Decode the ingredient list.
Photograph any food ingredient list. Sugar Decoder finds the hidden names for sugar and groups them into seven easy-to-read families — privately, on your phone.
Free to download · 5 free scans every month
Three steps. A few seconds.
Food labels hide sugar behind dozens of names. Sugar Decoder does the reading for you.
Snap the label
Photograph an ingredient list, or pick a photo you already have. Crop and zoom so only the ingredients are in frame.
We read it on your phone
On-device text recognition reads the list and checks every word against 274 known names for sugar.
See every hidden sugar
Matches are highlighted and grouped into 7 families, so you can see how many different sugars a product really has.
Clear answers, beautifully simple.
No clutter, no sign-up — just the ingredient list, decoded.




Simple, accurate, private.
Built on a carefully sourced reference database — every name is backed by a citation, never a guess.
274 sugar names
The Blood Sugar Code reference plus sugars found on European labels — from dextrose to barley malt syrup.
7 sugar families
Results are grouped into practical label-reading families, with a count of distinct sugars found.
Five label languages
Recognises ingredient names in English, German, French, Spanish and Italian — backed by real, cited sources.
Crop & zoom
Frame exactly the ingredient list before scanning for cleaner, more accurate results.
Private by design
Everything runs on your device. No account, no uploads, no tracking — and it works offline.
Full transparency
See the raw text the app read from the label, so you can always check its work.
Sugar goes by many names.
Every match is sorted into one of seven practical families, so a long list of unfamiliar words becomes something you can read at a glance.
Sugar / Cane / Beet
From raw and unrefined forms through to fully refined white sugar.
e.g. cane sugar, beet sugar, turbinado
Named Sugar / Carbohydrate
Sugars listed under their own specific name rather than simply “sugar”.
e.g. dextrose, fructose, maltodextrin
Starch / Grain / Syrup
Syrups made by breaking down starch from corn, rice, tapioca and more.
e.g. corn syrup, glucose syrup, tapioca syrup
Fruit / Juice Concentrate
Concentrated juices that sound natural but still add sugar.
e.g. apple juice concentrate, grape juice concentrate
Plant / Bee Sweetener
Sweeteners collected directly from plants or bees.
e.g. honey, agave nectar, maple syrup
Malt / Grain
Sugars made by malting or fermenting grains.
e.g. barley malt syrup, rice syrup
Molasses / Refinery
Byproducts of sugar refining, from dark molasses to lighter syrups.
e.g. molasses, treacle, refiner’s syrup
Families are practical label-reading groups; items grouped together are not necessarily chemically identical.
Start free. Upgrade when you need more.
Every scan gives you the full result. Pro removes the monthly limit and lets you keep a history.
Free
Everything you need to get started.
- 5 scans every month
- Recognises 274 names for sugar
- Results grouped into 7 sugar families
- Reads English, German, French, Spanish & Italian labels
- Crop & zoom before scanning
- See the raw text the app read
- 100% on-device — no account needed
Your 5 scans reset on the 1st of every month.
Sugar Decoder Pro
Unlimited scans and your own scan history.
- Everything in Free
- Unlimited scans
- Save scans to your history
- Add a label to each saved scan
- Keep up to 100 scans on your device
Prices in USD. Your local App Store or Google Play price is shown and charged in your own currency. Subscriptions auto-renew until cancelled and are managed through your App Store or Google Play account. Yearly saving compared with paying monthly.
Questions, answered.
What does Sugar Decoder actually do?
It reads the text on a food ingredient list and checks it against 274 names for sugar, built on The Blood Sugar Code reference. Every sugar name it recognises is highlighted and grouped into one of 7 families, so you can see at a glance how many different sugars a product contains.
How many free scans do I get?
5 full scans every calendar month, free. Your allowance resets automatically on the 1st. A scan only counts once it completes — cancelling a photo doesn't use one up.
What do I get with Sugar Decoder Pro?
Unlimited scans, plus the ability to save scans to your history with an optional label (for example “granola bars”), keeping up to 100 scans on your device.
How do I cancel my subscription?
Subscriptions auto-renew until cancelled and are managed entirely through your Apple App Store or Google Play account settings — not inside the app. Cancel any time before your renewal date and you won't be charged again.
Are my photos uploaded anywhere?
No. Text recognition and matching happen on your phone. Sugar Decoder doesn't upload your photos, doesn't need an account, and works offline.
Which languages can it read?
Scanning recognises ingredient names in English, German, French, Spanish and Italian, backed by official EU regulatory text and real product labels. The app's own menus are available in the same five languages.
Is this medical advice?
No. Sugar Decoder is an educational reference. A match doesn't tell you how much sugar a product contains, and a no-match result doesn't prove a product is sugar-free. Always check the original label and talk to a qualified healthcare professional about your diet.
Know what you're eating.
Download Sugar Decoder for iPhone and Android.
Educational reference only — not medical advice. A no-match result does not prove a product contains no sugar or sweetener.