PrepMyJapanese vs WaniKani — Kanji SRS or JLPT Mock Exams?

Quick answer: WaniKani is better at teaching kanji through a radical → character → vocabulary SRS pipeline. PrepMyJapanese is better at telling you whether that knowledge survives a timed JLPT mock with approximate scaled scores and sectional minimums. WaniKani alone will not simulate listening papers or pass/fail floors; PrepMyJapanese alone is not a full kanji curriculum.

Different products, same exam

Kanji volume is real — roughly 100 / 300 / 650 / 1,000 / 2,000 estimates across N5→N1 (counts guide). WaniKani attacks that mountain with structure and mnemonics.

The JLPT still fails you for other reasons: unfinished reading sections, once-only listening audio, and sectional floors even when your total looks safe (scoring). That is PrepMyJapanese’s lane.

Comparison table

Deep page: PrepMyJapanese vs WaniKani.

Where PrepMyJapanese is better

1. Test-day rehearsal — Clock, sections, and pass/fail style feedback.
2. Sectional honesty — Kanji strength will not save a listening minimum miss.
3. Level-agnostic mock credits — Useful when you jump from N4 plans to N3.
4. Broader JLPT surface — Practice hubs, scoring explainers, courses, and ebooks around the mock.
5. Decision clarity — After a mock, you know whether to study reading stamina or keep grinding kanji reviews.

Where WaniKani is better

1. Curriculum design — Ordered unlocks beat random Anki downloads for many learners.
2. Mnemonic culture — Faster early kanji acquisition.
3. Long runway — Years of structured character learning.
4. Focus — No distraction from unrelated product surfaces.

If your bottleneck is “I cannot read the passage because every adjective is unknown kanji,” WaniKani (or a serious Anki deck) should get calendar priority.

The stack that works

Daily: WaniKani reviews first (reviews before new unlocks).

Weekly: One timed PrepMyJapanese section drill on your weakest area.

Every 3–4 weeks: A fuller practice test. If reading fails because of kanji, return weight to WaniKani. If reading fails because of time, practice skimming and pacing — more kanji alone will not fix the clock.

Final two weeks: Freeze new WaniKani unlocks if review load is high; protect sleep and full mocks.

What WaniKani cannot see

WaniKani will tell you whether a kanji is “guru” or “burned.” It will not tell you:

• whether you can finish the N3 reading section before time is called,
• whether once-only audio still parses when you are tired,
• whether your listening score would trip the sectional floor even if vocabulary feels strong.

Those are PrepMyJapanese questions. Running more WaniKani reviews the week before the exam feels productive; a timed mock with sectional feedback is the braver check.

Cost and focus tradeoffs

WaniKani is a subscription optimized for years of kanji study. PrepMyJapanese mock packs are one-time credits optimized for exam cycles. Paying for both is normal for serious N3–N2 candidates — you are buying two different capabilities. Cutting WaniKani the month before the exam only makes sense if reviews are already light and kanji is not your failure mode.

If money forces a choice two months out: keep the tool that matches your last mock’s weakest section. Kanji-driven reading fails → keep WaniKani. Timing/listening fails → keep mocks.

FAQ

Is WaniKani enough for JLPT N3? It can cover a large share of the kanji problem. It does not replace listening practice or timed reading papers.

Should I quit WaniKani when I buy PrepMyJapanese? Almost never. Keep SRS for retention; buy mocks for diagnosis.

Does PrepMyJapanese replace WaniKani? No. Different jobs. See also SRS vocabulary strategy if you prefer Anki-style decks instead.

What about WaniKani vs Anki? WaniKani wins structured curriculum; Anki wins price and flexibility. Either can feed PrepMyJapanese mocks. Pick one retention system and stop switching every month.

Official sources checked

• JLPT composition of test sections and items
• JLPT scoring sections, pass/fail, and score report

Keep studying

• All comparisons
• PrepMyJapanese vs WaniKani (page)
• Best JLPT apps compared
• How many kanji per JLPT level
• JLPT practice tests
• Pricing