Ludus
Ludus is a 2025-founded language learning platform offering iOS and web apps with FSRS spaced repetition and pre-loaded dictionaries, serving students and language teachers in the U.S. and Canada via a freemium student tier and a B2B classroom subscription.
- Company typePrivate
- Founded-
- Headquarters—
- Headcount1–10
- GTM typeB2C
- OfferingSoftware
What Ludus does
Ludus is a language learning platform founded in 2025 by Otto, a student at Phillips Exeter Academy, and operated under the Ludus Language brand. The company targets individual students and language teachers in the U.S. and Canadian markets through an iOS mobile app and a web application, monetizing via a freemium student subscription ($5/month annual or $8/month monthly) and a B2B classroom tier priced at $100-$400 per year plus custom unlimited plans for teachers and schools.
The product combines pre-loaded language-specific dictionaries covering French, Spanish, Italian, and German as core languages, with additional dictionaries available for Latin, Chinese, Japanese, and Korean. Review scheduling is driven by the FSRS (Free Spaced Repetition Scheduler) spaced-repetition algorithm, and user engagement is reinforced through gamification mechanics including creature companions. The technical stack uses React and React Native for the web experience, native Swift for iOS, and Firebase as the backend infrastructure, with content marketing and product-led growth as the primary go-to-market motions.
Ludus is a bootstrapped Delaware entity with 1-10 employees and is founder-owned. The company received its first external capital from the Almaworks accelerator in September 2025 and joined the Columbia Startup Lab on October 4, 2025, signaling an early-stage orientation toward New York startup ecosystem resources. There are no disclosed patents, certifications, acquisitions, or leadership changes beyond the founding team.
Ludus firmographics
Firmographics- Name
- Ludus
- Legal name
- Ludus Language
- Website
- https://ludusapp.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Ludus is a 2025-founded language learning platform offering iOS and web apps with FSRS spaced repetition and pre-loaded dictionaries, serving students and language teachers in the U.S. and Canada via a freemium student tier and a B2B classroom subscription.
- Ownership category
- akta.pro rank
Ludus business model
Business model- GTM type
- B2C
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations
Revenue model
- Student Subscriptions: Freemium model for students with a free tier offering limited core features. Premium plans unlock unlimited content, advanced analytics, and exclusive creature evolutions.
- Teacher/Classroom Plans: Annual subscription plans for teachers with tiered student capacity (20, 50, 200 students) and full feature access. Custom unlimited plans available for larger classrooms.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier with limited access |
| Subscription | Annual | Annual student subscription |
| Subscription | Monthly | Monthly student subscription |
| Subscription | Annual | Starter classroom plan |
| Subscription | Annual | Plus classroom plan |
| Subscription | Annual | Mega classroom plan |
| Subscription | Multi-year contract | Custom unlimited classroom plan |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels1 record
Ludus product offering
Product offeringCore offering
Ludus provides a gamified language learning platform delivered through an iOS mobile app and a browser-based web app. The product pre-loads dictionaries for languages including French, Spanish, Italian, German, Latin, Chinese, Japanese, and Korean, allowing users to save words directly into a daily spaced-repetition study deck without manually creating flashcards. Multiple practice modes (Spaced Repetition, Showdown, Gravity, Character Strokes, Flashcards, Quiz) adapt to each learner's retention using the FSRS algorithm, and the platform is offered to individual students and to teachers via classroom subscription plans.
Product overview
Ludus is a language learning platform comprising two primary products: Ludus Mobile (iOS app) and Ludus Web (browser application). The platform offers a suite of gamified learning features including Spaced Repetition, Showdown (live classroom quiz), Gravity (asteroid game), Character Strokes (writing practice), Flashcards, and Quiz. These products work together as a unified system where vocabulary saved from teacher-assigned dictionaries automatically becomes part of daily study decks, utilizing FSRS-backed spaced repetition algorithms. Currently supports French, Spanish, Italian, and German, with additional language content for Latin, Chinese (simplified and traditional), Japanese, and Korean through built-in dictionaries.
Differentiator
Problem solved
Functional benefit
Products and services
- Ludus Mobile iOS mobile application that provides language fluency on the go through gamified vocabulary flashcards and spaced repetition practice across French, Spanish, Italian, German, and other supported languages.
- Ludus Web Browser-based web application for learning languages on desktop, offering the same flashcard and game-based vocabulary practice as the mobile app, including Spaced Repetition, Showdown, Gravity, Character Strokes, Flashcards, and Quiz modes.
