Review Mistakes now reviews your actual mistakes. Get a question wrong and it joins a personal review deck, returning the next day, then 3 days, a week, a fortnight, a month — until you have it down. Miss it again and it goes back to the front of the queue. Fairer questions, finished. Students had worked out that the longest answer was usually the right one. That's now fixed across all 2,850 questions, not just part of the bank, and thousands of throwaway wrong answers have been rewritten as genuine misconceptions. Also: 39 duplicated questions removed, and XP is no longer lost if you quit a quiz part-way through.

The correct answer used to be the longest option, which meant a quiz could be beaten without reading it. We have rebuilt 750 questions so every option is the same length and every wrong answer is a real misconception, so you learn something even when you get one wrong. More topics are being reworked the same way. New: thermal physics, SHM, capacitance, astrophysics, solubility equilibria, transition metals, gene technology, plant physiology, and a full level on experimental design in each subject.

Three senior subjects — Biology III, Chemistry III and Physics III — 10 levels each, 300 new questions. Built for the step up to senior science: these levels ask you to calculate, not just recall. Titrations, Hardy-Weinberg, projectile motion, Kc and enzyme kinetics. Select any combination of levels and print them as a single worksheet, each level with its own section and a full answer key at the end. Now 2,800 questions across 255 levels — still free, still no ads.

200 new questions and printable worksheets. Turn any level into a worksheet you can print. Ten questions with answer lines, plus a full answer key with explanations — ideal for homework, revision, and screen-free study. Tap "Print to PDF" on the levels screen. 200 NEW QUESTIONS - Physics II — now 30 levels. Electrostatics, magnetism, electromagnetic induction, motors and generators, AC, transformers and mains electricity. - Chemistry II — now 30 levels. Atomic structure and periodic trends, group chemistry, water and solutions, metal extraction, fuels and sustainable chemistry. - Biology II — now 30 levels. Cells and the cell cycle, enzymes, digestion and circulation, ecosystems and nutrient cycles, classification and conservation. - Space & Universe — now 35 levels. Birth of the solar system, planetary geology, seasons and sky cycles, impacts and planetary defence, the origin of the elements. That's 2,500 questions across 225 levels — still completely free, no ads.

Chemistry II, Biology II & Physics II each get 5 new levels (21-25) — 250 questions apiece, covering topics like biochemistry, plant biology, and electric circuits. Space & Universe grows to 30 levels (300 questions), adding relativity, binary star systems, and cosmic rays. A Star Science now covers 205 levels and 2,200+ questions across all 9 topics. Thanks for studying with us! Happy Learning

Space & Universe expanded to 25 levels, adding rocket science & propulsion, the outer solar system & Kuiper Belt, how we measure the universe, space weather, and the frontiers of modern astronomy. Every level is now a consistent 10 questions, so progress feels even from your first quiz to your last. Discover more free apps from A Star Learner right from the app. Thanks for using Science Explorer! Happy Learning

• Introduced a brand-new Space & Universe topic. • Explore the Solar System, Earth, Moon, and Sun, including eclipses, tides, and seasons. • Learn about stars, stellar life cycles, galaxies, black holes, and the supernovae. • Discover gravity, orbits, cosmology, and the history of space exploration. • Performance improvements and bug fixes for a smoother learning experience. Thank you for your continued support. Enjoy learning!

- 1,850+ questions, now including How, Why, Where & When types for deeper learning - Daily Study Streak — build a consecutive-day study habit - Choose your difficulty: Beginner, Intermediate, or Advanced - New celebrations: level-up sparkles, confetti on 3-star scores, and instant XP pops

- New: Continue Learning card on the home screen — jump straight back into your last topic and level - New: Timed Challenge, Endless Practice, and Mistakes Review practice modes Thanks for your support.

Year 9-10 expanded to 20 levels per topic! NEW CONTENT: - Chemistry II, Biology II, Physics II now have 20 levels each (up from 10) - 1,750+ total questions across 110 levels - Year 9-10 covers everything from bonding & moles to quantum physics and CRISPR IMPROVED QUIZ EXPERIENCE: - Correct answers now auto-advance — no tapping needed - Wrong answers still show detailed explanations and a Next button NEW FEATURES: - Forgot Password — reset your password directly from the login screen - User display name now shows correctly after login BUG FIXES: - Fixed onboarding redirect on app reinstall — returning users go straight to the home screen - Improved cloud sync reliability

Massive content update! Question bank expanded from 950 to 1,600+ questions. - Chemistry: 220+ questions (doubled from original) - Biology: 200+ questions across all 10 levels - Physics: 200+ questions covering forces to quantum - Earth Science: 200+ questions from rocks to climate - Scientific Method: 200+ questions on experiments & data - Chemistry II: 200+ questions (bonding to organic) - Biology II: 200+ questions (DNA to disease) - Physics II: 200+ questions (waves to cosmology) Every level now draws from 20 questions — more variety every time you play. Also includes user profile improvements and bug fixes.