RizzFit
Free fitness calculators + a plan that adapts to you
Details
- External ID
- 1260168
- Source
- PH
- Company
- —
- Product
- izzit
- Website domain
- producthunt.com
- Launched
- Sept. 26, 2026
- Cohort
- —
- Upvotes
- 2
- Upvotes percentile
- 0.7405388069275176
- Tags
- Health & Fitness
- Fetched at
- Sept. 28, 2026, 1:01 a.m.
- Updated at
- Sept. 28, 2026, 1:01 a.m.
Description
RizzFit turns one-off fitness numbers into a plan that learns. Start with 18 free calculators (TDEE, macros, protein, body fat, 1RM, calorie deficit, heart-rate zones) that show their formulas and sources, with no signup. Then let the app adjust your calories and training from your real progress trend.
Enrichment
- Theme
- calculators and financial estimation tools
- Vertical
- Healthcare
- Function
- Workflow automation
- Audience
- B2C
- AI stance
- AI feature
- Project type
- Commercial product
- Normalized one-liner
- adaptive workout planning and calculators for fitness
- Manually corrected
- False
Could you build this?
Yes A suite of standard fitness formula calculators (Harris-Benedict, Katch-McArdle, etc.) paired with simple local or database trend tracking is an ideal solo vibe-coding project.
Competitors
Other products that read as similar to this one — 218 launches clear the similarity bar, closest 8 shown.
Attention rank: #15 of 219 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 316 days after the earliest competitor.
- Carnivore Weekly Macro Calculator · ph · 2026-09-16 · 2 upvotes · similarity 0.56
- Sixpacks.fit · ph · 2026-09-09 · 1 upvotes · similarity 0.56
- Weighs & Means · ph · 2026-09-25 · 2 upvotes · similarity 0.54
- CalculCalories · ph · 2026-09-16 · 1 upvotes · similarity 0.54
- Your Calculator Hub – Free Calculators · ph · 2026-09-14 · 1 upvotes · similarity 0.54
- PlateFit · ph · 2026-09-13 · 1 upvotes · similarity 0.53
- The Gym Calculator · ph · 2026-09-30 · 1 upvotes · similarity 0.53
- UniversalCalc · ph · 2026-09-15 · 2 upvotes · similarity 0.52
Other launches for this product
Same idea, different domain
Nobody's really built a workflow automation tool for Real estate yet.