- Teacher / Classroom Plans Annual subscription plans for language teachers providing classroom management, vocabulary assignment, and student progress tracking. Tiered by student capacity from 20 to 200 students with custom unlimited plans for large deployments.
- Student Premium Subscription Paid student subscription tier unlocking unlimited lists and words and access to all languages beyond the free tier's limited lists, words, activities, and single-language access.
Companies that use Ludus
Customer profileSegments2 records
Ideal customer profiles2 records
Ludus technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability2 records
Feature4 records
Ludus partnerships and signals
Strategic signalRecent moves5 records
Expansion highlights4 records
Ludus competitors and assessment
Company assessmentDirect peers
- Gimkit: Gimkit is a live classroom quiz game platform used by K-12 teachers, with student-vs-student competitive modes. Ludus's "Showdown" feature (live classroom translation race) directly overlaps with Gimkit's competitive classroom gameplay and teacher distribution motion.
- Quizlet: Quizlet is the dominant digital flashcard and study tool platform for students, offering user-generated and pre-made flashcards with multiple study modes. It directly competes with Ludus in vocabulary practice, study workflows, and teacher adoption in K-12 and higher education.
- Brainscape: Brainscape is a flashcard and spaced repetition platform marketed to both students and professionals, with a focus on confidence-rated repetition. It shares Ludus's adaptive SRS positioning and B2C/B2B dual monetization model.
- Drops: Drops is a visual vocabulary-first language learning app with gamified micro-lessons. It targets the same vocabulary-building use case as Ludus but emphasizes passive recognition over Ludus's active production and FSRS-driven repetition.
- Memrise: Memrise is a consumer language-learning app focused on vocabulary acquisition through spaced repetition and video clips of native speakers. It competes directly with Ludus for vocabulary-focused learners but lacks the teacher/classroom workflow layer.
- Anki: Anki is the canonical open-source spaced repetition flashcard platform, widely used by language learners and medical students. It competes directly on core SRS methodology, though it lacks Ludus's pre-loaded language dictionaries and gamification layer.
Emerging players
- RemNote: RemNote combines note-taking with built-in spaced repetition flashcards, targeting students who want integrated study workflows. It overlaps with Ludus on SRS-driven flashcard practice but serves a broader study and note-taking audience.
- Quizalize: Quizalize is a teacher-facing formative assessment platform with gamified quiz modes and classroom management. It overlaps with Ludus's classroom management features and teacher distribution approach, though focused on assessment rather than vocabulary.
Broad incumbents
- Duolingo: Duolingo is the largest consumer language-learning platform, offering gamified lessons across dozens of languages. While broader in scope than Ludus, it is the primary incumbent Ludus differentiates against on active-recall depth and teacher-assigned vocabulary workflows.
- Kahoot!: Kahoot! is a leading classroom engagement and quiz platform used widely in K-12 and corporate training. Its live game-based quiz format overlaps with Ludus's Showdown and Gravity modes, and it competes for the same teacher wallet and classroom screen time.
Market position
Strengths1 record
Weaknesses5 records
Competitive moat3 records
Key risks6 records
Key highlights7 records
Customer concentration
Ludus social profiles
Digital presenceLudus financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ludus leadership team
Management profileNumber of profiles
Profiles1 record
Ludus funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ludus M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Ludus
What does Ludus do?
Ludus provides a gamified language learning platform delivered through an iOS mobile app and a browser-based web app. The product pre-loads dictionaries for languages including French, Spanish, Italian, German, Latin, Chinese, Japanese, and Korean, allowing users to save words directly into a daily spaced-repetition study deck without manually creating flashcards. Multiple practice modes (Spaced Repetition, Showdown, Gravity, Character Strokes, Flashcards, Quiz) adapt to each learner's retention using the FSRS algorithm, and the platform is offered to individual students and to teachers via classroom subscription plans.
Is Ludus a public or private company?
Ludus is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Ludus founded?
Ludus was founded in -1. It employs 1 to 10 people.
How does Ludus make money?
Two revenue lines are on record. Student Subscriptions are the primary driver. The others are teacher/Classroom Plans.
Who are Ludus's main competitors?
Direct peers on record are Gimkit, Quizlet, Brainscape, Drops, Memrise and Anki. Emerging players are RemNote and Quizalize. Broad incumbents are Duolingo and Kahoot!.
Does Ludus have an API?
No public API is recorded for Ludus.