Shrink

100% on-device · No account · No uploads

Your videos,
up to 90% smaller.

One minute of 4K can eat over 400 MB, and a few trips and birthdays later “iPhone Storage Full” is back. Shrink re-encodes your camera roll right on your phone — every memory kept, at a fraction of the size, without a single frame leaving the device.

Download on the App Store See how it works

Three videos every week, free, forever. No watermark, ever. Requires iOS 17 or later.

−90% typical size on 4K clips
0 frames uploaded, ever
0 accounts or ads
The Shrink Reclaim screen: an iPhone storage bar showing 63.4 GB of video with 3.72 GB recoverable, and a list of videos with their before and after sizes — 812 MB to 54 MB, 1.24 GB to 38 MB, 644 MB to 43 MB.

See it work

Thirty seconds, start to finish.

A 4K clip straight off the camera, the compressed copy held up against it, the batch running, and the gigabytes at the end. No narration and no slides — just the app doing the thing.

Silent, 30 seconds, and a 1.6 MB download — down from 12 MB. It seemed rude not to.

The numbers

Same clip. Same phone screen. A tenth of the space.

birthday-4k.mov

812 MB → 54 MB

−93% · 4K HDR

prores-canyon.mov

1.24 GB → 38 MB

−97% · ProRes 4K

trip-coast.mov

644 MB → 43 MB

−93% · 4K 30

screen-rec-demo.mov

318 MB → 34 MB

−89% · Screen rec

Real rows from the app, at the default Balanced quality. How much you get back depends on what you shot — a 4K HDR clip has far more to give than something already compressed. You see the exact figure for your own videos before you commit to anything.

Quality

See the quality before you keep it.

Compression you cannot inspect is compression you have to trust. Shrink puts the compressed clip next to the original and plays them in sync, so you decide with your own eyes rather than on our word.

  • Side-by-side compare on every clip, with both players locked to the same frame.
  • Nothing is replaced until you say so. Keep both if you want.
  • Dates, locations and HDR survive the re-encode.
  • Three levels — Space Saver, Balanced, High Quality — and you pick. Balanced is the default forever.
The Review screen showing 3.56 GB ready, with six before-and-after rows, each with its own Compare button, and a note that compressed copies are saved while originals are still here.

Batches

Your whole camera roll, in one run.

Most compressors make you feed them one clip at a time, which is why nobody ever actually clears their storage. Shrink queues the lot and works through it.

  • Batch the entire roll — a running counter, a live percentage and a real time estimate.
  • Watch the gigabytes add up as each file lands.
  • If your iPhone gets warm, Shrink pauses itself instead of pushing through and cooking the battery.
  • Switch away and it keeps going for as long as iOS allows, then pauses cleanly and picks up exactly where it left off. Nothing is lost.
  • 4K, HDR, ProRes and long clips handled — no failing at 99%.
The Compressing screen: a progress ring at 22 percent, batch counter 2 of 7, 0.76 GB freed so far, and about 5 minutes left.

Privacy

Your videos never leave your phone.

Shrink compresses them on the iPhone itself. No frame, thumbnail or file name is sent anywhere, and neither is the location stored in a video. The app does send usage events to Google Analytics for Firebase, and installs and purchases to Meta so we can measure our ads. The privacy policy describes both.

  • Every frame is encoded on your device using Apple’s own hardware video encoder.
  • No account, no sign-up, no email. You open the app and it works.
  • No ads in the app. Meta gets your advertising identifier only if you allow tracking when the app asks.
  • Works in airplane mode — on a plane, in a tunnel, anywhere.
  • Your plan is verified on device, so nothing waits on a network.
Read the privacy policy
The first-run screen: everything happens on this phone, no uploads, no account, works in airplane mode; nothing is deleted without you; dates and locations stay put.

Restraint

What it refuses to touch.

Most compressors flatten anything you hand them. Shrink skips the clips that would come out worse than they went in, and tells you why on the row instead of quietly damaging them.

Skipped

Slo-mo

Re-encoding can flatten the slow-motion effect, leaving you with a clip that just plays oddly.

Skipped

Cinematic

Compression would discard the depth and focus data — the whole point of the mode.

Skipped

Live Photos

The photo and its video would come apart, and you would be left with neither.

Skipped

Spatial video

The second eye would be lost, and with it every reason you shot it that way.

It is your library, so it stays your call: open any skipped clip and choose “Compress it anyway”. You will get the honest warning first, not a silent surprise afterwards.

Triage

Find the biggest wins first.

You do not need to compress everything. You need to compress the eight files quietly holding twelve gigabytes, and Shrink opens on exactly those.

