One suite, three usage levels, five domain modules

Essential is a separate standalone product, compiled independently with its own installer. Its scope is fixed and designed for fieldwork and teaching: full data entry, ISOF production and verification, PFAS and pesticides catalog, synthetic reports. No 3D simulation, no Nexus. Free, forever, no restrictions.

Research is the free version of IsoFind, downloadable without a licence and usable for any purpose, including commercial work. It includes everything in Essential and adds, for PFAS and pesticides, 3D simulation, the Nexus engine and Quick Match, along with 3D visualization of vertical profiles and a reduced report builder.

Pro opens the whole software: advanced Nexus on every element, Quick Match with 6 modes, signature reconstruction, 3D ADE simulation across all modules, lithological ML, the catalog of 83 sensitive molecules, the full report builder, certifiable PDF signature, audit trail, encryption and multi-user work.

Both prices give exactly the same features. What sets them apart is how you will use the software. A PhD thesis, a public research project or a course falls under the €99 price. As soon as the work is invoiced to a client or carried out on behalf of a company, the commercial price of €290 applies, including when a public laboratory does contract work.

We ask for no proof: a checkbox at the time of ordering is enough. If your use becomes commercial during the year, the commercial price simply applies at the next renewal. Order IsoFind Pro

Essential and Research serve different uses.

Essential is an everyday tool for entering and verifying data. Its scope is stable, and it runs on modest machines and in isolated environments.

Research is IsoFind itself, distributed for free with modeling and analysis limited to PFAS and pesticides. If you want to try 3D simulation or the Nexus engine, or go beyond data entry, this is the edition you need. It is also the best way to check that IsoFind suits your work before ordering Pro.

All five modules already ship inside the software you installed. A module is opened by the licence key, with no download and no reinstallation, and closes at expiry without erasing anything it produced. They activate on a Pro licence only: Essential and Research give no access to them.

Typical example: a soil pollution consultancy takes IsoFind Pro for general work and adds IsoStrata for environmental hydrogeology assignments.

IsoFind Pro is ordered online, by card. Prices exclude VAT: the VAT that applies in your country is calculated at checkout by Stripe, which also sends you the invoice. Your licence file then reaches you by email.

Modules, ISOF certificates, and orders by purchase order or bank transfer go directly through IsoFind, a sole-trader business based in Foix, France: the invoice is issued by IsoFind, French VAT not applicable under article 293 B of the CGI. Public institutions (universities, geological surveys, water agencies) that cannot pay by card can write to us to adapt the administrative format.

No licence renews on its own: nothing is charged without a new order from you.

Prices are set in euros. When you pay online by card, your bank converts the amount at its own rate on the day of payment. For orders by bank transfer, the invoice is in euros and most banks handle the conversion automatically.

If you need a USD or CAD figure for budget approval, contact us and we will provide an indicative conversion based on the current rate.

IsoSupply is available now. IsoStrata, IsoPetrus and IsoDef are in preparation, and IsoStream only opens with a pilot client commitment. Rather than announce dates, we notify registered people as soon as a module is released: that is what the button on each card is for.

IsoDef is the sovereign module of the suite, dedicated to defense, intelligence, forensic police and nuclear safety. It covers isotopic forensics (explosives and precursors, narcotics, arms and ammunition, nuclear materials) and includes an atmospheric monitoring component for detecting nuclear tests and tracking radiological incidents.

Distribution is restricted and supply is subject to clearance, after client verification (organization, purpose, authorizations). All technical and commercial documentation is delivered under a non-disclosure agreement. Pricing is set case by case, by quote.

Sales are restricted to organizations established in the European Economic Area, the United Kingdom, Switzerland, Canada and the United States. To begin qualification, use the "Request contact" button on the IsoDef card.

A Pro licence includes email support, in English and French, on business days. It covers installation, activation and documented use of the software. Scientific interpretation of results and custom extension development are separate services.

Essential and Research come without contractual support, but the full documentation is available to everyone.