SPEEDSim vs TokenMax

Spatial Population Ecological and Epidemiological Dynamics Simulator (SPEED Sim) is a tool that enables hands-on interactive exploration of the spatial dynamics of various computational models in population ecology and epidemiology. The app also provides several cellular automaton models as an introduction to these kinds of simulations. This app has been used in numerous K-12 educational outreach venues, including: * Expanding Your Horizons workshops to stimulate interest in STEM fields among middle-school girls * 4-H workshops for middle- and high-school students * Workshop at the Maine Science Festival * Various visits to K-12 schools * An exhibit at the Maine Discovery Museum, a children's museum in Bangor, Maine The app currently includes twelve different models: - Conway's Game of Life: a classic cellular automaton that was created by mathematician John Conway in 1970. - Vants: (Langton's Virtual Ants) demonstrates how extremely complex behaviour can arise from a set of very simple rules. - Majority/Voter: models peer pressure, genetic drift or the spread of opinions and ideas. - Diffuse: physics model of particles randomly diffusing around (e.g. particles of ink in a jar of water) - Diffusion-Limited Aggregation: models a process similar to crystallization, with diffusing particles aggregating out of solution. - Cyclic Cellular Automaton: a generalized version of 'rock-paper-scissors.' - SIRS epidemiological model (Susceptible-Infectious-Recovered-Susceptible): demonstrates an infectious disease spreading through a population, where individuals have temporary immunity after recovering from the infection. - Dispersal2: a population model where individuals disperse their offspring at two local scales. - Fragmented Landscape:a population model with local and long-distance dispersal on a spatially structured heterogeneous landscape. - Competitive Species: an extension of the Fragmented Landscape model above, but with two species competing for available habitat with different strategies. - Block Disturbance: a spatial population ecology model where births occur individually, but when death occurs, entire blocks of sites go extinct simultaneously. - Vaccinated Communities epidemiological model: shows how the dynamics of an infectious disease are affected not only by the total amount of vaccination in a population, but also by the variability in vaccination levels among different communities. - Internet Worms: simulates the spread of malicious software spreading through the internet using biologically inspired dispersal strategies. The simulation models allow you to change all parameters controlling the dynamics. Images of the detailed spatial dynamics can be displayed, as well as graphs summarizing the behavior over time. Both types of images can be saved to the Photos library. New patterns can be interactively drawn in the system by simply moving your finger around on the lattice. You can also pinch-to-zoom, and then pan around using two fingers. Most of the models allow you to load images from the camera and run simulations on them. Tap the Options menu at the bottom of the Lattice screen to load images from the camera or the Photos library. For example: load the Diffuse model, turn on Walls mode in the Parameters tab, and then run the model on a photo of yourself. Note that the simulations are generally computational intensive and will run more quickly on newer iOS devices or when you select a smaller lattice size. The speed adjuster brought up from the Options menu near the bottom of the Lattice screen lets you slow down the simulation to observe the dynamics more closely. The larger screen on iPads allows for a much nicer interface, but the app is fully functional on iPhones and iPod Touches as well. This material is based upon work supported by the National Science Foundation under Grant Nos. DMS-0718786 and DMS-0746603 to David Hiebeler.

TokenMax is an AI learning lab for your iPhone, built by Vellora AI: a full computer-science curriculum, a real Python environment with auto-graded problem sets, a sandboxed terminal, and a tutor powered by a language model that runs on the phone itself. No accounts, no servers, no telemetry. LEARN AI, CS & PYTHON — 14 FULL COURSES, OFFLINE - Sidebar → Courses bundles 14 university-level open-courseware classes, readable offline, including: • 6.S191 Intro to Deep Learning — transformers, attention, RLHF, generative AI • 6.5940 TinyML & Efficient Deep Learning — quantization, pruning, the methods behind on-device models • 6.0001 + 6.0002 Intro to CS and Data Science in Python • 6.034 Artificial Intelligence, 6.864 Advanced NLP • 18.06 Linear Algebra, 18.065 Matrix Methods, 18.05 Probability & Statistics • 6.006 + 6.046 Algorithms, 6.S081 Operating Systems, 6.824 Distributed Systems - Course materials from MIT OpenCourseWare, used under CC BY-NC-SA 4.0. TokenMax is free and is not affiliated with or endorsed by MIT. Lecture videos link out to ocw.mit.edu. A REAL PYTHON LAB IN YOUR POCKET - Embedded Python 3.13 — write code and run it without leaving the app. - Auto-graded problem sets check your work line by line, with results in seconds. - Built for learning: the interpreter runs only the bundled lessons and the code you type. It never downloads or executes code from the internet, and network access inside the Python sandbox is disabled. - "Python Tutor (OCW 6.0001)" persona — a Socratic tutor that asks leading questions, runs your code through Python before commenting, and refuses to just hand you the answer. TERMINAL & SSH - A real sandboxed shell with twenty-something built-ins (ls, cd, cat, head, tail, grep, find, mkdir, mv, cp, rm, touch, …) operating only on the app's own writable directories. - SSH client in pure Swift. Save hosts in Settings, connect with password or ED25519 / RSA private keys, host-key fingerprint pinning on first connect. - Per-conversation Plan / Execute mode lets the model drive the terminal. Plan mode allows read-only commands; Execute mode requires per-command approval for anything destructive. AN AI THAT NEVER PHONES HOME - A language model ships inside the app — start chatting on first launch, even in Airplane Mode. - Streaming responses, regenerate, edit and re-roll, copy, pin, folders, in-conversation search, export to PDF / Markdown / JSON, share extension. - Sees photos, hears your voice, reads PDFs. Vision-language models run natively on Apple Silicon via mlx-swift: Qwen2.5-VL 7B on iPhone 15 Pro / 16 Pro / 17 Pro, Qwen2-VL 2B on iPhone 13+, Falcon 3 1B everywhere. - Drop a PDF, .docx, .md or .txt and ask questions about it — retrieval runs locally with Apple's NLEmbedding. - Web search with real source citations, only when you ask for it. - Slash commands: /summarize, /explain, /code, /tldr, /translate, /improve. PRIVACY YOU CAN AUDIT - Your work stays on your iPhone. The only network calls TokenMax can make are optional model downloads, web search you trigger, and SSH connections to servers you've added — and Settings → Privacy & Data lists every one of them: the host, what data leaves, and what triggers it. - Sealed mode hard-blocks all network traffic with one switch. - Versioned in-app Terms and Privacy Policy. REQUIREMENTS - iPhone 13 or newer recommended. iPhone 15 Pro / 16 Pro / 17 Pro for the 7B vision model. - Falcon 3 1B ships pre-installed — no download needed to start. Larger open-weight models are optional downloads that always show their exact size first (Qwen 2-VL / 2.5-VL under Tongyi Qianwen License, Falcon 3 under TII Falcon-LLM License 2.0, Bonsai 8B under Apache 2.0). TokenMax is built by Vellora AI. We don't run a server. We can't read your work because it never reaches us.