Master every past question, step by step.
Snap a photo of any official exam question and get a clear, bilingual solution aligned with the national marking guide — ready as an offline PDF in seconds.
- Marking-guide aligned
- Works offline
- Pay with MoMo or Orange Money
Video guide
See how PrepTex works
A short walkthrough: solving a past question, studying from your own notes, and getting your answers marked.
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Built for Cameroon's official examinations
Verified academic standard
Engineered by a former bilingual college vice principal and affiliated with LouisTech — strictly aligned with the national syllabus.
- National exams covered
- 10+
- Average solution time
- 15s
- Fully bilingual
- EN · FR
- Daily pass from
- 500 CFA
Core revision advantages
Built for Cameroon's toughest national exams
Everything you need to master your syllabus with academic precision, low data usage, and instant access.
The academic authority edge
Generic AI gives generic answers. This engine is strictly calibrated for GCE, BAC, and HND standards. Engineered with the exact academic rigor expected by a bilingual college vice principal, every step-by-step solution aligns with national marking guides.
- (a)Correct use of the quadratic formulaM1
- (b)Discriminant evaluated: Δ = 25A1
- (c)Both roots stated: x = 3, x = ½A1 B1
Zero-data studying
Stop burning expensive internet bundles. Every solution downloads as a lightweight PDF, so you can study for hours completely offline.
Frictionless access
No app to install and no credit card. Upload your question and unlock the solution instantly with MTN MoMo or Orange Money.
Bilingual by design
Every explanation in English or French, matching Anglophone and Francophone subsystems.
PrepTex Pro Solver
Ask follow-ups, request a simpler explanation, or practise a similar question.
Past questions & theses
Browse archive-style past papers and generate MINESUP-aligned thesis outlines.
New Study mode
Study from your own notes, with a coach that tests you
Upload what your teacher gave you. PrepTex explains it simply, asks you questions, marks your answers and sets timed tests, so you walk into the exam knowing you've mastered your own syllabus.
Upload your own notes
Lecture notes, handouts or textbook pages: a PDF, a photo of handwritten notes, or a text file.
A coach that teaches from them
Explanations use your notes' own definitions and examples, one idea at a time, in English or French.
Questions after every lesson
Each question is labelled with its topic, with an answer box right under it. Your answers are marked straight away.
Timed practice tests
5 to 30 minutes, written from your material. Your phone rings when the time is up, even with the app closed.
Saved to your cloud space
Pick up any study session on any device. 100 MB free, 250 MB with a pass.
Understanding photosynthesis
Your notes define photosynthesis as the way green plants make glucose from carbon dioxide and water using light energy, inside the chloroplasts…
Check your understanding
1DefinitionWhere in the cell does photosynthesis happen?
2Limiting factorsName two factors that limit its rate.
Timed practice test · 10 questions from your notes
⏰ Time's up!
Tap to see your score and the answers.
Study tools
More than a solver: past papers, theses and internship reports
From your first GCE paper to your final-year rapport de stage, PrepTex supports every stage of your studies.
Past Questions Generator
Pick your exam, subject, year and paper to pull up past questions with official-style marking schemes, then send any question to PrepTex Pro Solver for a full walkthrough.
x = 2t + sin 2t, y = 1 − cos 2t
(a) Find dy/dx in terms of t [5]
(b) Find the stationary points [4]
- GCE, BAC, Probatoire, BEPC, HND & BTS
- Marking scheme with M / A / B marks
- Download as a printable PDF paper
Included with any study pass
Browse past questionsThesis Generator
Turn your topic into a structured thesis framework — problem statement, objectives, methodology and a five-chapter outline aligned with MINESUP standards.
- 1General introduction & problem statement
- 2Literature review
- 3Methodology
- 4Results & discussion
- 5Conclusion & recommendations
- Bachelor, Master's & PhD proposals
- Chapter-by-chapter outline
- English or French
From 10,000 CFA per thesis (Bachelor, Master's, PhD)
Plan your thesisInternship Report Writing
Draft your rapport de stage with the structure examiners expect: host-company presentation, activities carried out, analysis and recommendations.
Rapport de stage
Host enterprise
CAMTEL, Douala
Duration
3 months
Chapter 3 · Internship activities & situational analysis
- HND / BTS internship report format
- Host enterprise & institution details
- Supervisor requirements built in
5,000 CFA per HND / BTS report · includes AI solver questions
Write your internship reportHow it works
Snap. Unlock. Master.
Three simple steps, designed for students who need fast, reliable revision support on any phone.
- 1
Snap a photo of your question paper
Use your phone camera or upload a clear photo from your desktop.
- 2
Unlock with Mobile Money
Instant payment via MTN MoMo or Orange Money. No card needed.
- 3
Download your offline PDF
Read and study solutions without consuming data.
Flexible student pricing
Affordable for every Cameroonian student
Choose the pass that fits your study schedule. Pay in seconds with MTN Mobile Money or Orange Money.
Daily Sprint
Quick revision24-hour access for urgent homework, quiz prep, or tonight's revision.
- 83,333 AI tokens for the solver & past questions
- Past Questions Generator with marking schemes
- Covers GCE, BAC, and HND formats
- Instant offline PDF downloads
- Valid for 24 continuous hours
Perfect for last-minute cramming before an exam.
Weekly Crunch
Most popularUnlimited access and offline PDFs throughout your revision week.
- 125,000 AI tokens for the solver & past questions
- Past Questions Generator with marking schemes
- Covers GCE, BAC, and HND formats
- No internet needed after download
- Full 7-day access across all subjects
Cheaper than a single Yaoundé or Douala taxi ride.
Monthly Master
Best value · save 50%30-day exam mastery for serious GCE, BAC, and Probatoire candidates.
- 625,000 AI tokens for the solver & past questions
- Past Questions Generator with marking schemes
- All subjects & national marking guides
- Priority PDF generation
- 30 days of offline studying anywhere
Best value for candidates preparing for national exam success.
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