On an iPhone 15 Pro or newer, Apple’s Clean Up tool removes unwanted objects entirely on the phone, so it works in airplane mode. Crops, filters, auto-enhance and after-the-fact portrait blur work offline on almost any phone. Generative edits that invent large areas of new picture, such as expanding a frame or replacing a sky from a text prompt, usually run on the phone maker’s servers and need a connection.
The line between the two moves with every OS update, so this guide shows you how to check any feature yourself.
Which photo AI features usually run on the phone? #
A rough rule: the more new pixels a feature has to invent, the more likely it runs in the cloud.
| Feature type | Usually works offline? | Notes |
|---|---|---|
| Auto-enhance, filters, light and color sliders | Yes | Runs on nearly every phone, AI or not |
| Portrait or depth blur after the shot | Yes | Uses depth data saved with the photo |
| Removing a small object | Often | Apple’s Clean Up is on-device |
| Filling or expanding large areas from a prompt | Often not | Heavier generative models tend to run on servers |
| Face restoration and “enhance old photo” apps | Varies | Many consumer enhancers upload the photo |
| Upscaling to higher resolution | Varies | Desktop tools can do it locally |
Treat the middle column as a starting guess. The only reliable answer comes from testing.
How to check whether an editing feature works offline #
This takes two minutes and works for any app.
- Make sure the photo is really on the phone. If you use iCloud Photos with “Optimize iPhone Storage,” or Google Photos backup with local copies deleted, the phone may only hold a small preview. Open the photo while online and let the full version load.
- Turn on airplane mode, and check Wi-Fi is off too. Airplane mode on its own can leave Wi-Fi connected.
- Try the feature. If it runs, the processing happened on the phone. If you see “requires an internet connection” or a spinner that never finishes, it’s a cloud feature.
- Read the privacy label. On the App Store look for “Photos or Videos” under data collected. On Google Play, check the Data safety section. That tells you what the app keeps, not just where it computes.
A feature that works offline can still upload later if the app syncs your library, so step 4 matters even when step 3 passes.
Apple’s Clean Up: what it needs and what it’s good at #
Clean Up lives in the Photos app’s edit screen. You tap or brush over a distraction, and the phone fills the gap. It’s part of Apple Intelligence, and Apple runs it on the device rather than in its Private Cloud Compute servers.
Requirements:
- An iPhone 15 Pro, 15 Pro Max, or any iPhone 16 or later. Older iPhones don’t get Apple Intelligence features.
- Apple Intelligence switched on in Settings. The first setup downloads the models, so do that on Wi-Fi.
Clean Up is a removal tool. It handles a stray person in the background, a trash can, or a power line well. Large objects, busy patterns, and anything that covers a face tend to leave smudgy fills. It won’t add anything new.
What about Android phones? #
Pixel and Galaxy phones both have eraser-style tools, and both also offer bigger generative edits. Samsung describes Galaxy AI as processing sensitive data locally and using its cloud selectively for heavier tasks. Which exact features stay local changes with model and software version, so run the airplane-mode test on your own phone before relying on one while traveling.
Many third-party Android and iPhone editors, including popular “AI enhance” apps, upload your photo to their servers for the AI step. If the app asks you to sign in or spend “credits” for an effect, assume it’s cloud-based.
Want heavy AI edits fully offline? Use a computer #
If you need generative fill, upscaling or face restoration without uploading anything, a desktop setup does it locally:
- Krita with the AI Diffusion plugin runs Stable Diffusion-style inpainting and generation on your own GPU. It’s free and open source, but setup takes some effort and you want a reasonably strong graphics card.
- Upscayl is a free, open-source upscaler that runs on your own machine.
These are the right tools for large edits. A phone can run the smaller models, but generative image editing still wants more memory and power than most phones spare.
When you need to understand a photo, not edit it #
Sometimes the job before editing is figuring out what’s in the picture: reading the small print on a sign, checking what a screenshot says, or describing a scene for alt text. That’s a different kind of AI, a vision language model, and it runs well on phones.
Personal LLM doesn’t edit photos. It answers questions about them offline. Every model in its catalog can take an image once you add the image-support file (195 MB to 1 GB, a one-time download), and the photo is processed on your phone’s own chip. You can snap a picture or pick one from your gallery and ask “what does this sign say?” or “write a one-line caption for this” in airplane mode.
For the camera-and-question workflow, see our guide to offline alternatives to Google Lens. For how phone models actually read images, read how multimodal AI works on a phone.
Why does it matter where your photos are processed? #
Photos carry more than faces. Screenshots hold messages and account numbers, and location data rides along in the file. When an edit runs in the cloud, the photo goes to a server under that company’s retention and review policies. When it runs on the phone, it doesn’t. We cover the broader trade-offs in what on-device AI is and why it matters for privacy.
Frequently asked questions #
Does Apple’s Clean Up tool work offline? #
Yes. Clean Up runs on the iPhone itself, so once Apple Intelligence is set up it works in airplane mode. It needs an iPhone 15 Pro or later, and the photo must be downloaded to the phone rather than stored only in iCloud.
Why do some AI photo edits need internet? #
Generative edits that create large new areas of an image use bigger models than most phones can run quickly. Companies run those models on their servers and send the result back. Simpler edits and small object removal fit on the phone.
Are my photos uploaded when I use AI editing? #
It depends on the feature and the app. On-device tools like Clean Up process the photo locally, while many generative tools and third-party enhancer apps send it to a server. The airplane-mode test and the app’s privacy label tell you which you’re using.
Can I remove objects from photos on an older iPhone? #
Not with Clean Up, which needs Apple Intelligence hardware. Third-party retouch apps offer object removal on older phones, but check whether they process offline. A desktop editor is another option for bigger jobs.