Moji - Learn Japanese & Kanji

Moji - Learn Japanese & Kanji

A profitable organically grown subscription-based iPhone Japanese learning app with no costs except Apple Proceeds and a differentiated Lock Screen learning experience. The product is mature, polished, and designed for recurring daily engagement, with clear expansion potential across content, localization, and lifecycle marketing.

Last 30 days revenue
$8,639

Tracked since 7/16/2026

MRR
$3,299

572 active subscriptions

Founder
Kai KKai K
Founded

Revenue verified withRevenueCatRevenueCat. Tracked since Jul 16, 2026.Last updated: Aug 15, 2026, 09:11 AM

Startup insights
Value proposition

Turns the dozens of times learners check their phones each day into passive kanji exposure, then reinforces recall with personalized reviews. It fits into existing habits instead of demanding another long study session.

Problem solved

Japanese learners often recognize kanji during study but forget them between sessions. Traditional flashcards require deliberate app opens and make it difficult to sustain frequent, contextual exposure.

Audience

Japanese learners and JLPT candidates (N5-N1) seeking a low-friction study habit

B2C~25,000 users

Pricing

Paid iOS subscription. One plan unlocks the full catalog, reviews, widgets, and practice tools.

Team size

1 person

Funding

Bootstrapped

App rating
4.3/5

22 ratings onApp Store

Tech stack

Additional info

Native iOS product with offline learning support, verified subscription analytics, all 2,136 Joyo kanji, and configurable Lock Screen and Home Screen widgets.

Message from the founder
Kai K

"Looking to focus on university and other responsibilities."

Kai K

Founder of Moji - Learn Japanese & Kanji

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