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Sigwren

Turns a race GPX file into a segment-by-segment demand profile and builds training plans that close the athlete's capability gap.

Actively maintained

Sigwren: data, price, alternatives
  • Is it safe? Its policy says it does not train on your data.See ↓
  • Is it free? We have not read the prices of Sigwren yet; they are next in our queue. Until then, the official site has them.sigwren.com ↗
  • What else does this? We have not measured alternatives for this one yet. If you know one, add it below.See ↓
At a glancechecked Oct 23, 2026

not read yet

Use

For
Ultra and trail coaches preparing athletes for specific races using GPX course data and athlete assessments
Activity
Actively maintainedrelease 2 weeks ago · site updated 12 days ago
App Store
00 ratingsiPhone & iPad · updated Oct 21, 2026
Used for
  • model a race course from a GPX file
  • measure athlete trail capability and fitness profile
  • build training plans that close gaps to race demands
Worth knowingcomputed from what we read · each with its source
Your datawhat they publish, each line with its page · read Oct 29, 2026

“We may use one or more AI providers for this, now or in future, and the same commitments apply to every one of them: Your data is not used to train AI providers' models.”

privacy policy ↗

These are Sigwren's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 29, 2026
  • MCP servercom.sigwren/sigwrenverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-29
  • Address to connectmcp.sigwren.com/mcp

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

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beta

Three tools from the Atlas for the job you describe, each with what fits and what does not.

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Questions this page answers
  • What is Sigwren?

    Turns a race GPX file into a segment-by-segment demand profile and builds training plans that close the athlete's capability gap.

  • Who is Sigwren for?

    Ultra and trail coaches preparing athletes for specific races using GPX course data and athlete assessments

  • Is Sigwren still maintained?

    Actively maintained: release 2 weeks ago · site updated 12 days ago.

  • Does Sigwren train AI on your data?

    No, per its privacy policy (2026-10-29): “We may use one or more AI providers for this, now or in future, and the same commitments apply to every one of them: Your data is not used to train AI providers' models.”

  • Is Sigwren safe?

    We do not audit vendors. What Sigwren publishes, read 2026-10-29: on training with your data, “We may use one or more AI providers for this, now or in future, and the same commitments apply to every one of them: Your data is not used to train AI providers' models.”.

  • Does Sigwren have an iPhone app?

    Yes: “Sigwren” on the App Store, rated 0 from 0 ratings; current version released 2026-10-21.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk