Cadence OrCAD X and KiCad both take a board from schematic to fabrication files. One costs $1,320 a year at the entry tier and runs only on Windows. The other costs nothing and runs on all three desktop platforms. The useful question is which of OrCAD's extras your boards actually need.
By Rishik Boddeti · Last reviewed
Founder of ProtoFlow, ECE at UT Austin
Quick answer
Pick KiCad if you want a free, open-source suite that runs on Windows, macOS and Linux, simulates with ngspice, and keeps projects in an open text format. Pick Cadence OrCAD X if you depend on PSpice, want integrated signal-integrity analysis (Professional tier and up), Cadence-managed cloud libraries, or a later move into Allegro X. OrCAD X runs on Windows only. Standard costs $1,320 per year in Cadence's US store, and the higher tiers are quoted by Cadence or a channel partner. For most hobby, startup and small-production boards, KiCad covers the work.
| Cadence OrCAD X | KiCad 10 | ProtoFlow | |
|---|---|---|---|
| License cost | Standard $1,320/yr (US store); Professional tiers quoted | Free, open source (GPL v3) | Free plan; paid plans raise AI limits |
| Operating systems | 64-bit Windows 10/11, Windows Server 2019/2022 | Windows, macOS 12+, Linux | Windows, macOS, Linux |
| SPICE engine | PSpice (Basic limits on Standard and Professional) | ngspice: operating point, DC transfer, AC, transient | ngspice: operating point, transient, AC, DC sweep |
| Data and collaboration | OrCAD X OnCloud (optional); team collaboration from Professional | Your own Git repo or file server | Local files, Git with visual diffs; real-time collaboration on paid plans |
| Imports from | Altium Designer, Siemens PADS, Fusion Electronics (EAGLE) | Altium, Allegro .brd, EAGLE, EasyEDA, PADS, CADSTAR and more | KiCad, Altium, EAGLE |
| Growth path | Designed to scale into Allegro X | Same tool at every team size | Exports KiCad, Altium, EAGLE, PADS, EDIF |
| Free access | 30-day trial, 6-month academic license, read-only viewer | Always free | Free plan, no card, no expiry |
Skip the comparison shopping. Try the free one first and see if it does the job.
Download for DesktopEach row links to the vendor page it came from and shows the date we last read that page. Vendors change pricing often, so check the link before you buy.
| Product | Price or limit | Source | Checked |
|---|---|---|---|
| Cadence OrCAD X | Standard $1,320.00/yr, single-user license; Professional Plus: contact for pricing, 30-day free trial | oncloud.cadence.com | |
| OrCAD X PSpice Basic (Standard, Professional) | 250 nodes or 250 devices, 1M transient or 10,000 sweep data points | cadence.com | |
| OrCAD X Academic License | Free 6-month license, extendable while enrolled | cadence.com | |
| OrCAD X Free Viewer | Free, read-only, Windows, no license needed | cadence.com | |
| PSpice for TI | Available at no cost | ti.com | |
| KiCad | Open source under GNU GPL v3, no license fee | kicad.org |
OrCAD X comes in three tiers. Standard covers schematic capture, PCB layout and PSpice Basic, and it is the only tier with a public price: $1,320 per year for a single-user downloadable license in Cadence's US store. Professional adds Live BOM supply-chain data, team collaboration, layout automation, flex and high-speed features, and integrated signal and power integrity analysis. Professional Plus adds advanced PSpice analysis, a circuit optimizer and MathWorks Simulink integration. Cadence says pricing for the upper tiers varies by region and goes through its channel partners.
The tier lines matter more than the headline price. Cadence's FAQ limits PSpice Basic to 250 nodes or 250 devices, 1 million transient data points, or 10,000 sweep points, and keeps PSpice Advanced Analysis and System Level Analysis for Professional Plus. If simulation is the reason you are looking at OrCAD, price the tier your circuits need, not Standard.
Licensing is per user. Cadence says a single-user license can be installed on up to five computers with one active at a time, and that cloud floating licenses and license borrowing are not supported yet.
KiCad is open source under GNU GPL v3, and 10.0.7 is the current stable release. It covers schematic capture, PCB layout with an interactive router that can shove traces or walk around obstacles, design rule checks you can extend with scripted custom rules, a dedicated length-tuning tool, a 3D viewer, and Gerber plus IPC-2581 output. Simulation runs on ngspice with operating point, DC transfer, AC sweep and transient modes, and you can write custom simulation commands.
There is no tier ceiling. Node counts, layer counts and board size do not change with what you pay, because you pay nothing. Projects are text files you can diff and keep in Git next to firmware. The trade is support: you get documentation and community forums unless you contract professional support separately.
