ProteinLedger is a mobile web app that calculates Protein Per Dollar (PPD) for any food by scanning a nutrition label or describing a fresh food item, helping you compare cost-efficiency of protein sources. Start building your ledger
What is ProteinLedger?
ProteinLedger computes the ratio of protein grams to dollars (PPD) for any food you enter. It accepts either a photo of a nutrition facts panel / fresh food label or a manual text description (e.g., “200g chicken breast, $4.50”). The app outputs an instant PPD number and saves each item to a personal ledger ranked from highest to lowest PPD. It runs as a web app accessible at app.proteinledger.com and was built by an independent developer (creator not named on the page).
Key Features
- Label scanning — Take a photo of any packaged or fresh food label to get instant PPD without manual data entry.
- Text descriptions — Enter food name, weight, and price manually for items without labels (e.g., “200g chicken breast, $4.50”); uses standard protein density for common fresh foods.
- Personal ledger — Each saved scan is automatically ranked by PPD, building a browsable list over time.
- Currency support — Works in 26 currencies; enter the price you see in your local currency.
- Free tier — Scan and save up to 15 items at no cost.
- Unlimited saves — One‑time purchase of $25 removes the save limit.
Who should use ProteinLedger?
- Budget‑conscious shoppers — Compare protein yields across eggs, dairy, legumes, meats, and supplements at the exact price you see in store (e.g., eggs at ~49.8g/$ vs. protein bars at ~14‑17g/$).
- Fitness enthusiasts — Scan your usual buys (whey, chicken, tuna, Greek yogurt) to identify which gives the most protein per dollar and swap to higher‑PPD alternatives.
- Meal planners — Build a ranked ledger of your regular groceries to inform weekly shopping and meal prep decisions.
What can you do with ProteinLedger?
- Compare categories instantly: Scan a carton of eggs (49.8g/$) and a ready‑to‑drink shake (6.7g/$) to see which delivers more protein per dollar.
- Evaluate fresh meat deals: Describe “200g chicken breast, $4.50” to get its PPD and compare with canned tuna (19.8g/$) or whole milk (35.9g/$).
- Check international purchases: Use the 26‑currency support to evaluate protein cost‑efficiency when shopping abroad or importing foods.
How does ProteinLedger work?
- Take a photo of a nutrition facts panel or fresh food label. No label? Enter the item’s name, weight, and price manually.
- ProteinLedger instantly calculates the grams of protein per dollar spent (PPD).
- Save the scan to your personal ledger, where items are automatically ranked by PPD from highest to lowest.
Pricing
Free tier: scan and save up to 15 items. Unlimited saves: one‑time purchase of $25. No subscription required.
FAQ
What’s a good PPD score?
Above 15g/$ is solid, above 25g/$ is excellent. Eggs regularly score above 45g/$, whole milk around 35g/$, most protein bars 14–17g/$, and premium ready‑to‑drink shakes often below 10g/$.
Does this work for fresh food without a label?
Yes. Describe the food in text — e.g., “200g chicken breast, $4.50” — and ProteinLedger calculates the PPD using standard protein density values for common fresh foods.
Is there a free version?
Yes. The free tier lets you scan and save up to 15 items. Unlimited saves are available for a one‑time purchase of $25.
Does it work outside the US?
Yes. ProteinLedger supports 26 currencies and works in any store anywhere. Prices are entered in whatever currency you’re using.
