Longstanding vs Juvis Verified Fitness (LongevityGames)
Juvis records your sets on video, checks form with pose tracking and ranks you on leaderboards by age and sex. Longstanding tests the same kinds of movement with no camera and no leaderboard, against norms and the line for 85.
Checked against Juvis Verified Fitness’s own pages on
The short answer
The two overlap in the exercises and disagree on everything else. Juvis, formerly LongevityGames, uses your iPhone camera to record and verify dead hangs, one-leg stands, push-ups and more, and compares you with other people on leaderboards by age group and sex. Longstanding asks you to do a similar battery with a stopwatch, keeps the results on your phone, and compares you with published norms and your own age-85 line, never with other users. Pick Juvis if competition drives you; pick the app if you want a quiet quarterly benchmark.
What Juvis Verified Fitness is
Juvis describes itself on the App Store as turning “your workout into verified performance”: automatic video recording of workouts, pose-based form analysis and movement feedback, verified personal records and one-rep-max tracking, and leaderboards by age group, gender and discipline. It lists pull-ups, push-ups, squats, V-ups, dead hangs, one-leg stands and barbell and dumbbell exercises among the movements it gives leaderboards and form feedback for.
Its stated aim is to bring “the structure of competitive athletics to everyday fitness”, for performance, health or longevity, with a permanent video record across years. It is free with in-app purchases, requires iOS 18, and its privacy label says contact information and identifiers may be collected and linked to you.
Side by side
| Longstanding | Juvis Verified Fitness | |
|---|---|---|
| What it measures | Ten field tests you do yourself: single-leg stand, 5× sit-to-stand, floor sit-and-rise, grip, dead hang, push-ups, farmer carry, VO₂max, zone 2 minutes and a four-flight stair climb. | Any exercise that fits in the camera frame, with verified records and form feedback for popular ones including dead hangs, push-ups and one-leg stands. |
| How often | A baseline, then a re-test every quarter. Nothing is measured in between. | Every workout, recorded on video. |
| Reference | Each result is a percentile against a named published table for your age and sex, labelled estimated where no clinical table exists, and read against the line you need today for your age-85 goal. | Other Juvis users, on leaderboards by age group and sex. |
| Verification | None. You time and count your own tests. The protocol is fixed so re-tests compare. | Video and pose tracking verify each record. |
| Where the data lives | On your phone, with an optional iCloud or Google backup. No account and no server for your results. | Video records kept by the service; contact information and identifiers may be linked to you. |
| What you need | A timer, a chair, a wall, a bar, two weights and a staircase. A grip dynamometer for one test. A watch is optional, for VO₂max and zone 2. | An iPhone on iOS 18 positioned to film you, and an Apple Watch for some features. |
| Cost shape | The baseline is free. One purchase, or a yearly one, unlocks re-tests, backcast lines and history. | Free with in-app purchases. |
| The age-85 question | The point of the app: every test has a line for 85, worked backwards to today. | Not something the listing describes; the comparison is with other users now. |
The big difference
Juvis is built around proof and competition: a verified video of every set and a rank against people like you. Longstanding is built around a private reference: a percentile from a published table and a line worked backwards from what you want to do at 85. Nobody else sees your results, and the app never shows you a leaderboard, because a quarterly benchmark against a norm is a different motivation from a race.
Where the exercises overlap, the sourcing differs too. The app tells you that the dead hang has no clinical norm and labels its bands as estimates; a leaderboard needs no norm at all.
Where Juvis Verified Fitness is the better choice
If being measured on camera and ranked against others is what gets you training, Juvis gives you verified records, form feedback on each rep, and a video archive that will be fun to look back on in twenty years. The app offers none of that.
Longstanding is not for you if
You want to compete, or you want form feedback on your lifts. Longstanding watches nothing and ranks nobody.
The research behind this page
Everything on this page about the other product was read off its own pages on the date shown. Prices are not listed, because they change and a stale one would mislead.