Everything for macro focus stacking, on iPhone. Here's how to get the best out of it.
Macro depth of field is razor-thin — at 2 cm only about a millimetre is sharp, so a single macro photo has one thin sliver in focus. StackFocus takes many shots at different focus depths and merges the sharpest parts of each into one photo that's sharp front to back.
Any iPhone with a macro-capable ultra-wide camera: iPhone 13 Pro and newer Pro models, iPhone 16/16 Plus, and the iPhone 17 line. 48 MP capture appears only on devices whose ultra-wide supports it (16 Pro and the 17 line); older devices stack beautifully at 12 MP. iPhone Air has no ultra-wide and isn't supported.
Get 2–5 cm close, brace your elbows or use a small tripod, use good light, keep still air for plants (and use Fast mode for bugs), and clean the lens. If a result has blurry patches, you had a gap in focus coverage — the app will offer to reshoot just the missing focus positions.
Aligning and blending dozens of high-resolution frames is heavy math — StackFocus runs it on the Neural Engine and GPU, right on your phone, with nothing uploaded. You can keep shooting the next stack while one processes; you'll get a notification when it's ready.
Capturing, stacking and editing are free forever. Your first three full-resolution, watermark-free exports are free too. After that, a single one-time $4.99 unlock removes the watermark and unlocks unlimited full-resolution JPEG/HEIF and 16-bit DNG export. No subscription, ever.
On a new device or after reinstalling, open Settings ▸ Restore Purchase in the app. Because the unlock is a one-time App Store purchase tied to your Apple ID (with Family Sharing), it restores instantly — no account or login needed.
Never. Everything happens on your device — there's no account, no server, and no analytics in the app. Finished stacks (and optionally the source frames) go to your photo library. You can delete a project's frames anytime from the in-app storage manager to reclaim space.