Braincup vs Sacred Knowledge Vault

Train your brain with 43 fun mini games that challenge your memory, focus, logic and math skills. Braincup gives you quick, sharp workouts that fit into any break. No ads, no tracking, and fully open source. MATH Mental Calculation: follow the expressions, using each result as the base for the next. Chain Calculation: solve complex formulas step by step. Sherlock Calculation: reach the goal using only the given numbers and operators. Fraction Calculation: solve the fractions. Value Comparison: pick the expression with the highest value. Bubble Sum: add the numbers on the floating bubbles. Quick Sum: numbers flash one at a time, add them up. Missing Operators: find the operators that make the equation true. Matchstick Riddles: move matchsticks to fix broken equations. MEMORY Visual Memory: memorize the shapes, then name the hidden one. Ghost Grid: watch the tiles light up, then tap them back in order. Digit Memory: memorize digits, solve a problem, then recall them. Simon Says: each round adds a pad, tap the whole sequence back. Spot the New: tap the animal you have not seen before. N-Back: watch the shapes flash by, then tap the one asked for. Orbit Tracker: track the highlighted balls as they move. FOCUS Anomaly Puzzle: find the figure that stands out. Color Confusion: tap the cells where word and font color match. Colored Shapes: add up the points from the correct statements. Flash Crowd: tap the side that flashed more dots. Schulte Table: tap the numbers in order as fast as you can. Flags: identify the country by its flag. Mental Flex: the pair at the top says which trait counts, shape or color. LOGIC Pattern Sequence: work out the rule in each row and complete the matrix. Mental Rotations: decide if the second block is the first one turned, or mirrored. Path Finder: follow the arrows to the destination. Mini Sudoku and Sudoku: classic number placement, small grid or full size. Mini Chess, Solo Chess and Chess: endgame puzzles, capture chains, or a full game against the CPU or a friend. Lights Out: turn off every light. Sliding Puzzle: slide the tiles back into order. Shikaku: split the grid into rectangles, one number each. Nurikabe: paint the sea around numbered islands. Cat Queens: one cat per row, column and zone, never touching. Knot: connect the colored dots without crossing. Tower of Hanoi: move the stack, never a larger disk on a smaller one. Peg Solitaire: jump pegs until one remains. Prism Clear: swap tiles to clear lines and empty the board. Trio: find three cards that share a shape, a count or a fill. Wordle: guess the hidden five-letter word in six tries. Bulls & Cows: crack the secret 4-digit number. Every exercise has medals to chase, and achievements track how far you have come. No tracking. Open source.

An AI knowledge tool with an exclusive role-playing system featuring two separate knowledge base modes. All conversation data is stored locally to fully protect your privacy.  Six Exclusive Roles： You must pick an identity on your first launch: Angel, Demon, Sage, Knight, Fox and Hermit. Each role comes with unique salutations, conversation tones and placeholder texts for the input box. You may switch roles anytime in Settings. The AI opens every reply with role-specific greetings for an immersive Q&A experience.  Dual Knowledge Base Modes — Balance of Convenience & Privacy： 1. Sacred Library — Official Built-in Public Knowledge Base It includes ten complete categories: full-stack development, general learning, quotes & proverbs, design thinking, workplace communication, history & literature, finance & psychology, space science and more. Pre-built prompt templates named Wisdom Sparks are available. You can read daily offline quotes without API configuration — ready to use right after installation.  2. Personal Codex — Custom Private Model Knowledge Base (Max Privacy Protection) Create your private knowledge vault by entering your LLM API address, secret key and model name. All conversations are only sent to the third-party interface you configure. The app will not collect, upload or retain your Q&A content on its own. Full chat history is saved locally in the on-device FMDB database with no cloud uploads. You retain full ownership of all your data.  Full Suite of Knowledge Management Tools： - Sacred Archives: Conversations are auto-saved locally, paginated and grouped by knowledge base; only accessible on your device. - Sacred Favorites: Long-press any dialogue to save it locally for later review. - Wisdom Sparks: Built-in prompt templates to start knowledge inquiries with one tap.  Privacy & Security Guarantees： 1. Local Data Storage: All chats, favorites and history remain in your local database with no automatic cloud uploads. 2. Isolated Private Mode: Messages in your private vault are only relayed to your self-provided model endpoint. We never access your API keys or conversation data. 3. Encrypted API Key Storage: Your custom model keys are securely stored in Keychain with no plaintext caching. 4. Full Data Control: Clear all local chat cache and device data in one tap via Settings.  Target Users： Programmers, designers, educators, copywriters, students, casual knowledge seekers, and users who run private LLMs and prioritize data privacy. We keep updating built-in knowledge bases and role interaction experiences continuously.