Softwr

Research · head to head

OpenEye, Cadence Molecular Sciences vs Zotero

OpenEye, Cadence Molecular Sciences logo

OpenEye, Cadence Molecular Sciences

Research

Computational chemistry toolkits and the Orion cloud platform, now inside Cadence

From
On request
Rated
-
Full reviewWebsite
Zotero logo

Zotero

Research

Collect, organize, annotate, cite and share your research

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Zotero has a free tier, so it costs nothing to try first.
  • Each has a real cost: OpenEye, Cadence Molecular Sciences the free Public Domain Research Licence requires surrendering intellectual property rights and publishing results into the public domain, which rules it out for any academic group with a technology transfer office or patent ambitions.; Zotero free account storage is limited; paid tiers start at $20/year for 2GB and reach $120/year for unlimited storage
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which OpenEye, Cadence Molecular Sciences and Zotero actually diverge.

Attributes where OpenEye, Cadence Molecular Sciences and Zotero differ
AttributeOpenEye, Cadence Molecular SciencesZotero
Starting priceOn requestFree
Pricing modelquotefreemium
Free tierNoYes
PlatformsLinux, Windows, macOS, Web, APIWeb

Identical on both: user rating (Not yet rated), category (Research).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in OpenEye, Cadence Molecular Sciences

  • OMEGA
  • ROCS
  • ROCS X
  • Orion platform
  • Programmatic toolkits
  • Academic routes
  • Structure preparation
  • Docking and scoring

Only in Zotero

Nothing recorded that OpenEye, Cadence Molecular Sciences does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

OpenEye, Cadence Molecular Sciences

  • A pharmaceutical discovery team screening a multi-billion compound library by three-dimensional shape rather than by two-dimensional similaritynot Zotero
  • A computational chemist embedding conformer generation into an internal pipeline through the Python toolkitsnot Zotero
  • A university group publishing openly that can accept the public domain licence terms in exchange for zero costnot Zotero
  • A biotech scaling virtual screening on cloud compute without building its own clusternot Zotero

Zotero

  • Research paper and citation managementnot OpenEye, Cadence Molecular Sciences
  • Academic bibliography organizationnot OpenEye, Cadence Molecular Sciences
  • Cross-device synchronization of research materialsnot OpenEye, Cadence Molecular Sciences

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

OpenEye, Cadence Molecular Sciences

  • The free Public Domain Research Licence requires surrendering intellectual property rights and publishing results into the public domain, which rules it out for any academic group with a technology transfer office or patent ambitions.
  • Free academic licences are renewable but re-evaluated annually with no guarantee of continuation, so a multi-year research programme has no assured software entitlement beyond the current year.
  • OpenEye now sits inside Cadence Design Systems, whose core business is chip design, so the roadmap and licensing culture are set by a company for which molecular sciences is one growth line among several.
  • Commercial pricing is entirely unpublished and structured as annual subscriptions with separate Orion compute, making total cost of a screening programme hard to forecast before contracting.
  • The toolkits assume real computational chemistry expertise; they are libraries and applications for specialists, not an interface a medicinal chemist can drive without training.

Zotero

  • Free account storage is limited; paid tiers start at $20/year for 2GB and reach $120/year for unlimited storage
  • Sync and web access are optional add-ons layered on the core desktop app rather than included outright

Pricing, plan by plan

OpenEye, Cadence Molecular Sciences

On request
  • Commercial licence$undefined/year
    • Annual subscription priced through Cadence sales
    • Toolkits and applications licensed separately from the Orion platform
    • Orion compute billed on top of software entitlements
  • Academic Package$undefined/year
    • Paid annual subscription for university groups under ten members
    • Includes support
    • Researchers retain intellectual property rights
  • Public Domain Research LicenceFree
    • No cost
    • No support of any kind
    • No intellectual property rights retained

Zotero

Free
  • FreeFree
    • 300 MB storage
    • Collaboration features at no cost
    • Group libraries for team use
  • 2 GB Storage$20/year
    • 2 GB storage
    • Synchronization of PDFs, images, web snapshots across devices
  • 6 GB Storage$60/year
    • 6 GB storage
    • Synchronization across all devices
  • Unlimited Storage$120/year
    • Unlimited storage
    • Full synchronization capabilities

Which should you pick?

