What Skritter does

Skritter, operated by privately-held California corporation Inkren Inc., is a niche language-learning platform focused on Chinese and Japanese character writing. The core product, available via web application and native iOS and Android apps, combines real-time stroke-level handwriting recognition with a spaced repetition system (SRS) and a vocabulary corpus of over 1.1 million Chinese and Japanese entries. Learners draw characters on a canvas or touchscreen and receive immediate grading on stroke accuracy and order, with a four-level grading scheme (Forgot, So-so, Got it, Too Easy) feeding a personalized review schedule; the company claims 95% retention and sub-one-minute learning per character. The platform supports Simplified and Traditional Chinese, Japanese Kanji, Hiragana, and Katakana, and offers hundreds of pre-made textbook lists plus user-created custom decks, in-app video courses, and a free Practice Pad for unstructured drilling.

The business model is primarily consumer self-serve subscription, with tiered pricing at $14.99 per month, $59.99 for six months, $99.99 annually, and $179.99 for two years on iOS, all gated by a 7-day free trial and processed through the website or Apple/Google app stores. A secondary Skritter Classroom product serves educational institutions, allowing teachers to create classrooms, assign vocabulary, and track student progress, with school-specific pricing. Distribution combines direct-to-consumer website sales, app-store channels, an affiliate program offering 15% lifetime commissions, and a broad partner ecosystem including deep account-linked integrations with Du Chinese, The Chairman's Bao, Maayot, and LingQ, plus lighter connections to MDBG, Pleco, Zhongwen, and ChinesePod. The company is small (1–10 employees), bootstrapped with only two disclosed early-stage rounds totaling roughly $50K (2008 and 2010), and serves individual language learners globally across consumer and institutional segments.

Name

Skritter

Legal name

Inkren Inc.

Website

https://skritter.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

1–10 employees

Short description

Skritter is a bootstrapped SaaS platform that uses stroke-level handwriting recognition and spaced repetition to help individual learners and educational institutions master Chinese and Japanese character writing across web and mobile.

Ownership category

akta.pro rank

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Subscription Plans: Recurring subscription revenue generated through tiered pricing plans (1-month, 6-month, 12-month, 2-year) with automatic renewal. Users sign up for recurring billing that continues until cancelled. The 7-day free trial converts to paid subscription unless cancelled 24 hours in advance.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Skritter is a language learning platform that teaches users to write Chinese and Japanese characters through real-time handwriting recognition and a spaced repetition system (SRS). Users draw characters in a browser or mobile app and receive immediate stroke-level grading on stroke order and accuracy, with reviews scheduled to retain roughly 95% of what they learn. The offering is delivered as a cross-device subscription product across web, iOS, and Android, with a separate Skritter Classroom product for schools and teachers.

Product overview

Skritter is a language learning platform focused on Chinese and Japanese character writing mastery. The core offering consists of the Skritter Website and Mobile Apps (iOS/Android), which provide handwriting recognition, spaced repetition flashcards, and textbook access. Supporting products include Skritter Classroom for institutional use, Skritter Video Courses for structured lessons, the Practice Pad for free-form practice, and a Library of textbook lists and user-created decks. A legacy API (v0 beta) enables personal-use integrations. The platform uses spaced repetition scheduling and real-time handwriting feedback to help users learn to write Chinese characters, Japanese Kanji, Hiragana, and Katakana. Pricing includes 1-month ($14.99), 6-month ($59.99), and annual ($99.99) subscription plans with a 7-day free trial.

Differentiator

Problem solved

Functional benefit

Products and services

• Skritter Website and Mobile Apps Cross-device language learning subscription product for individual learners of Chinese and Japanese characters, combining handwriting recognition, spaced repetition review, textbook decks, and progress tracking.
• Skritter Classroom Institutional version of Skritter that lets teachers and schools create classrooms, assign vocabulary homework, manage student accounts, and monitor student writing progress.
• Skritter Video Courses

Quantifiable outcome

• Users remember 95% of what they learn
• +1 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability3 records

Feature7 records

Partnerships

18 partnerships are on record, tiered core and minor.

