STUDIYUMStudy smarter.
Not just faster.
Private, offline, step-by-step learning powered by on-device AI.
1 · Snap or type the question
Study packs & mock exams
Download a pack. Sit a real paper. See exactly what to fix.
Packs are bundled with the app for GCSE, A-Level, IB and the digital SAT, so a mock exam works with no signal at all.
GCSE Maths
Offline12 topics · 96 practice questions · 32 exam questions
Paper 1 (non-calculator) and Paper 2 command words built in
A-Level Biology
Offline16 topics · 84 practice questions · 40 exam questions
Papers 1–3, including extended-response marking points
GCSE Chemistry
Offline12 topics · 65 practice questions · 24 exam questions
Paper 1 and Paper 2 with required-practical questions
GCSE English
Offline12 topics · 65 practice questions · 20 exam questions
Reading and writing papers with model paragraphs
SAT Math
Offline9 concepts · 54 practice questions · 18 exam questions
Two adaptive modules, 35 minutes each, with mark schemes
SAT Reading & Writing
Offline7 concepts · 42 practice questions · 14 exam questions
Two adaptive modules, 32 minutes each, with mark schemes
- 1.Download the pack
Every unit, worked example and question is stored on your iPhone.
- 2.Start a timed paper
Real paper length, real timer, real command words.
- 3.Answer exam questions
Written answers, not just multiple choice.
- 4.Get instant marking
Marked against the answer scheme, question by question.
- 5.Review your mistakes
See the marking points you missed and why.
- 6.Generate flashcards
Weak marking points become spaced-repetition cards.
- 7.Retake and watch readiness climb
Your readiness score and weak topics update after every attempt.
Packs stored on device
Pick the paper, see command words
Timed mode, written answers
Marked, question by question
Tutor chat
It teaches the method — it doesn't just hand you the answer.
Chat breaks the question down, explains where you lost marks, writes the model answer against the marking points, then sets practice variations and slots them into your revision plan.
I don't understand this A-Level Biology enzyme question: “Explain how a competitive inhibitor reduces enzyme activity. (4 marks)”
“Explain” wants cause and effect, not a description. Four marks means four linked points. Start with the shape of the inhibitor — what does it look like compared with the substrate?
It's a similar shape to the substrate?
Exactly. Here's the answer built from the marking points:
- The inhibitor has a shape complementary to the active site, similar to the substrate.
- It binds to the active site, forming an enzyme-inhibitor complex.
- The substrate can no longer bind, so fewer enzyme-substrate complexes form and the rate falls.
- Increasing substrate concentration outcompetes the inhibitor, so the rate recovers.
Three variations to try now, so it sticks:
- Explain how a non-competitive inhibitor reduces enzyme activity. (4)
- Describe how activity changes above the optimum temperature. (3)
- Explain why an enzyme only catalyses one reaction. (3)
Step-by-step method
Momentum
Finishing the pack should feel good.
XP, streaks, daily quests and a spin wheel exist for one reason: they get students back for the next session, which is what actually moves a grade.
XP, level and streak
XP and levels
Every solved question, quiz and marked paper adds XP toward the next level.
Streaks
One session a day keeps the streak — the fastest way to make revision a habit.
Daily quests & missions
Missions come from your weak topics and your exam dates, not a random list.
Spin wheel
Finish the day's plan and spin for coins to spend in the shop.
Privacy
Your work stays yours.
Studiyum is built to be useful with the internet switched off — and nothing about your studying is sold, shared or tracked.
- On-device reading and marking
Photos, questions and your working are processed and stored on this iPhone.
- Full offline mode
Downloaded packs, lessons, practice and mock exams all run in airplane mode.
- No account needed to start
Snap a question and get an explanation before you sign in to anything.
- No ads, no trackers
No advertising SDKs and no third-party analytics following you around.
Offline mode enabled
Your private AI study assistant.
Snap a question, learn the method, sit the paper, watch your readiness climb.
Marked in seconds