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SIMION® (Ordering Information)
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The Industry Standard in Particle Optics Simulation Software


  • Design new instruments or improve the sensitivity of existing instruments. Mass spectrometers and other ion optics lens systems.
  • Calculate electric and magnetic fields from 2D & 3D models
  • Calculate charged particle trajectories
  • Visualize, optimize, and analyze results
  • Extensible user programming for crazy flexibility.
  • Free basic tech support, phone/e-mail/message board.
  • Widely commercially and in academia, including by most MS manufacturers.

Description: SIMION Version is a software package primarily used to calculate electric fields and the trajectories of charged particles in those fields when given a configuration of electrodes with voltages and particle initial conditions, including optional RF (quasistatic), magnetic field, and collisional effects. In this, SIMION 8.1 provides extensive supporting functionality in geometry definition, user programming, data recording, and visualization. It is an affordable but versatile platform, widely used for over 30 years to simulate lens, mass spec, and other types of particle optics systems.

Applications: SIMION 8.1 is suitable for a wide variety of systems involving 2D or 3D, static low-frequency (MHz) RF fields: from ion flight through simple electrostatic and magnetic lenses to particle guns to highly complex instruments, including time-of-flight, ion traps, quadrupoles, ICR cells, and other MS, ion source and detector optics.

For more information, please visit our web site dedicated to SIMION.

Software License

Please see the SIMION software license. In short each license generally allows one user or one computer (at your option).

Software is shipped as an electronic download (no physical shipment).


Basic technical support: Limited, free, 1-year, phone/e-mail technical support is provided for SIMION. In addition, all users may use the online users group. Minor version updates are included, which include bug fixes and certain feature enhancements. We officially indicate 1-year tech support. Your feedback and experiences with SIMION are important to us.

Extended technical support (# SIMIONS) is now available as a separate purchace for more involved tasks. These tasks may be more complicated or more time consuming than usual. Your funding can also make development (or custom modification) of specific features in SIMION a higher priority than otherwise. It is recommended to contact SIS about specific support needs before ordering SIMIONS. SIS can provide support for many types of custom programming, data conversion, SIMION topics, and even more general computer and other related topics.


  • Customers outside the US can purchase or request pricing details through SIS's International Dealers . You may also Contact SIS directly for other general or technical questions on the SIMION software.
  • Customers inside the US may purchase SIMION products from SIS: Contact SIS or order on-line below. US educational and US government institutions should purchase part number SIMIONA or SIMIONLK.

New Part Numbers (Electronic Download)

Part No. Description Picture Price
new licenses
SIMIONC SIMION 2020 Software thumbnail $1437.00
SIMIONA SIMION 2020 Software, Academic License (for US Academic/Government use only) thumbnail $940.00
SIMIONAL SIMION 2020 Academic License, 1 Year Lease thumbnail $378.00
SIMIONLK SIMION 2020 "lab kit" Site License, for Universities only, 30 seats thumbnail $4310.00
upgrades - Upgrade discounts 15% to 90% are based on date previous version was registered. You will need to enter a "promo code" on your shopping cart to apply discounts. See upgrade license discounts below.
SIMIONCU SIMION 2020 Software, Upgrade thumbnail $1437.00
SIMIONAU SIMION 2020 Software, Academic License, Upgrade thumbnail $940.00
SIMIONLKU SIMION 2020 "Lab Kit" Upgrade thumbnail $4310.00

Which item should I buy?

  • For new capabilities from 8.0, see Changes in Version 8.1. Changes in Version 8.2 (2020).
    • Single licenses are typically purchased. Each license is for use by a single user or on a single computer (at your option). There are discounts from upgrading from earlier versions. The manual is now in electronic format only.
    • Upgrade licenses are a fraction of the cost of a new license, based on the age in years of your existing license. Approximately: 1: 0.1, 2: 0.2, 3: 0.3, 4: 0.36, 5: 0.42, 6: 0.48, 7: 0.54, 8: 0.60, 9: 0.66, 10: 0.72, 11 (or older): 0.8. You will need a promotion code ("promo code"), which is displayed when you click the "Check for Updates" button on your existing SIMION 8.1 software.
    • Site licenses are provided in the form of the SIMION Lab Kit for universities and teaching institutions only, not for industrial use or duplication on computers outside of the university classroom. Contents of the SIMIONLK Lab Kit for Universities:
      • License for use on up to 30 computers in the university classroom, computer lab, research group, or department. It is very cost effective (about the price of three commercial licenses to SIMION).
      • Instruction material can be reprinted.
    • Leases are also available. #SIMIONAL is available for a single academic user to lease SIMION for one year. This same part number can also be used by instructors wanting to install SIMION for one month in a computer lab for instructional purposes. Contact us for details or for any other special licensing arrangements.