RecipeScale
A recipe scaling calculator that adjusts ingredient quantities and recalculates cooking times and temperatures.
Target User
Home cooks who need to scale recipes up or down for different group sizes
Core Action
Paste a recipe and desired servings, get adjusted quantities with adapted cook times
Business Model
Free basic scaling, $3.99/mo for cooking time adjustments and metric conversion
Based on Paprika / NYT Cooking
Adjusts cook times and pan sizes, not just ingredient quantities
Related Ideas
BoardGameMatch
An app that recommends board games based on your group size, play time, and complexity preferences.
Target User
Board game enthusiasts looking for the perfect game for game night
Core Action
Enter your group size and available time, get personalized game recommendations
Business Model
Free recommendations with affiliate links, $3.99/mo for collection management
Based on BoardGameGeek / Board Game Atlas
Group-aware recommendations — accounts for your group's specific preferences and collection
PatternScale
A tool for knitters and sewers that automatically scales sewing patterns to custom measurements.
Target User
Home sewers who struggle to adjust commercial patterns to their body
Core Action
Enter your measurements, upload a pattern, get a scaled version that fits you
Business Model
Free for basic scaling, $6.99/mo for advanced grading and pattern storage
Based on Seamly / PatternReview
Automated pattern scaling to your exact measurements, not just standard sizes