
Inductor Design Pro
AP/LI² iter·custom lib·offline
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Free
In-App Purchases
About
Inductor Design Pro is a secure, offline-first power inductor design tool for power electronics engineers and magnetic component design workflows.
Core capabilities: AP-method and LI²-method core selection, joint core-and-winding iteration, Pareto non-dominated filtering with DQS five-dimension scoring (loss, core volume, thermal margin, manufacturability, risk), and automatic multi-candidate comparison. Supports custom material / core / bobbin databases merged with the built-in library. Peak flux density B_max is optional — leave blank to auto-determine from material and operating temperature; if set manually, use values appropriate to the material family to avoid excluding viable cores too early. Topologies: Buck, Boost, Forward (output filter inductor only, not the transformer), and Interleaved Buck (multi-phase, one inductor per phase), with CCM / DCM / BCM modes and full co-evaluation of core, material, air gap, temperature rise, and losses.
Parameter sweep: frequency sweep and ripple-ratio / DCM sweep charts visualize how inductance and core size vary with key parameters, helping you trade off switching frequency against core size.
Workflow: three-step closed loop (Specifications & Constraints → Core & Winding Selection → Summary & Report), with PDF report and JSON design-file export. Built-in core and wire database included.
Privacy & data: core design runs locally; design data stays on your device and is never uploaded to the developer’s servers. Subscription and restore purchases require a network connection.
Subscription: Inductor Design Pro Annual Subscription, 1-year term, auto-renews at expiry, $29.99/year (Mainland China ¥198/year; other regions as shown in the App Store). New users get a 14-day full-feature free trial — see the Subscription tab (3rd tab in the app). Manage or cancel anytime in Settings → Apple ID → Subscriptions; no refund for the current period.
Privacy commitment: no data collection, no account system.
Privacy Policy: https://tobebetter2026.github.io/Public-documents/InductorDesignPro/Privacy-policy.html
Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in Inductor Design Pro
4.0
June 15, 2026
Smarter candidate ranking: Pareto non-dominated filtering plus DQS five-dimension scoring (loss, core volume, thermal margin, manufacturability, risk) for clearer multi-scheme comparison. Optional B_max: leave blank to auto-set the flux-density limit from material and operating temperature, reducing false exclusions from overly conservative manual values. My Database: materials, cores, and bobbins support enable/disable plus source, version, and reviewer fields; Excel bulk import/export stays in sync. Disabled entries are excluded from new design candidates; existing designs can still be viewed and recalculated.
MoreSubscription plans
Annual Subscription
14-day trial. Full features with subscription.
$29.991 Year
14 Days trial








