Got a question?
You'll find answers to the most common questions here. If nothing works, drop us a line.
Sign-up, access, payment.
How do I create an account?
Sign-up takes 90 seconds with email, Google or Apple. You can also try the app as a guest first from the welcome screen, then convert your account later without losing anything.
What does ZymFit Pro include?
Unlimited barcode scans, up to 10 photo analyses per day, streak freeze (2 protected days per month), Pro Insights (30-day analyses), custom macro targets, full history and data export. €4.99/month or €29.99/year, with a 7-day free trial.
Can I switch from monthly to yearly?
Yes, anytime from App Store > Subscriptions (iOS) or Play Store > Payments (Android). The change is handled by the store and prorated over your current period.
How do I cancel my subscription?
From App Store > Subscriptions (iOS) or Play Store > Payments (Android). Pro access stays active until the end of the period you've already paid for.
How do I delete my account?
Settings > Account > Delete my account. A 30-day recovery window, then all your data is permanently deleted.
Can I change the app language?
Yes. Settings > Language. ZymFit is available in French, English, Spanish, Portuguese, German, Italian and Dutch.
The score, the photo, the portions.
The photo scan gives me weird macros
The AI can get composed dishes or sauces wrong. Every detected food is editable: tap it to adjust the quantity, delete a line or add what's missing — totals recalculate live.
A product doesn't show up when I scan it?
It happens with recent or local products. The code is placed in a private queue and you can attach photos of the product or label. No AI analyzes them automatically, and the product only enters the catalogue after a manual review.
I don't have a kitchen scale — how do I enter quantities?
Use everyday portions: “1 egg · 50 g”, “1 glass · 200 ml”, “1 tablespoon”… Liquids are counted in milliliters automatically. A rough portion logged beats a meal not logged at all.
How do I log my home-cooked meals?
Two options: photograph the dish (the AI breaks it into adjustable foods), or build it once in the journal and save it as a meal — it then replays in one tap.
Does analysis quality change with Pro?
No. The scoring engine and the photo AI are identical for everyone. Only the limits change: 5 photo analyses per week free, up to 10 per day with Pro.
Are halal and diets taken into account?
Yes. Declare your diet (vegetarian, vegan, pescatarian) and halal mode in the settings: every scan flags an incompatibility at the top of the product page — pork, alcohol or gelatin for halal — before the score even appears. Your allergens (the 14 EU-regulated ones) are monitored the same way.
Your flame, day after day.
How does the streak work?
A day is validated as soon as you take ONE nutrition action: logging a meal, scanning a product, tracking your water or weighing in. It's computed on your local date — no need to do everything, one action is enough.
What is the streak freeze?
Pro's protection for your flame: if you miss a day, it's frozen automatically — up to 2 days per calendar month. Frozen days show up with a snowflake in your calendar. Without Pro, a missed day resets the streak to zero.
My streak broke even though I logged
Check your time zone in the settings: the streak is computed on your local date. For a meal to count, it must be marked as “eaten”. And if you're on Pro, check your calendar: the freeze may have already covered the missed day.
What are streak badges for?
Every milestone (3 days, 1 week, 1 month… up to 5 years) unlocks a badge. It's cosmetic — no impact on your nutrition score, just proof of your consistency.
How do I share my streak?
Tap the flame in the journal, then your streak card: the Share button generates a vertical image ready for stories.
Does a badly scored meal break my streak?
No, never. The streak rewards consistent tracking, not a perfect plate. A 25/100 meal logged beats a perfect meal never logged.
GDPR, hosting, sharing.
Is my data sold?
No, never. No reselling, no targeted ads. Our revenue comes solely from the ZymFit Pro subscription.
Where is my data stored?
In the European Union (Supabase, EU region), in compliance with the GDPR.
How do I export my data?
Settings > Account > Export: a complete JSON file (meals, weight, hydration, products), included with Pro. Without Pro, the GDPR copy by email stays free for everyone.
Can I request a full copy of my data?
Yes. Under the GDPR, write to support@zymfit.app for a full access request — free, with a reply within 30 days.
Offline, multi-device, notifs.
Does the app work offline?
Browsing (today's meals, recent products, pages already scanned) works offline. Scans and additions sync automatically once the connection returns.
How many devices can be connected?
Unlimited. The same account on iOS, Android and web at the same time, with data synced in real time.
Does the step counter work on Android?
Yes, via Health Connect (Android 14+). On iOS, via HealthKit.
Why aren't my notifications arriving?
1) Check the permission in your system settings. 2) Then Settings > Notifications in the app — water reminders, streak-in-danger alerts and weigh-in reminders live there. 3) If nothing changes, restart the app.
Write to us.
We reply within 24h on weekdays. For Pro subscribers, within 12h. Support in French, English, Spanish, Portuguese, German.