01
Choose what to study
Explore subjects on the map and choose an available topic, such as fractions, history or programming logic.
LEARN WITH SHORT EXERCISES
Learn many subjects. One challenge at a time.
A study app with short exercises in math, science, history and more. Practice, earn XP, unlock achievements and track your progress in each topic.
✦ The beta is growing. Content is being released gradually.
Mathematics
Science
Technology
History
YOUR PROGRESS
Every exercise is another step forward.
Choose a subjectPractice with questionsTrack your progress
HOW IT WORKS
Choose. Practice.
See your progress.
Open the map, choose an available topic and answer the questions. Check the feedback and pick up where you left off.
02
Answer and understand
Practice with exercises or take short assessments. Review the answers and explanations to learn from each attempt. Lessons are coming soon.
03
See your progress
Earn XP for taking part, unlock achievements and track your results by topic. Your progress is saved so you can continue later.
TAKE A LOOK INSIDE THE APP
See the subjects.
Explore the map.
Open an interactive demonstration and discover how areas and competencies connect.
Explore the connections.
The results in this example are fictional.
Your personal knowledge starts without assessments.
Map and list with the same actionsEvidence kept separate from XPExplained results
EXPLORE DIFFERENT SUBJECTS
Math, science
and much more.
Subjects and topics are released gradually during the beta. Those not yet available are marked “In preparation”.
Mathematics
Patterns, quantities and relationships.
- Equações do segundo grau
- Fractions
- Sistemas lineares de duas incógnitas
- Percentages
- Linear equations
- Descriptive statistics
- Plane geometry and measurement
- Probability of events
- Números inteiros e operações
- Ler e simplificar expressões
- Funções e suas representações
- Sólidos, áreas e volumes
- Pontos e retas no plano
- Interpretar tabelas e gráficos
- Amostras, vieses e inferência
- Princípios de contagem
- Variáveis aleatórias e distribuições
- Seno, cosseno e tangente
- Ângulos no círculo unitário
- Aproximação e continuidade
- Taxas instantâneas e derivadas
- Acumulação e integrais
- Propriedades dos triângulos
- Quadriláteros e suas propriedades
- Circunferência e círculo
Natural sciences
Investigate the world using evidence.
- Evolução e seleção natural
- Genética mendeliana
- Scientific method
- Cell biology
- Ecosystems
- Chemistry of matter
- Solar System and celestial motion
- Movimento, forças e energia
History and society
Context for understanding the present.
- Brazil: First Republic
- Industrial Revolution
- Historical sources
- Ancient Greece and Rome
- Atlantic revolutions
- Sociedade e poder no Brasil colonial
- Estado e sociedade no Brasil imperial
Technology
Ideas that become solutions.
- Aprendizado de máquina: dados e avaliação
- Bancos de dados relacionais
- Programming logic
- Variables and conditionals
- Networks and internet
- Basic data structures
- Algorithms and problem solving
- Account and data security
Languages and communication
Reading, expression and different ways to communicate.
- Reading comprehension
- Textual cohesion
- Text genres
- English reading and structures
- Reading in Spanish
- Narrativa, poesia e drama
- Construir uma interpretação literária
- Sons, palavras e frases
- Variação e adequação linguística
Geography
Places, landscapes and relationships between society and nature.
- Orientation and cartography
- Climate and weather
- Population dynamics
- Landforms and Earth processes
- Topographic reading and scales
- Mapas digitais e dados espaciais
- Urbanização e redes de cidades
- Regionalizar o Brasil
- Regiões e conexões do mundo
Philosophy
Questions, arguments and reflection on the world.
- Argumentation and critical thinking
- Foundations of ethics
- Knowledge and evidence
- Justice, power and citizenship
- Propositional logic
- Analisar decisões éticas
- Conhecimento e justificação científica
- Justiça, autoridade e distribuição
- Democracia, pluralismo e cidadania
Arts and culture
Creation, expression and cultural experiences.
- Elements of visual language
- Musical foundations
- Heritage and memory
- Photography, light and composition
- Theatre and dramaturgy
- Experimentar e desenvolver uma criação
- Ouvir ritmo, melodia e timbre
- Corpo, espaço e composição em dança
- Arte, contexto e interpretação histórica
Economics and management
Choices, resources and organizations.
- Custos e ponto de equilíbrio
- Choices, scarcity and markets
- Organizations, processes and goals
- Personal finance and budgeting
- Produção, preços e emprego
- Regras, incentivos e mercados
- Planejar entregas e acompanhar riscos
- Problema, proposta de valor e viabilidade
Engineering
Design, systems and solutions under constraints.
- Design, measurements and verification
- Energy, power and systems
- Direct-current circuits
- Propriedades e seleção de materiais
- Equilíbrio, torque e mecanismos
- Fluxos, capacidade e qualidade
Psychology and behavior
Cognition, learning and behavior in context.
- Attention, memory and cognition
- Behavior, learning and context
- Social influence and intergroup relations
- Desenvolvimento ao longo da vida
- Emoções e motivação no cotidiano
- Métodos e ética em pesquisa psicológica
Education and learning
Study strategies, teaching and assessment.