• Du ChinesecoreTechnology or IntegrationOfficial integration allowing users to sync vocabulary from Du Chinese (graded reader with stories ranging from beginner to master) directly into Skritter decks. New words automatically added to custom deck. Skritter users get 10% discount with code SKRITTER10.
• The Chairman's BaocoreTechnology or IntegrationOfficial integration with comprehensive news-based graded reader offering 9,000+ articles. Words saved on TCB sync automatically to custom deck in Skritter. Skritter users get 15% discount with code SKRITTER.
• MaayotcoreTechnology or IntegrationOfficial integration with daily graded reading platform. Words clicked while reading on maayot automatically added to custom Skritter study deck. Skritter users get 50% off first monthly purchase with code SKRITTER.
• LingQcoreTechnology or IntegrationIntegration with language learning platform built around comprehensible input. Vocabulary tracked in LingQ can be exported to custom deck in Skritter for practice and review.
• YoYo ChineseminorGTM or Marketing PartnerPartner resource listed on Skritter's Partners and Resources page for Chinese learning.
• Outlier LinguisticsminorGTM or Marketing PartnerPartner resource offering Chinese character learning materials, listed on Skritter's Partners and Resources page.
• Language MasteryminorGTM or Marketing PartnerPartner resource for Mandarin and Japanese learning, listed on Skritter's Partners and Resources page.
• Mandarin CompanionminorGTM or Marketing PartnerPartner resource offering graded Chinese reading materials, listed on Skritter's Partners and Resources page.
• Hacking ChineseminorGTM or Marketing PartnerPartner resource (Olle Linge's blog) for Chinese learning strategies and tips, listed on Skritter's Partners and Resources page.
• BeeminderminorGTM or Marketing PartnerGoal tracking integration partner, listed on Skritter's Partners and Resources page.
• ItalkiminorGTM or Marketing PartnerOnline language tutoring platform partner, listed on Skritter's Partners and Resources page.
• ChinesePodminorGTM or Marketing PartnerChinese learning podcast partner listed on Skritter's Partners and Resources page.
• Flexi ClassesminorGTM or Marketing PartnerMandarin and Japanese study platform with native teachers. Skritter users save 50% on first monthly subscription with code SKRITTER50.
• LTL Language SchoolminorGTM or Marketing PartnerImmersive Chinese language school with locations across China (Beijing, Shanghai, Chengdu). LTL also offers homestay experiences. Listed on Skritter's Partners and Resources page.
• Fragrant MandarinminorGTM or Marketing PartnerChinese culture and language learning platform, listed on Skritter's Partners and Resources page.
• Mandarin MonkeyminorGTM or Marketing PartnerContent partner and Chinglish Podcast. Provides group hangouts and one-on-one lessons. Listed on Skritter's Partners and Resources page.
• NihaoCafeminorGTM or Marketing PartnerOnline Chinese learning platform from That's Mandarin language school (founded 2007, served 50,000+ students). Listed on Skritter's Partners and Resources page.
• That's MandarinminorGTM or Marketing PartnerChinese language school founded in 2005, delivering excellence in Chinese teaching for over 17 years to more than 50,000 students. Listed on Skritter's Partners and Resources page.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Busuu: Busuu is a subscription language learning platform with structured courses and community features. It competes for the same general language learner segment as Skritter but does not specialize in handwriting/character writing.
• Memrise: Memrise is a well-funded, broad language learning platform using spaced repetition and video-based vocabulary acquisition across many languages. It competes for the same self-directed learner wallet share as Skritter but at a much larger scale.
• Duolingo: Duolingo is the largest consumer language learning platform, offering Chinese and Japanese courses. It competes for general-purpose learners but lacks Skritter's handwriting/character writing depth, positioning it as a broad incumbent rather than a direct specialist competitor.

Direct peers

• LingQ: LingQ is a comprehensible-input language learning platform offering vocabulary import and SRS-style review for many languages including Chinese and Japanese. It is a Skritter integration partner and overlaps in vocabulary acquisition workflows.
• Pleco: Pleco is a leading Chinese learning app centered on dictionary, flashcards, and character study. It is one of Skritter's most direct competitors in the Chinese vocabulary/character learning space and is also a Skritter integration partner.
• Anki: Anki is an open-source spaced repetition flashcard platform widely used by language learners, including for Chinese/Japanese characters. It competes directly with Skritter's core SRS+flashcard proposition, though Skritter differentiates via built-in handwriting recognition rather than user-typed answers.
• HelloChinese: HelloChinese is a gamified mobile app for learning Mandarin that covers characters, vocabulary, and conversation. It competes with Skritter for self-directed Chinese learners, though with a broader speaking-focused curriculum rather than handwriting-first approach.
• Du Chinese: Du Chinese is a graded reader platform for Chinese learners that pushes vocabulary into Skritter via a deep integration. It serves the same Chinese learner persona, making it a directly comparable learning tool, though focused on reading rather than writing.

Emerging players

• WaniKani: WaniKani is a focused SRS platform for learning Japanese kanji and vocabulary, with a similar web-based subscription model to Skritter. It targets Japanese learners directly and competes with Skritter's Japanese offering, though without handwriting input.
• iTalki: iTalki is an online tutoring marketplace for language learners including Chinese and Japanese. It is a Skritter marketing partner but addresses speaking/conversation practice, making it a complementary rather than directly overlapping offering.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/SkritterHQ
• YouTubeyoutube.com/channel/UCjgfULWh8BVpW4kebqEr91w
• Facebookfacebook.com/Skritter-39198748555
• Instagraminstagram.com/skritterchinese/?hl=en
• LinkedInlinkedin.com/company/inkren-skritter.com-

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds2 records

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Skritter