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Daystack stacks the videos and photos from your day into one 9:16 video, with every frame playing together, in sync.

Facts

DeveloperBurak Sakalli, an independent developer in the United Arab Emirates
PlatformiPhone, iOS 26 or later
PriceFree, with Daystack Pro as an optional upgrade (monthly, yearly or lifetime)
AvailabilityComing soon to the App Store
PrivacyNo account, no analytics, no ads. The App Store label is “Data Not Collected”.

About Daystack

Daystack turns the moments of a day into one vertical video. Pick one of eight layouts, from two rows to six, a grid, columns or one big frame over two, and fill it with up to six videos and photos. Every frame starts together and loops in sync, so a sunrise, a swim and a sunset play side by side.

Each clip can be trimmed, sped up or slowed down, muted, captioned and given one of ten looks named for the hours of the day, from Dawn to Midnight. Videos export in HD for free, or in 4K at 60 fps with Daystack Pro, ready for Instagram Reels, TikTok and YouTube Shorts.

Everything happens on the iPhone. Daystack has no account and no servers, and never uploads anyone’s videos.

Features

Eight layouts for up to six videos and photos
Every frame plays together, in sync, every loop
Trim, speed from 0.5× to 2×, sound on or off, and captions for each clip
Ten looks named for the time of day, with a strength slider
Video length that matches the longest clip, the shortest, or an exact time
Export in HD, or 4K at 60 fps with Pro, to Photos or any app
Projects save automatically, with undo and redo for every edit

Icon and screenshots

Free to use in articles and reviews about Daystack. Tap an image for the full-size file.

Export in 4K at 60 fps, with Daystack Pro.

For interviews, early access or a Pro code for review, email burak@buraksakalli.org.