Why Yield's numbers are actually trustworthy
A beta tester did one hard set at 10 lbs. The app dropped her to 5 for the rest of the exercise and never let her back up, even after two sets that felt easy. Another tester's dead hang lasted 4 seconds against a 30-second target. The app scored it 100%. A third trained through a deliberately easy deload week at full effort. The score gave him a green checkmark while the coach, in the same conversation, told him to back off. These weren't edge cases from a design meeting. They were real numbers on real screens that didn't mean what they claimed to mean.
A progress chart is easy to make look good: measure from your worst day to your best one, and it'll always trend up, whether or not you actually got stronger. That's a trap most fitness apps fall into by default. The five pieces below are the bugs Yield found in its own numbers, and the fixes that made the score mean what it says.
Bugs where the score disagreed with reality
- Why did my workout app keep my weight too light? — a real tester describes a weight that got stuck at the bottom of an exercise.
- Why a 4-second hold shouldn't score like a 30-second one — the difference between finishing a set and doing the work, for anything measured by time.
- Is it bad to train harder than your program says on a deload week? — when the score and the coach's own advice disagreed.
- How do I know my training block is actually over? — a finished block that kept grading sessions against an expired deload week a month later.
The chart itself
Beyond individual bugs, there's the bigger question: is the method behind "progress" honest, or built to look good?
- Is your fitness app's progress chart rigged to flatter you? — the worst-to-best trick, and why Yield measures first-to-latest instead.
The score isn't perfect. When it's wrong, we treat that as a bug worth fixing and writing up, not something to round away quietly.
Yield Strength is in beta on TestFlight. Read more about what makes it different, or join the waitlist to try it yourself.