How to make a comparison video on iPhone
Product A vs product B, cheap vs expensive, tutorial vs attempt, last year vs today — comparisons are irresistible content because viewers judge for themselves. And a comparison only works when both options are on screen at the same time, which is exactly what a side-by-side collage does.
Step by step
Film both subjects the same way
Same angle, same distance, same lighting where possible. The more identical the shots, the more honest — and convincing — the comparison feels.
Import both clips
Open Video Grid Collage (free) and add the two videos. Comparing three or four options? Grid layouts hold up to 9.
Put them side by side
Left/right for vertical clips, top/bottom for horizontal. Keep both frames the same size so the comparison reads as fair.
Sync the action on the timeline
Trim both clips so the same phase happens simultaneously — pour at the same time, turn at the same time. Synchronized action is what makes viewers trust the test.
Label each side
Text layers over each frame: names, prices, versions. Clear labels save your comment section from asking "which is which?"
Pick the ratio and export
9:16 for TikTok, Reels and Shorts; 1:1 for feeds. Render in high quality and post.
Comparison ideas that get shared
- Price comparisons ($5 vs $50) are endlessly rewatchable — label the prices big.
- Technique comparisons: correct form vs common mistake, synced to the same tempo.
- Product tests: run both through the identical scenario in real time — no cuts, that's the credibility.
- Expectation vs reality: recipe photo in one frame, your attempt in the other.
Try it yourself — free
Video Grid Collage · 4.8 on the App Store · combine up to 9 videos in one frame