What Letrus does

Letrus is a São Paulo-based B2B edtech company that operates an AI-powered curriculum platform for Portuguese-language reading and writing instruction, targeting students in the final years of Brazilian elementary school (anos finais do ensino fundamental, grades 6-9) and high school (ensino médio). The platform combines natural language processing with pedagogy to deliver immediate AI-generated feedback (devolutivas imediatas) on student essays, competency-based scoring aligned with Brazil's BNCC national curriculum framework, automatic detection and zero-scoring of plagiarism, off-topic, insufficient-text, and wrong-genre submissions, plus ENEM and vestibular exam preparation tracks. The product is delivered through three role-specific portals: a Student Area for writing practice, a Teacher Area with real-time class performance dashboards and engagement metrics, and a Manager Area for network-wide governance, pedagogical advisory, and reporting.\n\nRevenue is generated primarily through multi-year subscription contracts with state and municipal education secretariats, where Letrus is adopted as public policy across entire school networks, supplemented by annual B2B subscriptions with private K-12 schools. Distribution is via direct enterprise sales to government and private school buyers, with pricing quote-based on network size, school count, and contract length. The platform is deployed across 5,900+ public and private schools in all regions of Brazil, with public policy adoption in three states (Mato Grosso, Goiás, and Espírito Santo); the Espírito Santo deployment is credited with moving the state from 11th to 1st place nationally in ENEM writing scores, validated by independent impact evaluations conducted by MIT and FGV.\n\nThe company was founded in 2014 and has raised approximately R$36 million (~$7.4 million USD) in a December 2023 Series A led by Crescera Capital with Owl Ventures, Altitude, Fundação Lemann, and VélezReyez+, following an earlier 2019 round from Positive Ventures. Strategic partnerships include USAID and the Government of Ceará for a 40,000-student impact study, and the platform has been named by UNESCO as the best educational technology in the world. Day-to-day leadership rests with CEO and cofounder Thiago Rached and founder Luis Junqueira.

Name

Letrus

Legal name

Letrus

Website

https://letrus.com.br

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

101–250 employees

Short description

Letrus is a São Paulo-based B2B edtech that provides an AI-powered Portuguese reading and writing curriculum platform to Brazilian public education networks and private K-12 schools, serving 5,900+ schools and 1+ million students.

Ownership category

akta.pro rank

Product category

K-12 Education Technology (Literacy & Writing Platform)

NAICS

Educational Services (611), Exam Preparation and Tutoring (611691)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Language Assessment, Placement Testing & Proficiency Certification Tools (EDAFAOAH)

akta.pro secondary industry

AT for Reading, Writing & Learning (Literacy/Executive Function) Tools & Training (EDAKAIAC)

Keywords

• Ai writing curriculum
• Literacy assessment platform
• K12 education technology
• Competency-based grading
• Enem exam preparation

Headquarters

HQ city

São Paulo

HQ country

Brazil

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. B2B Licensing to Education Networks: Letrus licenses its AI-powered curriculum program to public and private school networks on a per-network or per-student basis. Revenue is generated through annual or multi-year contracts with state and municipal education secretariats and private school groups.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Letrus provides an AI-powered curricular program for developing reading and writing skills in upper elementary (anos finais do ensino fundamental, grades 6–9) and high school (ensino médio, grades 10–12) students in Brazil. The platform delivers immediate AI-driven feedback on student writing, competency-based grading aligned with the BNCC national curriculum, ENEM and vestibular exam preparation tracks, and real-time dashboards for teachers and education network managers. It is licensed to public and private school networks across Brazil and is deployed as public policy in three Brazilian states.

Product overview

Letrus is the first Curricular Program in Brazil that combines artificial intelligence with pedagogy to develop reading and writing skills in upper elementary and high school students. The offering is a unified multi-stakeholder platform comprising three distinct web portals: the Student Area (student-facing learning and writing practice interface), the Teacher Area (educator dashboard for real-time monitoring and feedback management), and the Manager Area (administrative and governance portal for educational network oversight). All three modules share a common AI-powered writing evaluation engine that delivers immediate feedback, competency-based grading, and personalized learning pathways.

