• New "Nomenclature exercises" tool: given the structure (SMILES, formula, functional groups and stereocentres), you write the IUPAC name. Five levels of your choice, from branched alkanes up to rings and stereochemistry. Checking accepts spelling variants and, when you get it wrong, tells you where: parent chain, numbering, suffix, missing substituent, stereo descriptors. The score is per session, with no penalties. • Condensed formulas: in the organic chemistry tools you can now write CH3CH2OH, (CH3)2CHOH or CH3CH=CH2 instead of SMILES; errors explain where and how to fix them. Exercises, reactions and functional groups show the condensed formula next to the SMILES. • Functional groups: new "Alkyl substituents" section — methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl, tert-butyl and longer chains — with the atom they are attached to. The search analyses what you type (SMILES or condensed formula) right away before asking PubChem; after an online search with no result, just change the text to search again, and names with special characters now reach PubChem correctly. • Unified review: quizzes and flashcards now share the same spaced-repetition algorithm (SM-2) and the same schedule; a question is rescheduled at most once a day, so repeating the same quiz no longer inflates intervals and reviewing wrong answers no longer wipes your progress. Statistics now count flashcards too and distinguish "learning" questions from those "due today". • Long documents: topics and glossary are now generated for large documents too; if part of the processing fails due to an AI service error, the work already done is kept and the document shows how many parts are missing. Quizzes generated from your notes draw on the whole document, not just its beginning, and the portions sent to the AI no longer stop mid-word or mid-formula. • Importing several materials: one final summary says how many are ready and, for the rest, why not; if your key is rejected or the quota runs out, the queue stops and the remaining materials stay in the library to be processed later. Deleting a material now clearly says its questions and review progress go with it. • Question bank: answers marked in the PDF are looked for before the summary, which now shows real numbers (how many answers were detected and how many are left to the AI). Questions at the end of a page are read with the correct page, so their marked answer is detected too. • Gemini: the app picks the newest model available to your key on its own (recently created keys no longer accept 2.5 models) and, if a model is withdrawn or the service is overloaded, moves on to the next model by itself (never when the problem is your key or quota). The API key no longer appears in request URLs. • On first launch the app asks you to read and accept the terms of use (AI-generated content, chemistry tools, API keys, data); the acceptance date is shown in Settings → Legal information. • IUPAC name: the molecule's common name is shown even when a systematic name is not available; benzene no longer opens an empty steps panel. • Calculators: when you change the acid-base pair in the buffer or the formula in concentrations, the manual value restarts from the new one instead of keeping the old one. [H⁺] concentrations and Ka/Kb constants no longer show "10·10⁻¹⁴" at the edges of the scale. • Organic reactions and product prediction: after an AI error you can retry without retyping the reagents. • SMILES: accidentally pasted line breaks are ignored, and invalid characters are reported precisely, including inside square brackets. • Periodic table: the crystal structure is now translated into English. • Various fixes and stability improvements.

• Up to 150 questions generated from your notes. Generation now works through successive sections, so it no longer stops after the first few dozen, and it shows progress as it goes. • The number of questions offered reflects the material you actually have, so the app no longer promises more than it can deliver. • New AI chat where the context is rich: under a question generated from your notes, while reading a document, and in Lab sessions. Ask for clarifications on the material you are studying. Requires a configured API key and is included in the Pro plan. • Smarter search: searching "ammino acidi" also finds "amminoacidi", and results containing the exact phrase come first. • Correct molecular structures: some molecules were shown with another compound's structure. • Reworked concept maps: all branches are visible, zoom and panning behave correctly, and the shared image keeps the links between concepts. • Question-bank entries that were unreadable on import stay out of quizzes, and you can now restore them whenever you want. • Various fixes and stability improvements.

What's New in 1.1.1 In case you missed the recently added Tools: • Interactive periodic table: 118 elements with chemical, physical and structural properties, zoom and detail cards • Concentration calculator: molarity and dilutions, with molar mass from the chemical formula • pH calculator: strong and weak acids and bases, comparing the exact method with the teaching approximation • Buffer solutions: Henderson-Hasselbalch equation with validity warnings • Access them while studying from documents, quizzes and lab, with contextual help Improvements in this version: • More reliable search within course materials • Question-bank quizzes cleaned of incomplete items • Full-screen document view from the study plan • More stable quiz generation

What's New in 1.1.0 — Introducing Tools • Interactive periodic table: 118 elements with chemical, physical and structural properties, zoom and detail cards • Concentration calculator: molarity and dilutions, with molar mass computed from the chemical formula • pH calculator: strong and weak acids and bases, comparing the exact method with the textbook approximation • Buffer solutions: Henderson-Hasselbalch equation with validity warnings • Tools always at hand: open them right where you study — from documents, quizzes and lab sessions, with contextual help in every tool

Handout reordering You can now organize each course's handouts in the order you prefer. Lessons are recognized and sorted automatically on import, and you can always rearrange them by hand by dragging or with a tap. Audio navigation between handouts While listening, you can move to the previous or next handout directly from the player, without going back. It works both with PDF reading and with summaries, key points, and glossary. Stability improvements and various fixes.

Much more reliable question bank import: - More questions recognized during import, even in large files - Improved accuracy in detecting the correct answer - New guide with tips for preparing the ideal question bank Thank you for using Numas Study!

Fixed an issue that in some cases prevented completing the app's initial setup. Minor improvements to the user experience.