Photos are the one thing on a phone that cannot be re-downloaded. Apps, music and chat history can all be rebuilt. So the rules matter more than the storage tier, and most families buy the tier and skip the rules.
Pick one library of record
Two services syncing the same camera roll in both directions is how people end up with 40,000 duplicates and a deletion that takes three days to propagate. Choose one master, and treat the other as an export target.
- All-Apple household: iCloud Photos. iCloud+ 200 GB is US$2.99 a month at the time of writing, 2 TB is US$9.99, and the free 5 GB will not hold one year of a family’s photos.
- Mixed devices: Google Photos with Google One. 200 GB is US$2.99, 2 TB is US$9.99, and the free 15 GB is shared with Gmail and Drive.
- Neither, if the library is under 20 GB: a portable SSD plus a yearly export is cheaper and much faster to restore. A 2 TB drive runs about US$90–130.
Confirm the master is actually uploading before trusting it. iCloud Photos shows a pause reason under Settings → Photos when the phone is low on space; Google Photos shows “Backup complete” under the profile icon. A library stuck at 60% for a week is usually a full phone, not a slow network.
Settle sharing before the upload finishes
Sharing decisions are painful to reverse once 30,000 photos sit in the wrong library.
On iOS 16 and later, Settings → Photos → Shared Library lets one library be shared with up to five other people. The automatic rule adds photos taken near those people or containing them, which is convenient and slightly alarming; the manual option means you pick. Decide before you invite anyone, because changing your mind later re-sorts the whole library.
Google’s two features are different in kind. Partner sharing is one-way: your partner sees new photos, nothing is copied, and their quota is untouched. Shared albums are the ones people mistake for backups — they are downscaled to 2048 pixels on the long edge, so a shared album is a slideshow, not an archive. iCloud shared albums behave the same way, and the reason they cost nothing against your storage is precisely that they are not originals. The piece on using shared albums with family covers the practical side of that split.
Do the arithmetic on your shooting rate
Storage tiers only make sense against a number. A 12 MP HEIC photo is about 2 MB. A 48 MP ProRAW shot from a recent iPhone is 60–80 MB. Video is the real cost: 1080p at 30 fps runs roughly 200 MB a minute, and 4K at 60 fps about 400 MB.
A family of four taking 150 photos a week lands near 300 MB a week, or 1.3 GB a month. That is 15 GB a year, and 200 GB would last a decade. Add ten minutes of video a week and the same 200 GB is gone in under two years. If the phone is set to 4K/60, you are on the video curve whether or not you think of yourself as a video person — and the fixes in freeing up photo space without deleting memories buy time without shrinking the archive.
Name folders by year and month
Event names mean nothing in 2031. Use 2026/2026-07-July and drop every export into it.
- Mac, Photos app: select the month, then File → Export → Export Unmodified Original, which keeps the HEIC and its EXIF date intact.
- Google Takeout: takeout.google.com, deselect all, choose Photos, pick .zip and a 10 GB archive size, then download the parts. Big libraries take hours to days to appear.
Keep two years on the device and archive the rest to the drive. The ordering matters more than the format: a decade of year/month folders restores into any app, while a decade of camera-roll dumps does not.
Test a restore once a year
An untested backup is a hope. Once a year, pull ten random originals back down, open them, and check that the file date matches the day they were taken. If a file opens as a 2048-pixel thumbnail, you have been backing up shared albums rather than originals.
Then check the setting that catches people out. Optimize iPhone Storage keeps only previews on the phone and leaves the originals in iCloud, which is fine while the subscription is paid and catastrophic if it lapses with no local copy — the rule is that at least one device or drive holds full-size originals. Apple’s iCloud Photos setup guide explains the download-originals option, and the iPhone backup checklist covers the rest of the phone. Last, switch off the sources that quietly fill the library: WhatsApp → Settings → Chats → Save to Photos off, plus a monthly pass over screenshots.