Honest answers to the questions we get asked most. If yours isn't here, ask us.
No, and the distinction matters. LogicReader does two things:
Rule of thumb: use LogicReader to understand what your schedule is saying. Use your scheduling software (MSP, Asta and others) for the dates and resources that go in the contract.
Yes, for review and exploration — LogicReader imports an XER file, computes the critical path, lets you compare revisions, isolate scopes, and export to GraphML for yEd. During the beta, use sample or anonymised schedules (see the Acceptable Use Policy). For a live project, ask us for a pilot under agreed terms.
We test LogicReader with a 24,187-activity schedule. On LR Plus, above 10,000 activities and WBS groups on screen, a schedule opens folded by WBS group, so the screen stays responsive — you open the groups you need.
LR-Plus is £18 per user per month, VAT included, with up to 12 free collaborators. When subscriptions open, you can try the full product for 30 days with no card; paying is never automatic: nothing is charged unless you choose to subscribe (see the terms). Team and organisation plans are coming — the Products page has the detail. Subscribe opens in November 2026, once the commercial licence for our visualisation engine is in place.
Yes. When subscriptions open, you can try the full product for 30 days, with no card. Register your interest with an email address, and we will tell you when your place is ready. We ask for honest feedback — we read it, we assess it, and the product changes because of it.
The live service runs on a single server in the United Kingdom (Manchester). Your schedule data is held on that one server. We back it up every night and before every update, and those copies stay on the same UK server; our hosting provider also takes a weekly backup of the whole server. Your data is not used for training any model, and not shared. With the planned In-house version, your schedules stay on a server inside your own network and never reach ours.
CosmosPM Ltd is registered with the UK Information Commissioner's Office (ICO ZC143102). Our Privacy Policy describes what we collect and why. Data processing agreements with UK GDPR terms are in place with each of our sub-processors: Hostinger, Anthropic, Brevo and Microsoft, and PostHog when it is enabled. Paddle, the reseller that sells our paid plans, is not a sub-processor: it processes order and payment data as an independent controller, under its own privacy notice. Paddle never receives your schedule data.
No. Every date, float and critical path is computed by LogicReader's own deterministic engine — never by AI. Some AI features can add schedule content when you ask them to: the AI Draft Builder turns a scope document into a first-draft schedule, and the logic-type classifier suggests a logic type for each link. Both run only when you invoke them, both are off by default, and both mark what they add as AI-sourced so you can review it. You are asked before anything is sent, and your answer holds for that session. You can bring your own API key or account (Anthropic, OpenAI, Mistral, or a local model).
No. Nothing you load is used to train or fine-tune a model. The AI vendors we use (currently Anthropic) are bound by contract to the same.
Not yet. The In-house version is planned: LogicReader on a server inside your own network, so your schedules never leave it. We install it, keep it up to date, and can train your team. The price is on request. Register your interest in the In-house version or talk to us about your environment.
XER files from 2009 onwards. Older XERs may parse but are not supported.
Today LogicReader imports an XER file or an Excel workbook (From Excel: activities, durations and logic in columns, and you confirm which column is which). It also opens a GraphML network drawn in yEd. Asta Powerproject can export an XER file, and LogicReader reads it. There is no CSV import. Native connectors for Microsoft Project, Asta and others follow real demand — if you need one, ask us.
Yes — the web app runs in any modern browser, Mac included.
Evangelos Kourentzis — chartered mechanical engineer, over two decades in UK infrastructure, scheduling specialist, founder of CosmosPM Ltd. Currently building the product hands-on, with input from a small group of pilot users.
CosmosPM is self-funded today and built deliberately with a small group of pilot users. We're a small company and say so plainly.
Honest answer: that depends on whether enough projects choose it for it to stand on its own commercially — which is true of any small product. Two things hedge the question. One: an In-house version is planned, which runs on a server inside your own network. Two: exports are in open formats (GraphML, CSV), so you can take your data with you.