Spire CoachOurs
The run analyzer reads your run history in the browser and shows how you play: wins per character, card rewards taken and skipped, rest choices, elites by act and what ended your runs. Open any run to step through it floor by floor. Nothing is uploaded.
The desktop app, in closed beta for Windows and Mac, reads each new run as you finish it and keeps a private history; a run can be shared as a link with a preview image. The coach, which shows where a different choice would have changed a run, is still being built.
Good for reviewing your own runs without uploading them, on Windows or Mac.
Sources: Run analyzer, Beta and plans, Privacy policy
Knowledge Demon
A run tracker and community stats site. Its mod sends each finished run to the site and backfills old runs on first launch; runs under five floors and abandoned runs are not uploaded. Its mod page describes a full run history with the floor-by-floor map path, card choices and event decisions.
Good for community stats from a large pool of uploaded runs, with a mod on every desktop platform.
Sources: knowledgedemon.com, Mod page
A Windows app that reads your run history when a run ends and breaks down the deck, economy and every fight of each run. Its AI Coach answers questions such as why a run ended where it did, from your own run data. Sending runs to MetaBot is opt-in, per its data methodology page.
The download, run tracking, records and tier lists are stated as free; a paid Pro (Supporter) tier exists in its terms, and which features it covers is not stated.
Good for asking an AI about your own finished runs, on Windows.
Sources: Download page, Data methodology, Terms
Slay the Stats
Personal run analytics calculated in your browser: it says nothing leaves your machine unless you sign in for cloud sync. Each run has an HP chart with act boundaries and a floor-by-floor breakdown, and you can share a link to any run.
Good for browser analysis without an upload, plus sharing a run as a link.
Sources: slaythestats.com
Spire Codex
A large Slay the Spire 2 database and wiki in many languages, with a run browser, replays, leaderboards, a seed finder and a public API. Runs arrive from its Workshop mod, its Overwolf overlay or a manual upload, and each run gets its own shareable page with floor-by-floor stats. Its privacy policy says submitted runs and persona names are public.
Good for looking up cards and relics, and public run pages and replays.
Sources: spire-codex.com, Submit runs, Privacy, Workshop mod
Spire Vault
A free, open-source run tracker in the browser and as macOS and Windows apps, with no account needed for tracking and nothing uploaded unless you turn on cloud sync. Its Run Coach (beta) reads your live save and a screenshot to suggest a card pick during a run, using an AI key you provide. It also has a co-op partner finder.
Good for a free tracker on Mac or Windows, and live pick help if you have an AI key.
Sources: spirevault.app, Source code
SpireSage
A phone companion with a searchable database of cards, relics, enemies and potions, boss guides, and Spiro, an AI that answers strategy questions from game data, community tier ratings and expert commentary. It does not read your run files; a personal run tracker is listed on its roadmap under exploring.
Good for looking things up and asking strategy questions on your phone.
Sources: spiresage.app, Roadmap
STS Tracker
A community stats tracker: sign in with Steam and upload runs by hand, or let its in-game mod or the rusty-sts tray app upload them automatically. Uploaded runs feed the global dashboard; its About page says individual run details are only visible to you. Its mod scores card picks from community win-rate data.
Read on an archived copy of its own pages from 11 October 2026: the live site did not load for us on the day we checked.
Good for community-wide card and relic stats, with personal stats on top.
Sources: About page (archived copy), rusty-sts
STS2 Stats
A browser dashboard for your runs. It says files are read in your browser and never sent to a server, with every run broken down floor by floor.
Good for a quick look at your runs in the browser, nothing uploaded.
Sources: sts2stats.app
Untapped.gg
An overlay that shows pick rates, win rates and top-player tips while you play, with community tier lists and your past runs in one place. It runs on Windows, with experimental Linux builds; its download page says Mac and Steam Deck are not supported yet. Its privacy policy says the Companion uploads game data automatically.
Good for pick rates on screen while you play, on Windows.
Sources: Download page, Privacy policy