What more Mac storage actually costs, three ways
Paying iCloud monthly, buying a drive once, or reclaiming what you have. The prices are public, the trade-offs are not, and one of the three is free.
A full Mac has three answers, and every page about it recommends one without pricing the others. Here they are together.
What each one costs over three years
| Option | Cost | What you get |
|---|---|---|
| Reclaiming what you have | Nothing | Usually 20 to 100 GB, and it is space on the internal disk |
| iCloud+ 200 GB | $35.88 a year, $107.64 over three | Offsite, synced across devices, needs a network |
| iCloud+ 2 TB | $119.88 a year, $359.64 over three | The same, at scale |
| An external drive | One payment, then nothing | Local, fast, and not a backup |
The arithmetic is not subtle. A 2 TB external drive costs less than a single year of iCloud+ 2 TB at most current prices, and it keeps costing nothing after that.
Which is why the arithmetic is the wrong way to decide
iCloud is not a cheaper drive, and comparing them on price per gigabyte misses what you are actually buying.
| iCloud+ | External drive | |
|---|---|---|
| Survives the Mac being stolen | Yes | No, if it was in the same bag |
| Survives its own failure | Yes | No, unless separately backed up |
| Works with no network | No | Yes |
| Available on your phone | Yes | No |
| Cost after year three | Continues | Nothing |
A drive is storage. iCloud is storage plus an offsite copy plus sync. If you only compare the first of those three, iCloud always looks expensive.
Who should pick which
Pick iCloud if
Your problem is a photo library you want on every device, you are usually online, and you have no backup habit. The offsite copy is worth the subscription on its own, and Optimise Mac Storage is the least effortful way to free space that exists. See what the recommendations actually do.
Pick a drive if
The large things are video, exports or finished projects, you want them fast and offline, and you are willing to back the drive up. Moving files to an external drive covers doing it without losing anything.
Pick neither if
You have not yet looked at what is filling the disk. This is the common case and it is worth being blunt about: on most Macs a large share of the used space is caches, build output, old device backups and duplicates, and none of that is worth paying to store anywhere.
- Old iPhone backups, 30 to 60 GB each, for phones nobody owns
- Build output and dependency folders, which regenerate
- Snapshots the system is holding, which release for free
Paying a subscription to store files you would delete if you could see them is the most expensive of the three options, and it is the one people arrive at first.
The honest order
- Look at what is on the disk. It costs nothing and it frequently ends the problem.
- Move what is genuinely large and genuinely yours to a drive, and back that drive up.
- Subscribe for what has to be synced and offsite, which for most people is photos and nothing else.
Common questions
Is iCloud storage worth it, or should I buy an external drive?
They are not the same product. A drive is storage; iCloud is storage plus an offsite copy plus sync across devices. On price alone a drive wins easily, often costing less than one year of the equivalent iCloud tier. On protection against theft or drive failure, iCloud wins.
What is the cheapest way to get more storage on a Mac?
Reclaiming what you already have, which costs nothing. On most Macs a large share of the used space is caches, build output, old device backups and duplicates. Paying to store files you would delete if you could see them is the most expensive option.
How much does iCloud+ cost?
Checked on 6 September 2026 in US dollars: 5 GB free, then 50 GB at $0.99 a month, 200 GB at $2.99, 2 TB at $9.99, 6 TB at $29.99 and 12 TB at $59.99. Prices vary by country. At 200 GB that is $35.88 a year, and it continues for as long as you keep the files there.