Plenty of engineers who ask "OrCAD or KiCad" are really asking about the simulator. OrCAD runs PSpice natively, so if your component vendors hand you PSpice models and your test plan uses PSpice-specific analyses, OrCAD fits without translation. The advanced layer, including the optimizer and the Simulink link, sits only in Professional Plus.
KiCad's ngspice handles the four standard analyses, which is enough to check a regulator loop, a filter or a bias network. If you mainly want PSpice for analog parts and are happy doing layout elsewhere, Texas Instruments offers PSpice for TI at no cost. TI says it uses Cadence PSpice technology. Some teams pair it with KiCad for layout instead of buying an OrCAD seat.
OrCAD X is a Windows application. Cadence's FAQ lists 64-bit Windows 10 and 11 in Professional and Enterprise editions plus Windows Server 2019 and 2022, and it names Windows 10 Starter and Home Basic as unsupported. On a Mac or a Linux workstation, OrCAD means a separate Windows machine or a virtual machine. KiCad publishes native builds for all three platforms.
Moving an existing OrCAD board into KiCad is possible. KiCad 10 imports Cadence Allegro binary .brd files, the database OrCAD X PCB layout saves, and the 10.0.7 release added support for Allegro 24.1 and 25.1 board files. KiCad's documentation is direct about the limits: Allegro design rules and constraints are not fully imported, flex stackups are not supported, and some pad shapes are approximated. OrCAD Capture schematics (.DSN) are not on KiCad's documented import list, so plan to recapture the schematic.
Going the other way, Cadence's FAQ names design translators for Altium Designer, Siemens PADS and Autodesk Fusion Electronics. KiCad is not on that list.
ProtoFlow is a free desktop app for Windows, macOS and Linux that reads and writes KiCad projects, so it sits on the KiCad side of this decision. You describe the circuit in plain language and get an editable first-draft schematic with real LCSC, DigiKey and Mouser parts, then run ERC, lay out the board with the auto-router, check DRC, simulate with ngspice, and export Gerber X2, Excellon drill, BOM and placement files.
A design started in ProtoFlow can move toward OrCAD later, because ProtoFlow exports Altium and PADS formats, both of which OrCAD X's translators accept, plus EDIF.
| Criteria | ProtoFlow | OrCAD X or KiCad |
|---|---|---|
| Cost to start | Free plan with the full editor and AI. | KiCad free; OrCAD X Standard $1,320 per year. |
| Runs on macOS and Linux | Yes, native desktop app. | KiCad yes; OrCAD X is Windows only. |
| SPICE simulation | ngspice: operating point, transient, AC, DC sweep. | KiCad uses ngspice; OrCAD uses PSpice with tier limits. |
| AI schematic drafting | Built in, from a plain-language prompt. | None in KiCad; Cadence describes OrCAD X as AI-enabled. |
Reviewed on: 2026-10-14
For schematic capture, layout and standard SPICE work on typical boards, KiCad covers what most engineers need at no cost. OrCAD X pulls ahead with PSpice Advanced Analysis in Professional Plus, integrated signal-integrity analysis from Professional up, Cadence-managed cloud libraries, and a direct path into Allegro X.
Cadence's US OnCloud store lists OrCAD X Standard at $1,320 per year for a single-user downloadable license. Professional and Professional Plus are priced by Cadence or a channel partner, and Cadence says pricing varies by region.
Not a permanent one for commercial work. Cadence offers a 30-day commercial trial of Professional Plus with no payment details, a 6-month academic license that students can keep extending while enrolled, and the OrCAD X Free Viewer, which opens designs read-only on Windows. TI's PSpice for TI is a separate no-cost simulator.
KiCad is the free option closest in scope: schematic capture, PCB layout, SPICE simulation and fabrication outputs in one open-source suite. It imports OrCAD X board files (.brd) but not Capture schematics, and it does not replace PSpice Advanced Analysis or OrCAD's integrated SI analysis.
KiCad 10 imports Cadence Allegro binary .brd boards, which is the format OrCAD X PCB layouts use, but its documentation says design rules and constraints are not fully imported. OrCAD Capture .DSN schematics are not on KiCad's documented import list.
No. Cadence lists 64-bit Windows 10 and 11 (Professional and Enterprise) and Windows Server 2019 and 2022 only. KiCad runs natively on Windows, macOS and Linux.
Yes. ProtoFlow exports Altium and PADS files, which OrCAD X's translators accept, plus EDIF, so a design started in ProtoFlow can move into OrCAD when the project needs it.
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