Skip to content
← Tools / Skills
ToolThe Just Super Human Foundation/10 trustMetrics-checked
JustGains logo

JustGains

Social fitness app with partner workouts and Claude-powered coaching

Visit official site →

About

JustGains is a social fitness app that pairs workout logging and real-time partner training with muscle recovery maps. Its hook is built-in coaching from Claude that works from your own training history and recovery state rather than generic advice. The feed is opt-in per workout and centers on finished sessions, PRs and streaks instead of comparison. It is on the App Store and Google Play with a web companion at justgains.com. Marketing is press-release heavy and independent reviews are scarce, so treat the AI claims as vendor-described.

What it can do

  • Workout logging with muscle recovery maps
  • Real-time partner workouts
  • Claude AI coaching from your own training history
  • Opt-in social feed for workouts, PRs and streaks
  • Companion web experience

Setup

  1. Download JustGains from the App Store or Google Play.
  2. Create an account and invite training partners.
  3. Log workouts and review muscle recovery maps.
  4. Ask the built-in Claude coach for guidance based on your history.

Prerequisites

An iOS or Android device.

Use cases

Workout loggingReal-time partner trainingMuscle recovery trackingSocial fitness accountability

Works with

Trust score — 6/10

/10 trustMetrics-checked

Scored 6/10 (metrics tier, metrics-v1). Evidence: Company press release confirms partner workouts, muscle recovery maps, built-in Claude coaching, justgains.com.; Coverage is press-release syndication only; no independent reviews found.; AI claims framed as vendor-described throughout the entry.. License: Proprietary commercial product..

How the trust score is built

Full methodology →
Adoption · stars/downloads, log-scaled vs peers
6.0/10
Maintenance · recency, releases, issue load
6.0/10
Openness · license + docs
3.0/10
Manual review · sanity read + red-flag check
6.0/10
  • · Company press release confirms partner workouts, muscle recovery maps, built-in Claude coaching, justgains.com.
  • · Coverage is press-release syndication only; no independent reviews found.
  • · AI claims framed as vendor-described throughout the entry.

Sources

Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.