keeps everything on one light page: projection, accuracy, and an item box. Wanilog trades that minimalism for depth. Your finish date comes back as a p25-p75 range so a single slow level cannot swing it, and the extras run from readability scoring on live NHK headlines to a home-screen install that works 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 |
| Achievements / medals | Yes | No |
| Public profile page | Yes | No |
Last verified: May 2026. Competing tools evolve, so a claim may lag behind a recent release. Corrections are welcome.
nihongostats holds its own on the everyday charts; the gap opens in the coverage and device groups, where most rows are Wanilog-only.
How Wanilog goes further
A finish date with error bars
nihongostats projects a single date from your level-up history. Wanilog computes the median of your level times and wraps it in a p25-p75 band, so one rough level widens the band slightly instead of lurching the whole date by a month.
Readability on today's headlines
A kanji count is abstract until you point it at text. Wanilog pulls today's NHK Easy and NHK News headlines, marks the kanji you have taken to Guru, and puts a readability percentage next to each one. The Can I read this? tool runs the same check on anything you paste in.
Lives on your home screen
Add Wanilog to your home screen on iOS, Android, or desktop and it launches full-screen, with your last-synced data there even without a connection. The layout is phone-first throughout - no horizontal scroll, no truncated tables.
Aim at a level and a date
Set a target level (1-60) and a target date; the home, projection, and coverage pages then show whether your current pace gets you there. The Joyo and JLPT views forecast when each grade or level completes at that pace.
Achievements and share cards
Wanilog ships small payoffs alongside the math: an achievement set that backfills against your existing history, and a PNG share card that summarises your year. 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’s NHK headlines, or your dashboard on your phone’s 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’s?
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.
Run it on your own account
The demo shows the layout on sample data. Your own WaniKani API key fills it with your history in about a minute.