Differentiator

Problem solved

Functional benefit

Products and services

• Letrus Student Area (Área do Aluno) Student-facing web portal providing AI-powered immediate feedback (devolutivas imediatas) on student writing, competency-based grades and comments, transversal evaluation criteria across text genres, updated repertoire of themes aligned with ENEM and vestibular exams, automatic zero scoring for plagiarism, insufficient text, topic deviation, or wrong genre, and personalized learning paths (Trilhas) covering ENEM and diverse text genres. Designed for upper elementary and high school students in Brazilian schools.
• Letrus Teacher Area (Área do Professor) Teacher-facing dashboard delivering real-time activity monitoring, class performance reports, BNCC-aligned content, per-class and per-student engagement levels, competency-based outcome tracking, class and individual averages, identification of student improvement opportunities, and autonomy for teachers to supplement AI-generated feedback with personalized notes. Designed for teachers in public and private Brazilian schools.
• Letrus Manager Area (Área Letrus) Administrative and governance portal for education network managers providing class performance reports, pedagogical advisory for implementation and engagement, learning evolution data, governance over the evaluation process, and network-wide monitoring panels with performance and engagement metrics. Designed for directors and administrators of state, municipal, and private school networks.

Quantifiable outcome

• Espírito Santo rose from 11th to 1st place nationally in ENEM writing scores after full Letrus implementation across the state network
• +3 more outcomes

Named customers7 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature5 records

Partnerships

Four partnerships are on record, tiered core.

• MITcoreStrategic or Co-development PartnerConducted an independent impact evaluation of the Letrus program. MIT's evaluation validated the effectiveness of Letrus's AI-powered writing curriculum in improving student outcomes.
• FGV (Fundação Getulio Vargas)coreStrategic or Co-development PartnerConducted an independent impact evaluation of the Letrus program alongside MIT, validating the platform's effectiveness in improving reading and writing skills.
• USAIDcoreStrategic or Co-development PartnerUSAID is financing a 40,000-student study in partnership with the Government of Ceará to evaluate the impact of Letrus's AI on improving student writing skills.
• Government of CearácoreStrategic or Co-development PartnerPartnered with Letrus and USAID to conduct a large-scale 40,000-student impact study on AI-powered writing improvement. Represents a strategic government relationship for evidence generation and policy adoption potential.

Scale indicators9 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Geekie: Brazilian EdTech platform offering adaptive learning content and AI-driven study tools to public and private K-12 networks, the closest domestic direct competitor to Letrus in AI-powered school curricula.
• Leia.ai: Brazilian AI-driven reading and literacy platform for K-12 students; competes head-on with Letrus in the Portuguese-language literacy/writing development space.
• Quill.org: Nonprofit providing free AI-supported writing and grammar instruction for K-12 students; directly comparable in product functionality (immediate feedback, competency-based writing practice) though operating in English and US schools.
• NoRedInk: US-based AI-powered writing instruction platform serving K-12 schools; comparable product functionality (adaptive writing practice, immediate feedback, teacher dashboards) targeted at the same K-12 writing-instruction use case.
• Newsela: US-based literacy platform offering leveled reading content and writing tools for K-12; comparable in delivering adaptive literacy content, formative assessment, and teacher dashboards to school networks.

Others

• Grammarly: AI-powered general-purpose writing assistant; not an EdTech, but a potential substitute/adjacent tool whose consumer and enterprise writing-feedback capabilities could pressure differentiation and pricing in the student writing-feedback market.
• Passei Direto: Brazilian student study and vestibular-prep platform with shared study materials; adjacent ecosystem participant serving similar K-12 and pre-university students but focused on peer-shared content rather than AI-driven writing instruction.

Regional players

• Veduca: Brazilian online education platform offering K-12 and higher-education content; regional competitor with overlapping Brazilian-school customer base but a different primary product (video courses) versus Letrus's AI writing evaluation engine.

Broad incumbents

• Me Salva!: Larger Brazilian EdTech offering tutoring, test prep, and on-demand video lessons for K-12 and vestibular students; broader product portfolio with overlapping ENEM-prep positioning to Letrus.
• Khan Academy (Brazil): Global free educational platform with a Brazilian Portuguese localized presence offering literacy and writing instruction; overlapping K-12 writing/literacy use case but operates as a free, broad incumbent rather than a paid B2B platform.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds4 records

Investors8 records

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 Letrus