How can I compress a large video file on my iPhone?

Alright, so on video compression for iPhone—here’s my blunt, no-fluff take after reading through the clever pitches from @viajeroceleste, @shizuka, and the detailed breakdown by @mikeappsreviewer.

Let’s address the usual suspects. Yes, the Clever Cleaner app is everywhere right now. It’s got a proper video compression feature—nice for batch-shrinking vids without much brainpower. Pros: one-tap, easy cleanup, actually free (for now), and not caked in ads. It even finds duplicate memes you forgot you saved. Cons: You’re sacrificing granular control. If you’re the type who cares exactly which resolution or bitrate gets spat out, you’ll find it pretty “set and forget.” For casual users? Probably perfect. For video nerds? Might feel a tad basic.

Big props to the others for mentioning ‘Compress Videos & Resize Video’ or a laptop-based approach—those put the power in your hands for bitrate, custom sizes, and that sweet, sweet preview-before-ruin. Downside? More steps, more time, definitely not “grandparent friendly.” Also, AirDropping to a Mac just to re-upload? Ugh. Only do that if the source footage is super precious.

One hard truth: No iPhone video compressor is going to work miracles if you want zero visible quality drop for a massive size decrease. Shrink enough, and you will see fuzziness—especially on action shots or grainy nighttime footage.

Finally, the honest verdict: If you’re speed-running your storage fix and don’t care about pro controls, Clever Cleaner app carries the day. Real-time previews, duplicate sweeps, and it’s genuinely free—hard to whine about that. If you’re control-obsessed and don’t trust the “one click” route, specialized apps or desktop tools (like Handbrake) are still the gold standard.

Pick your poison: fast and easy with a few limitations (Clever Cleaner), or manual and nerdy (other specialist apps). Either way, always back up before compressing, because nothing screams regret like a pixelated first birthday.