- Study and self-regulation
- Assessment, feedback and evidence
- Accessible and inclusive learning
- Planejar ensino e acompanhar aprendizagem
- Currículo, escolhas e progressão
- Escolher tecnologias para aprender
Law and citizenship
Human rights, institutions and civic participation.
- Human rights and citizenship
- Institutions and the rule of law
- Participação cidadã e instituições brasileiras
- Informação e proteção nas relações de consumo
- Dados pessoais e direitos digitais
- Trabalho, direitos e proteção social
Health and well-being
Understand health information and its contexts for educational purposes.
- Health literacy
- Human body and homeostasis
- Saúde, prevenção e condições de vida
- Alimentação, nutrientes e escolhas informadas
- Movimento, sono e recuperação
- Ambiente, exposição e saúde
Environment and sustainability
Resources, environmental impacts and collective choices.
- Ciclo do carbono
- Resources and environmental impacts
- Water, watersheds and sustainable use
- Clima, mitigação e adaptação
- Biodiversidade e conservação
- Resíduos e economia circular
- Cidades acessíveis e resilientes
Communication and media
Messages, sources, journalism and information flows.
- Media and information literacy
- Journalistic verification
- Mensagem publicitária e avaliação crítica
- Imagem, som e montagem
- Comunicar serviços e interesse público
- Plataformas, algoritmos e circulação
LEARN FOR YOUR OWN REASONS
Out of curiosity.
To study. To grow.
Review a subject, explore an interest or strengthen your studies. You choose what to practice from the available topics.
General knowledge
Seeking enlightenment
Broaden your worldview and connect knowledge across subjects.
Start studyingAcademic knowledge
Strengthen my education
Build a solid foundation for your studies and explore the subjects you want to master.
Start studyingTechnical knowledge
Turn knowledge into practice
Understand concepts, develop reasoning and build practical skills.
Start studyingNot sure where to start? Explore the available subjects
STUDY AT YOUR OWN PACE
One next step.
Then another.
Explore the available topics and practice at your own pace. You can pause an assessment and come back later without losing confirmed answers.
- Adjustable weekly time
- Short assessments by topic
- Completed activities preserved
MATHEMATICS
Strengthen my foundations
Fractions → Percentages
Examples of catalog topicsTECHNOLOGY
Start programming
Logic → Variables and conditionals
Examples of catalog topicsPrefer to follow your curiosity?
You can also freely explore the competencies in the catalog.
Clarity in every result.
An assessment is a sample. Results distinguish performance, sufficient evidence and demonstrated goals. Advanced bands do not fill in earlier ones.
Your pace is part of the plan.
Pause an assessment and resume later. Study and practice without making every attempt a grade. Your history does not decline when you spend time away.
Exploration counts too.
XP recognises participation in exercises and assessments. Your exploration level records activities; goals depend on evidence.
LEARN AT YOUR OWN PACE
A plan for your journey
Your progress remains yours. Plus offers unlimited energy, with no XP or ranking advantages.
Free plan
20 energy each day, without accumulation.
- Full assessment: 2 energy
- Practice or review: 1 energy
- Forum question: 2 energy
Resuming activities, reading and replying in the forum are free.
Start for freeCognoSaga Plus
- Unlimited energy
- Custom profile photo
- Social networks on your profile
$9.00 / month · $84.00 / year
Equivalent to $7.00/month. The annual total of $84.00 is paid upfront, without monthly installments.
Automatically renewing subscription or non-renewing prepaid access, at the same base price.
In Brazil, pay in BRL using direct PTAX conversion. The date and amount are shown before payment.
The current offer is confirmed at checkout. Continuous subscriptions keep the contracted price.
New purchases are not available yet. You will not be charged.
View plans and termsBEFORE YOU SET OFF
A good question
opens paths.
What is CognoSaga?
It’s an app for studying different subjects through exercises, short assessments and game elements such as XP, levels and achievements. Choose from the available topics, practice and track your progress. The catalog grows gradually during the beta.
Do I need to set a goal to get started?
No. Create your account, verify your email and explore the map. You can choose an available topic and start without setting a goal.
Is CognoSaga free?
Yes. The free plan uses daily energy. CognoSaga Plus offers unlimited energy through an optional, explicit purchase. Creating or keeping an account does not incur charges.
Is this an intelligence test?
No. Assessments test a sample of knowledge in specific competencies. They do not measure intelligence, general ability or all your knowledge.
What does a demonstrated goal mean?
The initial rule requires ten eligible pieces of evidence from distinct families, across at least two completed sessions, with eight correct answers. The result applies to the assessed band.
Can I study without taking assessments?
You can already practise with questions and immediate feedback, without producing assessment evidence. Lessons coming soon...
Is the question bank unlimited?
No. The initial bank has ten families per band in each competency. Viewed questions cannot return as independent evidence. When items run out, the product explains the limit and offers study options.
Has the content been reviewed for public use?
Content available in the beta goes through editorial review. You can report problems with questions to the team.
How is my data handled?
In your profile, you can export your data as JSON and request deletion using your password. You have 30 days to restore your account by email; sessions are revoked immediately.
A LITTLE PRACTICE, NEW DISCOVERIES
What subject do you want
to learn today?
Choose an available topic and take the first step with exercises and explanations.
Start for freeFree beta for adults aged 18 and over.