  • Your largest videos, sorted biggest first — the top of the list is the whole job.
  • Filter to what pays: over 100 MB, older than a year, or screen recordings.
  • Screen recordings are usually the easiest gigabyte you will ever get back.
  • A storage bar that shows the win before you start, not after.
  • Originals go to Recently Deleted, so there is always an undo.
The Done screen: you freed 3.56 GB, seven videos replaced with dates, locations and HDR intact, a lifetime total of 38.2 GB, and iCloud tier down one step.

Pricing

Like saving space? Pick a plan.

The core compressor is genuinely free — no watermark, no daily limit designed to make it useless. You get three videos every week, free, forever, and the count resets every Monday. If three a week is not enough, three fair ways to carry on, including one that cannot renew because it is not a subscription.

Free

$0

3 videos / week

Three videos every week, resetting each Monday. Not a trial that runs out. Background compression and alerts about new large videos come with a paid plan.

Commitment-free

One-Month Pass

$2.99

Once

30 days of Pro that expires by itself. It never auto-renews, so there is nothing to remember to cancel. Buy another whenever you need it.

Monthly

$2.09

Per month

Always covered, always monitoring — Shrink watches for new large videos and quietly nudges you. Cancel any time in your Apple account.

Lifetime

$9.49

Once

One payment, every future version. No renewal, no upgrade fee, no second thoughts.

Prices are US dollars; Apple sets the equivalent in your local currency and handles every payment. No $8-a-week subscription traps, and no “free trial” that charges you on day three. A running batch always finishes, even if your Pass expires mid-job.

Questions

The things people ask first.

Will I be able to see the quality loss?
On a phone screen, at Balanced, almost certainly not — which is exactly why the app makes you check rather than telling you so. Every clip gets a side-by-side compare against its original before anything is replaced, and if you are not happy you keep the original and move on. Video compression is lossy by definition, so if a clip is headed for professional colour work, keep the original.
Do my original videos get deleted?
Only when you choose to replace them, and even then iOS puts the originals in Recently Deleted for 30 days. You can also keep both copies. Nothing is removed without an explicit tap from you.
Why has my storage number not gone down yet?
Because iOS holds deleted originals in Recently Deleted for 30 days, and that space is still counted against you until the album empties. Empty it yourself and the number moves immediately — the app links you straight there and explains it on the spot.
Does anything get uploaded to a server?
Shrink never uploads your videos. Not a frame, not a thumbnail, not a file name, and not the location stored in a video. The app does send usage events to Google Analytics for Firebase, such as which screens you open and how many videos a batch compressed, with a random ID that is not linked to your identity. Once per install it also asks Apple whether the install came from an Apple Ads ad, and it tells Meta about installs and purchases so we can see which of our Facebook and Instagram ads work. Meta gets your advertising identifier only if you allow tracking. It works fully in airplane mode and holds the events on the phone until there is a connection. Purchases go through Apple. The privacy policy has the details.
Can I keep using my phone while it compresses?
Yes. On iOS 26 and later, a paid plan keeps a batch compressing after you switch apps or lock the phone, and its progress shows on the Lock Screen. On the free plan and on earlier versions, Shrink keeps encoding for as long as iOS allows a background app to hold the encoder, shows progress in a notification, and then pauses cleanly rather than dying halfway. Come back, tap Resume, and it carries on — nothing already compressed is thrown away. If the phone gets warm, it pauses itself until things cool down.
Which iPhones does it work on?
Any iPhone running iOS 17 or later. Compression uses the hardware video encoder built into the chip, so newer phones simply get through a batch faster.
What exactly do I get for free?
Three videos every week with the core app — batch compression, side-by-side compare, all three quality levels, no watermark, no size cap and no limit on how big those three videos are. The count resets every Monday, on a fixed calendar week rather than seven days from whenever you started, so you always know when it comes back. It does not expire, it never asks for a card, and nothing charges you on day three. Background compression and alerts about new large videos come with a paid plan. If three a week is not enough — a pre-holiday clear-out, a phone that is completely full — that is what the paid plans are for.
Is the One-Month Pass really not a subscription?
Correct. It is a non-renewing purchase: it gives you 30 days and then stops, on its own, with no charge on day 31 and nothing sitting in your Apple account waiting to bill you. If you want it again, you buy it again. The Monthly plan is a normal auto-renewing subscription and is clearly labelled as one.

Storage full? Don’t delete
your memories — shrink them.

Get your gigabytes back without renting them from the cloud, and without handing your camera roll to anyone.

Download on the App Store

Three free videos every week. iPhone, iOS 17 or later.