Compress Photos
Smarter with AI
Shrink iPhone photos by up to 80% using on-device AI — no uploads, no compromise, no clutter. Your photos never leave your device.
Free · 1 compression/day · Upgrade for unlimited
Shrink iPhone photos by up to 80% using on-device AI — no uploads, no compromise, no clutter. Your photos never leave your device.
Free · 1 compression/day · Upgrade for unlimited
Three taps. Smaller photos. Zero effort.
Select any image from your photo library — JPEG, PNG, or HEIC.
On-device AI analyses the image and finds the perfect quality-to-size ratio in seconds.
Your compressed photo is saved back to your library. See exactly how much space you saved.
Drag the slider to compare file sizes. Same visual quality — a fraction of the storage.
← Drag to compare →
Built for iPhone. Designed for simplicity. Powered by AI.
Smart per-image analysis finds the ideal balance between quality and file size.
Your photos never leave your iPhone. No servers, no cloud, no accounts.
See exactly how much space you saved — percentage, megabytes, everything.
High, Medium, or Low — choose the right balance for your use case.
Browse all your compressed images in a beautiful Photos-style grid.
Input or output in JPEG, PNG, or HEIC — your choice every time.
Everything you need to know about compressing images on iPhone with Pisoni.
Pisoni uses on-device AI to analyse each photo individually and find the optimal compression parameters — reducing file size without visible quality loss. All processing happens directly on your iPhone using Apple's Neural Engine. No image is ever sent to a server.
Never. Pisoni is 100% on-device. Your photos are compressed locally using AI running directly on your iPhone. Nothing is sent to any server — ever. Pisoni requires no internet connection to function.
Pisoni supports JPEG, PNG, and HEIC — the formats natively used by iPhone cameras. You can also choose your preferred output format when saving the compressed image, so you always get the right file for your needs.
Depending on the image and quality preset you choose, Pisoni can reduce file sizes by up to 80%. A typical 10 MB iPhone photo can drop to 2 MB or less with no visible quality difference at normal viewing sizes.
Yes — Pisoni is free to download. The free tier includes one compression per day. Upgrade to Pisoni Pro for unlimited compressions, access to all quality presets, and no daily limits.
Yes. Photos taken on iPhone quietly carry a lot of hidden information — where the photo was taken, when, what camera settings were used, and more. Pisoni can strip all of that out when compressing, so what you share is just the image, nothing else.
Open Pisoni and tap the Compress tab. Tap the photo picker to select an image from your library. Choose a quality preset (High, Medium, or Low). Tap Compress — and in seconds, your compressed photo is ready to save directly to your photo library.
Free to download. No account needed. Your photos stay on your device.
Download on the App StoreRequires iOS 26 or later