Frequently asked questions

Yes. Core review generation is free and doesn't require an account. Any future add-ons will keep the base generator free.

Photos are sent to the AI briefly to generate the review, then discarded. Nothing is saved on our servers. Generated reviews and thumbnails live only in your browser's local storage — clear it and the history is gone.

No. Reviu doesn't collect personal information and never asks you to sign in. Everything runs in your browser.

You can pick Amazon, Instagram, YouTube, Naver, Coupang, Baemin, or a general tone. Each tone matches the culture and length that platform expects.

Choose short (~50–80 words), medium (~150–220 words), or long (~300–450 words). Pick short for quick shopping notes, long for blog posts.

Your browser is probably blocking camera access. Open the lock icon next to the URL and set Camera to Allow, then refresh. On iOS Safari, tap the 'AA' button and open Website Settings. You can also just tap 'Choose from gallery' to skip the camera entirely.

Yes — tap 'Rewrite' to get a fresh version with the same photo and settings. Change the rating, tone, or keywords for more variety.

Yes — treat it as a strong first draft. One or two lines from your actual experience make the review feel genuinely yours.

Google's multimodal Gemini, accessed through the Lovable AI Gateway.

Yes. Pick the Instagram tone and the AI includes 3–5 relevant hashtags automatically.

The most recent 20 reviews stay in your browser. Older entries are trimmed automatically. Copy anything you want to keep for longer into a notes app.

Yes — Reviu is designed mobile-first. Camera capture and gallery picking both work in mobile browsers, no app needed.

Tap Copy on the result, then paste into any review field: Amazon, Instagram, your blog, a forum — wherever you post.

It infers the product from visible text, logos, and packaging, but it isn't perfect. Double-check the product name in the draft before posting.

Sharp, well-lit photos give the sharpest results. Blurry or very dark shots make the analysis less accurate — reshoot when you can.

Only one photo per generation right now. Pick the most representative shot, or run multiple generations and combine the wording.

You currently pick from preset tones. Custom tones are on the roadmap — send feedback if there's one you want.

Tap Rewrite to try again with the same settings, or tweak the rating, tone, or keywords for a different angle.

Yes. Anything you put in the 'keywords' field is woven into the copy naturally. Three to five keywords tends to work best.

Most platforms accept 1,000+ characters. If yours is stricter, generate a Short version or trim to the strongest sentences.

Photos are processed briefly and not stored, but if a shot shows an address or phone number, mask it before uploading.

Not yet — we focus on the web so there's nothing to install. A native app is on the table if enough people ask.

Reviu keeps only the last 20 in your browser. Copy anything important into a notes app or cloud doc.

It works across categories — food, beauty, electronics, home goods. The AI adapts to whatever it sees in the photo.

Upload needs internet, and generation runs on our servers, so keep the tab open until you see the result. Typical generation takes 3–10 seconds.

You do. Reviu makes no claim on the text — edit and post freely.

Ads (AdSense) keep the service free. You aren't charged; ad revenue covers servers and AI usage.

Camera errors are usually a permission issue. Upload errors are usually the file being too large (>10MB) or a strange format — stick to JPG or PNG. Still broken? Clear the browser cache or try in a private window.

Yes — English and Korean are supported today. Use the language toggle in the top bar.

Photos of pure text, low-resolution scans, or abstract art can confuse the model. A straight-on product shot works best.

Reviu started as a small project to make honest product reviews easier for anyone to write — using AI as an assistant, not a replacement.