Automatically backing up Android photos to a NAS removes dependency on Google Photos storage limits and keeps your originals on hardware you control. Three approaches work well depending on your NAS brand: the Synology DS Photo app (Synology-only, most polished), the QNAP Qfile app (QNAP-only), and the Immich mobile app (works on any NAS running Immich, cross-platform, no brand dependency). This guide covers all three, with configuration steps for background auto-upload and Wi-Fi-only transfer to avoid mobile data charges.
In short: For Synology: install DS Photo, connect to your NAS, enable Auto Upload. For QNAP: install Qfile, connect, enable Auto Upload. For any NAS with Immich running: install the Immich Android app, connect to your Immich server URL, enable backup. All three upload new photos automatically in the background when on Wi-Fi. Configuration takes under 5 minutes once your NAS is reachable from the phone.
Method 1: Synology DS Photo
DS Photo (and its successor Synology Photos) provides automatic photo backup to a Synology NAS. Available on Google Play for Android.
- Install DS Photo or Synology Photos from the Play Store
- Open the app and enter your NAS address. On the local network:
http://[NAS-IP]:5000. For remote access: your QuickConnect ID or custom domain - Log in with your DSM user credentials
- Go to Menu → Auto Upload
- Enable Auto Upload
- Select which device albums to upload (Camera, Screenshots, etc.). Most users select Camera only to avoid uploading app screenshots
- Enable Wi-Fi only to prevent uploads on mobile data
- Select the destination folder on your NAS (default:
/photo/Mobile/)
New photos are uploaded automatically in the background when your phone connects to Wi-Fi. The upload indicator appears in the Android notification tray during active uploads.
Method 2: QNAP Qfile
QNAP Qfile handles file access and automatic photo upload for QNAP NAS units.
- Install Qfile from Google Play
- Open Qfile and tap + to add a NAS. Enter your NAS IP or myQNAPcloud hostname and credentials
- Once connected, tap the Camera backup icon or go to Settings → Auto Upload
- Enable Auto Upload and select a target folder on the NAS
- Set to Wi-Fi only
- Select which device albums to include in the upload
Qfile uploads photos as originals preserving EXIF metadata. New photos upload within minutes of being taken when the phone is on Wi-Fi and Qfile has background app permissions enabled in Android settings. Check Android's battery optimisation settings. Some Android OEMs (Samsung, Xiaomi) aggressively kill background apps, which can prevent auto-upload from running. Add Qfile to the "don't optimise" list in Android battery settings if uploads are inconsistent.
Method 3: Immich (Any NAS)
If you have Immich installed on your NAS (via Docker. See the Immich setup guide), the Immich Android app provides the most feature-complete photo backup experience. Equivalent to Google Photos in terms of mobile-first design.
- Install Immich from Google Play
- Open the app and enter your Immich server URL (local:
http://[NAS-IP]:2283, remote: your configured HTTPS domain) - Log in with your Immich account
- Go to Profile → Backup
- Enable Backup
- Configure Wi-Fi only, charging only (optional), and which albums to include
Immich backs up all selected albums as originals. Unlike Qfile and DS Photo, Immich provides a full photo management UI. Browse, search, faces, albums. Not just a backup folder. If you want a self-hosted Google Photos replacement rather than just file backup, Immich is the superior experience.
