Scan & verdict
Barcode, label photo, or a whole food from produce to the meat counter — a clear Buy / Limit / Avoid, tuned to your goal, in a second.
Evidence-honest food companion
Make every bite count.
Scan any food for a clear Buy / Limit / Avoid verdict, cook your own cuisine, and protect your muscle — every answer backed by graded evidence. If it can't be cited, Susta says so instead of bluffing.
Works offline, on-device
Your data stays yours
No ads, no selling data
The gap
Scanners judge your food, then forget it.
Most food apps give a score and walk away — no plan, no cooking, no memory. And the popular ones use a single fixed formula that can't tell a diabetic from a marathoner. Susta is different: it judges for your goal, teaches the why, cooks in your cuisine, and keeps a record that's yours to keep.
What it does
One honest companion, the whole loop.
Learn the why
Every verdict can open a short, cited lesson — added sugar, protein, blood sugar, fasting. Conviction, not compliance.
Cook your cuisine
Say what you're craving; keep the dish's identity and swap only the glucose-spiking base — adobo over cauliflower rice, explained.
A coach that won't bluff
Ask "can I eat this?" or "what is GLP-1?" — every answer traces to the cited engine. It refuses honestly rather than making things up, and never advises on medication.
Your record, your property
Weight, muscle, glucose, and every food you log build a private history — export the whole thing any time, free. A doctor / nutritionist view when you choose to share.
Private by default
Everything stays on your device unless you turn on backup. Only a barcode number ever leaves to look up a product. No ads, no analytics, no selling your data.
Why it's different
The grade is how sure the science is — not a vibe.
Susta separates two things every other app blurs: the verdict (what to eat for your goal) and the evidence grade (how strong the science behind it is, A to D). When a call rests on a preference rather than hard data, it's badged a "personal standard" and says so. That's the whole point — honest enough to trust.
Graded, not guessed
Randomised trials to contested data — every verdict shows its evidence tier.
Refuses to bluff
If the engine can't cite it, the coach says so — no confident hallucinations.
Tuned to your goal
GLP-1, blood sugar, keto, longevity, or everyday — the same food, judged for you.
Culturally native
Keeps your cuisine intact and swaps only what spikes you, always explained.
Teaches the why
Every verdict opens a short, cited lesson — sugar, protein, blood sugar, fasting. Conviction, not compliance.
Closes the loop
Scan, learn, cook, and track — most apps judge your food and forget it; Susta carries you from verdict to plate to progress.
How it works
Set your goal. Scan. Understand. Keep going.
Tell Susta your goal
GLP-1 muscle, blood sugar, keto, longevity, or everyday healthy — it tunes every verdict to you.
Scan or snap a meal
Barcode, label, whole food, or a photo of your plate. A clear verdict with the evidence behind it.
Learn & cook
Open the "why," then cook something in your cuisine that fits — the loop from craving to plate.
Build your record
Log it, track weight and muscle, and keep a history you own and can share on your terms.
Free to start
Make the next bite count.
Scanning, verdicts, the basic plan, the coach, and your full data export are free — forever. No card, no catch.
Open the app