SymboliX vs TonoCard

SymboliX — the symbolic calculator that explains itself Type a problem and get an exact symbolic answer, typeset like a textbook. Every result is a card: differentiate it, integrate it, plot it, or open the step-by-step solution with one tap. COMPUTE • Derivatives, indefinite and definite integrals, limits, series • Equations and systems, with numeric roots when there is no closed form • Simplify, expand, factor (and prime-factorize integers) • Matrices: determinant, inverse, eigenvalues • Differential equations (desolve) SEE IT • Results that are functions plot themselves: definite integrals show their area, solved equations mark their roots • Full-screen graphing with pan, pinch-to-zoom and live updates as you type PROGRAM • An Xcas-style language: functions, local variables, for / while / repeat loops, recursion, lists, print output • Example programs: Fibonacci, primes, Newton's method, the Collatz sequence, matrices • Variables carry across cards; reset them any time STEPS AND THE AI TUTOR • Step-by-step solutions are free for everyone • Want to know why each step works? Unlock the AI tutor once: it explains the reasoning, the common traps and how to check the answer (100 walkthroughs a month; a one-time purchase, not a subscription) ALSO • Notebooks to keep your work • Computing, plotting and programming work offline and are free forever • English and Simplified Chinese

TonoCard is the iPhone companion app for the TonoCard AI Phone Secretary Card. TonoCard hardware is required. This app cannot be used on its own. When you're busy with clients, meetings, or family, let AI speak with callers first and follow your instructions. Use the app to manage your device, set call-handling rules, and review conversations. KEY FEATURES • Screen unwanted calls AI asks why someone is calling and politely declines unwanted sales pitches according to your rules. • Put important callers through AI alerts you when a conversation needs your attention. Take over the same ongoing call to speak with the caller directly. • Get the key details Review AI-generated summaries, transcripts, and follow-up notes to understand what was discussed and what needs your attention. • You decide how calls are handled Tell your AI assistant about your industry, customers, and preferences. Review and confirm proposed rules for putting calls through, taking messages, or declining unwanted calls. ADDITIONAL FEATURES • AI calling Tell AI who to contact and what to say. After you confirm, AI can place the call and report back. • Multiple phones Manage calls across up to three phones with one TonoCard device, including separate work and personal phones. • Familiar callers and social voice calls When you're unavailable, let AI explain that you're busy and take a message. Voice-call assistance also supports WeChat, WhatsApp, and LINE. See the app for compatibility requirements. REQUIREMENTS TonoCard hardware is required to use this app. Availability depends on device connectivity, settings, operating system, subscription benefits, network access, and service status. Features may request Bluetooth, microphone, contacts, notifications, or other permissions. See system prompts and in-app explanations for details. AI summaries, transcripts, and notes may contain errors or omissions. Verify important details against the conversation. SUBSCRIPTIONS Standard and Professional auto-renewable plans are available: • Standard: Everyday AI call assistance and included benefits. • Professional: Higher usage allowances and additional advanced features. See the membership page for benefits, eligible devices, allowances, and billing periods. The final charge appears on Apple's purchase confirmation screen. Allowances follow your membership benefit period. Check the membership center for remaining usage, reset dates, and availability after your allowance runs out. AUTO-RENEWAL • Payment is charged to your Apple Account when you confirm your purchase. • Subscriptions renew automatically unless auto-renewal is turned off at least 24 hours before the current period ends. • Renewal charges occur within 24 hours before the current period ends. • Manage or cancel under iPhone Settings > your name > Subscriptions. • After cancellation, benefits continue until the current paid period ends. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.tonocard.com/privacy