Comparison: Which Method to Choose
Android Photo Backup Methods Compared
| Synology DS Photo | QNAP Qfile | Immich App | |
|---|---|---|---|
| NAS required | Synology only | QNAP only | Any NAS with Docker + Immich |
| Auto upload | Yes | Yes | Yes |
| Wi-Fi only option | Yes | Yes | Yes |
| Original quality | Yes | Yes | Yes |
| Photo browsing in app | Basic | Basic | Full. Google Photos style |
| Face recognition | No (use Moments on NAS) | No | Yes. AI-powered |
| Background reliability | Good | Moderate. May need battery exemption | Good |
| Setup complexity | Low | Low | Medium (requires Immich installed first) |
| App quality (Play Store rating) | Good | Mixed reviews | Excellent. Highly rated |
🇦🇺 Australian Users: Remote Backup Notes
When your phone is away from home, auto-upload continues via your NAS remote access connection. This requires your NAS to be reachable from the internet:
- Synology QuickConnect / DS Photo: QuickConnect handles remote access automatically via Synology's relay. Enable it under DSM → Control Panel → QuickConnect. Performance varies with your NBN upload speed and relay load
- QNAP myQNAPcloud: Same relay-based approach for Qfile remote access
- Immich: Requires you to configure remote HTTPS access independently (NGINX Proxy Manager + domain, or Cloudflare Tunnel). More setup, but generally better performance than vendor relay services
On mobile data (4G/5G), enable Wi-Fi only in the backup settings to prevent using mobile data for uploads. Photos taken while away from Wi-Fi are queued and upload when the phone connects to Wi-Fi again.
NBN upload speed caps remote upload speed. A typical batch of 20 photos (~50MB) uploads in under a minute on any NBN connection. The constraint is felt only when syncing large video files remotely.
Related reading: our NAS buyer's guide and our 3-2-1 backup guide.
Use our free Backup Storage Calculator to size your backup storage correctly.
Does Android photo backup to NAS replace Google Photos?
It can. The NAS backup preserves originals (full resolution, full quality) with no compression. For browsing and search, the experience depends on which method you use: DS Photo and Qfile provide basic folder-based browsing; Immich provides a Google Photos-equivalent experience with timeline view, face recognition, and smart search. The gap is sharing with non-NAS users. Google Photos sharing links are universally accessible, while Immich sharing links require the recipient to access your server. For a household that wants to reduce Google Photos dependency, NAS backup is a complete replacement. For sharing albums with people outside the household, Google Photos convenience is harder to match.
Will Android background backup work on Samsung phones?
Yes, but Samsung's Adaptive Battery feature aggressively restricts background app activity. For consistent auto-upload: go to Android Settings → Battery → Background usage limits (or Battery optimisation) → find the backup app (DS Photo, Qfile, or Immich) → set to Unrestricted. Without this, uploads may only run when the app is in the foreground. This is a Samsung-specific issue, not a NAS or app issue. The same adjustment applies to other background-running apps on Samsung devices.
Are originals preserved or compressed?
All three methods (DS Photo, Qfile, Immich) preserve original files. No compression or quality reduction is applied. Your 12MP JPEG, RAW, or HEIC file is uploaded exactly as captured. This differs from Google Photos' "Storage Saver" mode which compresses images to reduce cloud storage usage. With NAS backup, you are not paying per-GB for cloud storage, so there is no cost incentive to compress. Full originals are backed up by default.
Can I back up videos from Android to NAS as well?
Yes. All three methods upload videos from the Camera Roll alongside photos. Videos are large files. A 4K 60fps video of a few minutes is 1-3GB. Ensure your backup app is set to Wi-Fi only to avoid these uploads running on mobile data. Video upload speed on the local network is typically limited by the phone's Wi-Fi transfer rate (50-300Mbps on 802.11ac), so a 2GB video uploads in seconds to minutes on a local network connection.
What happens to photos already in Google Photos?
Existing Google Photos are not automatically moved to your NAS. You have two options: (1) export existing photos from Google Photos using Google Takeout and import them to your NAS manually, or (2) start fresh with NAS backup for new photos while keeping historical photos in Google Photos (using the free 15GB tier or a paid plan). For a complete migration, use Google Takeout → download all albums → copy files to your NAS → set up auto-upload for future photos. The Immich CLI can bulk-import a Takeout export efficiently.
Interested in a full Google Photos replacement with AI face recognition on your NAS? The Immich setup guide covers the complete Docker installation and mobile app configuration.
Immich Setup Guide →