# TrailStack — Strobe Photo from Any Video

> Strobe Photo from Any Video (iPhone/iPad app by Hitoshi Tamura.)

- Source: https://appshunter.io/ios/app/trailstack/id6758320260 (this page in markdown: same URL + `.md`)
- Developer: [Hitoshi Tamura](https://appshunter.io/developer/1870454290)
- Category: Photo & Video, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 35 MB
- Languages: American English
- Released: 2026-02-03
- Data updated: 2026-05-20
- User reviews in markdown: https://appshunter.io/ios/app/trailstack/id6758320260/reviews.md

## What is TrailStack?

Turn any video into a stunning strobe photo — right on your iPhone device.

TrailStack stacks multiple frames from your video into one composite image, creating the classic strobe effect used by sports photographers, coaches, and creative artists. No cloud upload. No subscription. No Photoshop skills required.


HOW IT WORKS

1. Pick any video from your camera roll
2. Adjust Trim, Interval, Sensitivity, Fade, and Cleanup sliders
3. See results instantly in the real-time preview
4. Export a crisp PNG at your video's original resolution to your Photos


KEY FEATURES

• Import any existing video — no in-app recording required
• Real-time preview as you adjust every parameter
• 4 built-in presets: Default, Sport, Art, Sharp
• Supports slow-motion video for ultra-detailed motion analysis
• Export at original video resolution PNG (up to 1920px on the longest side)
• 100% on-device processing — your videos never leave your phone
• Free to use, with an optional ad to remove the watermark from exports


PERFECT FOR

• Athletes & coaches — analyze a golf swing, tennis serve, or gymnastics routine
• Skateboarders & BMX riders — capture trick sequences in one frame
• Dancers & performers — visualize choreography and movement flow
• Physics & science teachers — demonstrate motion and velocity visually
• Social media creators — create eye-catching composite sports photos


WHY TRAILSTACK?

Other strobe photo apps require you to record video inside the app — TrailStack works with footage you already have. Sony MotionShot was discontinued in 2021. Clipstro is iOS-only and cannot import existing videos. Photoshop can achieve similar results, but takes 30–60 minutes of manual work per photo.

TrailStack does it in seconds.


PRIVACY FIRST

All processing happens entirely on your device. We never upload, store, or transmit your photos or videos to any server. What's on your phone stays on your phone.


FREE & FAIR

TrailStack is free to download and use. Exports include a small watermark. Watch a short optional ad to save a watermark-free version at any time — no subscription, no hidden fees.

Download TrailStack and see your movement in a whole new way.


## Version history (last 4 releases)

### 1.1.2 — 2026-03-03

- Improved app stability and security                                                                                                                                                                                         
- Performance optimizations

### 1.1.1 — 2026-03-02

• Watermark-free saves — watch a short optional ad to export your image without a watermark.
• Faster processing — frame extraction is significantly quicker across all video types.
• Improved Japanese support — text and labels are now more natural for Japanese users.
• Privacy policy and Terms of Service updated for greater transparency.

### 1.1.0 — 2026-02-05

What's New in Version 1.1.0

• Watermark — Exported images now include a subtle "TrailStack" watermark
• Version Display — App version is now shown at the bottom of the home screen

### 1.0 — 2026-02-04

No release notes.

## More apps by Hitoshi Tamura

- [Muzzle Puzzle for Cat lovers](https://appshunter.io/ios/app/muzzle-puzzle-for-cat-lovers/id6758032502)
- [OneNext](https://appshunter.io/ios/app/onenext/id6758542802)
- [Cat Expert Academy](https://appshunter.io/ios/app/cat-expert-academy/id6758578259)
- [MaintainAll](https://appshunter.io/ios/app/maintainall/id6759273040)
- [PriceHop](https://appshunter.io/ios/app/pricehop/id6759319350)

All apps by Hitoshi Tamura: https://appshunter.io/developer/1870454290

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-20.*