Stop overpaying
for your supplements.
GainsPrice compares the price of the same supplements across 12+ EU stores and finds the cheapest way to buy your entire basket — shipping costs included. Same products, lower total.
Free · No account needed · Barcodes scanned on-device for your privacy
CHEAPEST STORE FOR YOUR BASKET
See it in action
Four taps from search to savings
Scan or search a supplement, compare it across every store, and let GainsPrice build the cheapest basket.
EAN 5060469982083 · found in 6 stores
Illustrative app screens. Live prices and product photos come from our retail partners.
Simple by design
How it works
Scan or search a supplement
Scan a product's barcode (read on your device) or type a name with live suggestions. Build your monthly basket in seconds.
Compare the same product across stores
GainsPrice lines up the identical product at MyProtein, Body&Fit, Nutrimuscle, Optimum Nutrition and more — in your country and currency, price and shipping included.
Buy from the cheapest option — shipping included
Get the genuinely lowest total: one store, or a smart split across stores when that's cheaper. Free-shipping thresholds and promo codes are counted automatically.
What you get
Built for smarter supplement shopping
Everything you need to stop overpaying — every month.
Search or scan
Type a product name with live suggestions, or scan a barcode. Real product photos, in your language and currency.
Cheapest basket, shipping in
Add your monthly stack and we find the cheapest way to buy it — even splitting across stores when that's cheaper, with free-shipping thresholds and promo codes counted.
Cheapest or fastest
One toggle: optimize for the lowest price, or the quickest delivery. See exactly what speed costs.
Stack Auditor
Add the supplements you take and we flag overlaps (two products doing the same job) and anything overpriced per gram — so you cut waste.
Price history & alerts
See how a product's price has moved, and know when you're getting the lowest price we've tracked.
Price per gram of protein
The real value metric. A bigger tub often wins even at a higher sticker price — we do the math.
About GainsPrice
An honest price comparison for people who train
GainsPrice is a supplement price-comparison app. You scan or search a product — protein, creatine, pre-workout, vitamins — and we show you the same item across the EU stores you already use, with shipping and delivery time included, then build the cheapest way to buy your whole basket.
Why it exists
Supplements are bought on repeat, and prices swing wildly between stores once shipping and promotions are counted. Comparing it all by hand is tedious, so most people just overpay. We built GainsPrice to do that math instantly and put the savings back in your pocket — not the retailer's.
Independent & transparent
We're an independent platform — not owned by, or speaking for, any retailer or supplement brand. We earn an affiliate commission when you buy through some links, which keeps the app free. It never changes which store we rank cheapest: ranking is always the genuine lowest total cost to you.
Compares the stores you already use
We line up the same products across the EU supplement stores you already shop. Logos and brand names belong to their respective owners.
Independent & honest
On your side — not the stores'
GainsPrice is independent and built in France. We rank purely by the real total cost to you, so the traffic we send a retailer is high-intent, ready-to-buy shoppers.
Ranked by real total cost. We sort by price + shipping − promotions, so the genuinely cheapest store wins. No pay-to-rank, ever.
Every store, not just partners. We show retailers we earn nothing from alongside our partners — independence first.
Affiliate links keep it free. Some “Buy” links earn a small commission — never at extra cost to you, and never changing which store we rank cheapest.
Retailer & affiliate partnerships welcome — see our Affiliate Disclosure or get in touch below.
Good to know
Frequently asked questions
Is GainsPrice free?
Yes — GainsPrice is completely free, with no account required. We earn an affiliate commission when you buy through some store links, which never changes the price you pay or which store we rank as cheapest.
How does GainsPrice make money?
Through affiliate partnerships such as Awin and the Amazon Associates Program. When you buy through a link, the retailer may pay us a small commission. Commission never affects ranking — we always show the genuinely cheapest total cost to you. See our Affiliate Disclosure.
Where do the prices come from?
From official retailer affiliate feeds and public product-search data. Prices, shipping and promotions are estimates and can change, so always confirm the final price on the retailer's own website before buying.
Which countries are supported?
EU markets including France, Germany, Italy, Spain, the Netherlands, Belgium, Ireland, Portugal, Austria, Sweden, Poland and the UK — with local stores, currency and shipping.
Do you sell my data?
No. We never sell your data, show no ads, and use no cross-app tracking. Barcodes are read on your device and photos are never uploaded. Read our Privacy Policy.
Get early access
Be first to save with GainsPrice. We'll email you when we launch on iOS — one email, no spam.
By joining you agree to our Privacy Policy. Unsubscribe anytime.
Get in touch
Questions, partnerships or press?
We reply to every message — whether you're a user, a retailer, or an affiliate network reviewing GainsPrice.