# FlowFrame: Frame Interpolation — Smooth 60fps, 120fps & slow-mo

> Smooth 60fps, 120fps & slow-mo (iPhone/iPad app by Hiroki Sugiyama.)

- Source: https://appshunter.io/ios/app/flowframe-frame-interpolation/id6807647941 (this page in markdown: same URL + `.md`)
- Developer: [Hiroki Sugiyama](https://appshunter.io/developer/6778858327)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 48 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, European Spanish
- Released: 2026-10-29
- Data updated: 2026-11-01

## What is FlowFrame?

Turn choppy video into buttery-smooth motion — with one tap.

FlowFrame uses AI frame interpolation to draw the frames your video is missing, turning it into smooth 60fps / 120fps footage or 2x / 4x slow motion. Everything runs on your iPhone. Your videos are never uploaded.

GREAT FOR
• Choppy gameplay captures and anime clips
• Pets, kids, dance and sports — add slow motion after the fact
• 30fps footage that deserves to look great on a 120Hz display
• A final polish before posting to social media

THREE SIMPLE STEPS
1. Pick a video (Photos or the Files app)
2. Choose 60fps, 120fps or a slow-motion factor — FlowFrame shows the resulting fps, duration and frame count up front
3. Tap "Make it smooth" (progress and time remaining shown; cancel anytime)
Then compare Before / After / Split slider, and save to Photos or share.

WHY FLOWFRAME
• 100% on-device — no uploads, no account, works offline
• On iOS 26 and later, Apple's latest frame-rate conversion technology delivers higher quality and speed
• HDR stays HDR — brightness and color don't shift (converted to SDR on some devices)
• No watermark — not even on the free version
• Your original is never touched — a new video is added to Photos only when you save
• If a video can't be converted, FlowFrame tells you why (unsupported format, low memory, low storage…)

FREE
• Convert the first 10 seconds of any video (longer clips are trimmed so you can try it)
• 60fps output, up to 1080p
• Slow-motion (2x / 4x) preview
• Before/after comparison and saving to Photos

PRO — ONE-TIME PURCHASE, NO SUBSCRIPTION
• No length limit — convert to the very last second
• 120fps output
• Save and share slow motion (2x / 4x)
• Output up to 4K
• High-quality export (more accurate in-between frames + higher bitrate)
Buy once, keep forever. PRO is tied to your Apple ID and can be restored on a new device.

COMPATIBILITY
• iOS 16.4 or later
• Input: videos from Photos or the Files app (MOV / MP4, etc.)
• Output: 60fps / 120fps, 480p–4K, HEVC (H.265)

PLEASE NOTE
• Frame interpolation estimates motion, so fast or complex scenes may show some ghosting or warping
• 4K and long videos take time. Keep the app open and the screen on while converting

Questions or ideas? Use "Contact" in the app.

Terms of Use: https://sh-1101.github.io/flowframe/terms.html
Privacy Policy: https://sh-1101.github.io/flowframe/privacy.html

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PRO (one-time) | $9.99 | one-time |


## Is FlowFrame safe?

Not enough ratings yet to assess FlowFrame.

## Is FlowFrame legit?

FlowFrame: Frame Interpolation appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for FlowFrame is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-10-30

No release notes.

## More apps by Hiroki Sugiyama

- [FormSync: Swing & Form Compare](https://appshunter.io/ios/app/formsync-swing-and-form-compare/id6779924474)
- [Privexa: EXIF & GPS Remover](https://appshunter.io/ios/app/privexa-exif-and-gps-remover/id6782251439)
- [Rewindo - Reverse Video Maker](https://appshunter.io/ios/app/rewindo-reverse-video-maker/id6807332854)
- [Twin Calc: Two Calculators](https://appshunter.io/ios/app/twin-calc-two-calculators/id6807615879)

All apps by Hiroki Sugiyama: https://appshunter.io/developer/6778858327

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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 2026-11-01.*