The free Sim4Life alternative for inductive WPT.
ZMT Sim4Life is the gold standard for SAR-aware biomedical EM simulation in detailed anatomical phantoms — and overkill for early-stage inductive implant coil exploration. AirInduct Sim covers the magnetostatic WPT regime that drives most Sim4Life implant coil-design projects, runs in your browser, and starts at $0.
- No ZMT per-seat license, no Virtual Population entitlement.
- No FDTD mesh setup before the first coupling result.
- Eight WPT topology presets — including sub-mm coils for implants.
- Runs on any browser — perfect for early-stage coil exploration.
- Public REST API and MCP server for AI agents.
SAR certification in detailed anatomical phantoms (Virtual Population), IEEE C95.1 / ICNIRP regulatory submissions, full-wave radiation above tens of MHz. AirInduct is your fast first-pass tool; Sim4Life is the regulatory-grade certification step.
Build and sweep your implant coil in AirInduct, export geometry, then drop it into Sim4Life for the final SAR / certification pass.
See the full comparison matrix or try the medical-devices use case.