Marwo: Real Photo, Protected

Wölfle-Apps

In-app purchases

About this app

Marwo protects your photos before they go online — and proves that they are real. The processing runs completely offline on your phone: no upload, no cloud, no account, no tracking, no ads.

✦ NEW: VISIBLE PROTECTION MARKS THAT SURVIVE EVERY UPLOAD

Instagram, Facebook & Co. strip the invisible metadata from your photo the moment you upload it — and with it every protection signal. That is why Marwo also puts visible symbol marks straight into the image:

🚫 Scraping — your visible stop sign against photo scrapers
✦ AI — the star symbol for AI-processed images, the way major tech platforms have established it for AI content

Together they appear as one discreet bar in the picture. What is written on the pixels, no platform can strip away.

🛡️ INVISIBLE PROTECTION INSIDE THE FILE

• Metadata gone: GPS location, camera model, capture date, serial number — the entire EXIF block is deleted.
• "No AI training" signal: into every processed image Marwo writes a machine-readable signal against text and data mining. It is always in there, whichever boxes you tick.
• AI labelling (optional): on request Marwo marks your image as "processed with AI" — following the provenance standard that image agencies use as well. Voluntary labelling, fit for the EU.

✅ PROOF OF AUTHENTICITY

Marwo embeds an invisible, hard-to-forge ownership stamp into your photo. With the built-in verifier you can show later that an image came from you — even if it was re-photographed or cropped. Including a proof PDF. Marwo only accepts genuine camera originals, no screenshots and no third-party images.

📁 YOUR PROOF SURVIVES A CHANGE OF PHONE

Marwo keeps a record for every photo you protect. You can save these records as a file and load them again on a new phone. If your device breaks or you buy a new one — your proof is still there.

🫥 ANONYMISE WITH ONE TAP

• Cover faces automatically (auto mode, Google ML Kit on the device)
• Licence plates, logos or other details: tap and pixelate them yourself

✨ AND EVERYTHING FOR YOUR LISTINGS — ONE APP INSTEAD OF FIVE

• Remove the background: white, studio grey, frosted glass, blur, spotlight
• Crop with zoom, made to fit every platform
• Colour boost, your own logo & name watermark (adjustable strength)
• One tap → every format for messengers, selling platforms (Kleinanzeigen, Vinted, eBay, mobile.de & Co.) and social media (Instagram, Facebook, TikTok, LinkedIn, Snapchat)
• 17 languages and country profiles for more than 50 countries — each with the local selling platforms of your country

💎 PAY FAIRLY: BUY ONCE, NO SUBSCRIPTION

The free version gives you the full protection for one photo per run. Marwo Premium (one-time purchase) unlocks batch processing with up to 5 photos and the "all formats at once" button. No subscription, no follow-up costs.

🔒 PRIVACY BY DESIGN

Your photos never leave the device — no image upload, no server of our own, no cloud, no tracking, no ads.

Note: face detection uses Google ML Kit and runs on the device. The invisible file signals work in the original; on platforms that remove metadata, the visible symbol marks stay.

What’s new

New: the proof-of-origin PDF now fits on a single page. Result, proof data, the checked image and the embedded marwo marks are laid out clearly on one sheet - previously it took two pages.