Choose OpenEye, Cadence Molecular Sciences if

  • You need omega.
  • You work on Linux, Windows, macOS, Web, API.
  • You also want rocs.
OpenEye, Cadence Molecular Sciences review

Choose Zotero if

  • You want to start without paying.
Zotero review

Questions people ask

Is OpenEye, Cadence Molecular Sciences or Zotero better?
Neither clearly leads. OpenEye, Cadence Molecular Sciences starts at On request and Zotero at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OpenEye, Cadence Molecular Sciences or Zotero?
Zotero has a free tier; the other does not. Paid plans start at On request for OpenEye, Cadence Molecular Sciences and Free for Zotero.
Does OpenEye, Cadence Molecular Sciences or Zotero run on more platforms?
OpenEye, Cadence Molecular Sciences runs on Linux, Windows, macOS, Web, API. Zotero runs on Web.
Can I use Zotero for free?
Yes. Zotero has a free tier, so you can try it without paying. OpenEye, Cadence Molecular Sciences starts at On request.
What is OpenEye, Cadence Molecular Sciences best used for?
OpenEye, Cadence Molecular Sciences is most often used for a pharmaceutical discovery team screening a multi-billion compound library by three-dimensional shape rather than by two-dimensional similarity, a computational chemist embedding conformer generation into an internal pipeline through the python toolkits, a university group publishing openly that can accept the public domain licence terms in exchange for zero cost, a biotech scaling virtual screening on cloud compute without building its own cluster. Of those, a pharmaceutical discovery team screening a multi-billion compound library by three-dimensional shape rather than by two-dimensional similarity and a computational chemist embedding conformer generation into an internal pipeline through the python toolkits are not what Zotero is typically brought in for.
What can OpenEye, Cadence Molecular Sciences do that Zotero cannot?
OpenEye, Cadence Molecular Sciences covers OMEGA, ROCS, ROCS X, Orion platform.

Answered from the vendors’ own pages

OpenEye, Cadence Molecular Sciences: Is OpenEye still OpenEye?

It trades as OpenEye, Cadence Molecular Sciences, and is part of Cadence Design Systems following acquisition. The product names OMEGA, ROCS and Orion continue.

Zotero: How much storage does Zotero's free tier provide?

The free tier includes 300 MB of storage for research materials, citations, and related files. Collaboration features in group libraries are available at no additional cost.

Source
OpenEye, Cadence Molecular Sciences: Can academics use it for free?

Yes, through the Public Domain Research Licence or a Teaching Licence, but both come with no support and no intellectual property rights. Keeping IP rights and support requires the paid Academic Package.

Zotero: What are the pricing tiers for Zotero paid storage plans?

Zotero offers three paid storage tiers: 2 GB for $20 per year ($1.67 monthly), 6 GB for $60 per year ($5 monthly), and Unlimited storage for $120 per year ($10 monthly).

Source
OpenEye, Cadence Molecular Sciences: What is ROCS X?

A machine learning enabled extension of ROCS shape search, built on the Orion platform, aimed at screening chemical spaces in the trillions of molecules.

Zotero: Do group libraries count against storage limits in Zotero?

Group library file storage draws from the group owner's personal storage account, not a separate quota. Collaboration in group libraries is available at no additional charge.

Source
OpenEye, Cadence Molecular Sciences: Is commercial pricing published?

No. Commercial licences are annual subscriptions quoted through Cadence sales, with Orion compute charged separately.

Share

Related pages

More on OpenEye, Cadence Molecular Sciences

More on Zotero

Keep looking

Other head to heads