Paytools vs Usages

Paytools is an offline payment-engineering workbench for developers, QA engineers, integrators, students, and fintech teams. Decode and inspect common payment-message structures, explore field definitions, convert technical data, and keep essential payment references close at hand. Processing happens locally on your device, so pasted messages and imported files are not uploaded to a server. PAYMENT TOOLS • Inspect ISO 8583 MTIs, bitmaps, and present data elements • Decode and build primary and secondary bitmaps • Parse BER-TLV data and identify common EMV tags • Recognize SWIFT MT blocks and ISO 20022 XML messages • Convert between HEX, ASCII, decimal, binary, and packed BCD • Validate synthetic card numbers with the Luhn algorithm • Compose synthetic Track 2 and ISO-0 PIN-block test data • Use development utilities for XOR and DES odd parity KNOWLEDGE LIBRARY • Search all 128 ISO 8583 data elements • Learn ISO 8583:1987, 1993, and 2003 MTI concepts • Follow authorization from merchant to acquirer, scheme, and issuer • Understand STIP, advice, reversal, clearing, and settlement flows • Review ISO 20022 message families and validation concepts • Study EMV transaction and cryptogram terminology CODES AND FIELDS Search operational response-code references for common ISO profiles, Visa, Mastercard, UnionPay/UPI, 3-D Secure, and gateway HTTP outcomes. Open any ISO field for its purpose, format, and implementation notes, including an expanded guide to DE22 POS Entry Mode. PRIVATE BY DESIGN Paytools has no account requirement and no cloud processing. Use synthetic or appropriately masked test data. Production payment formats and code meanings can vary by network, region, product, and specification release. Paytools is an independent educational and development utility. It is not affiliated with or endorsed by any payment network. Formal certification and production processing require the current authorized specifications, test packs, approved cryptographic systems, and applicable security controls.

Usages brings AI coding-tool usage into one private dashboard. Connect supported AI coding services and see the usage information each provider makes available, including quota windows, reset times, token activity, cost summaries, and account status. FEATURES • View multiple providers in one dashboard • Track remaining quota and reset times • Review daily token and cost history when the provider supplies it • Set a personal daily token goal • Receive optional, locally scheduled usage alerts • Add Home Screen widgets for quick status checks • Focus with a countdown or Pomodoro timer, focus sounds, focus stats, and a breathing pause before distracting apps • Import supported local usage logs for on-device summaries USAGES PRO The free plan includes two providers and one quota alert. Usages Pro, an auto-renewable subscription, connects every provider and turns on every alert: thresholds you choose, window resets, run-out forecasts, pace, budget and your daily goal. Yearly or monthly; manage or cancel in Settings > Apple Account > Subscriptions. PRIVATE BY DEFAULT Usages has no account or data-collecting backend of its own. OAuth tokens and Admin API keys are stored in the iOS Keychain. Usage history, settings, and imported summaries stay on your device, and can optionally sync through your own private iCloud. Crash reports and anonymous product analytics never include credentials, emails, account names or usage figures, are not used for tracking, and can be turned off in Settings. No advertising. Usages is an independent app and is not affiliated with, endorsed by, or sponsored by any supported service provider. Available metrics vary by provider and account type. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://usages.app/privacy/