# ReAction: Slomo Fastmo Videos — Create multiple speed profiles > Edit videos with multiple speed changes and music synchronization. (iPhone/iPad app by muvee.) - Source: https://appshunter.io/ios/app/reaction-slomo-fastmo-videos/id979793293 (this page in markdown: same URL + `.md`) - Developer: [muvee](https://appshunter.io/developer/477962221) - Category: Photo & Video, Sports - Price: Free with in-app purchases - Rating: 2.30/5 from 3 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 8.1 · 32 MB - Languages: American English - Released: 2015-10-29 - Data updated: 2026-06-03 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/reaction-slomo-fastmo-videos/id979793293/reviews.md ## What is ReAction? Multiple Slo-mo and Fast-mo segments in a single video. Now you can use your GoPro and iPhone videos to make movie-trailer like fast and slow motion sequences! *FEATURES* • Professionally designed Speed Profiles • Set duration of each segment • Mix and match multiple slomo segments within a single clip • Add music; set start point to sync with the "money-shot" • Video trimmer included • Share your dramatic action on Facebook and YouTube directly. The ultimate brag-post! One Speed Profile is totally free (video will be watermarked) with additional Speed Profiles available as in-app purchases. *PROFILES* (See them all in action here: https://youtu.be/cTR5pSsbyQE) • Flat (Free): Your go-to profile for fast or slow motion sequences • The Freeze (In-App Purchase): Slow down instantly then speed back up gradually • The Backhand (In-App Purchase): Slow down instantly and speed back up quickly • The Bungee (In-App Purchase): Slow down gradually then speed up instantly • The Slam Dunk (In-App Purchase): Slow down quickly then speed up instantly *TIPS* • For most dramatic results, use the slomo videos from your iPhone • Even better: shoot high frame rate videos with action cams like GoPro or Sony Action Cams. You can now directly import via wifi into ReAction! If you like this app, rate us and tell your friends! If you don't, tell us why and what you will like to see in the next version: ReAction@muvee.com ## Key features - Multiple speed profiles - Set segment duration - Mix slomo and fastmo - Add and sync music - Video trimmer - Direct social sharing ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | The Freeze | $0.99 | one-time | | The Backhand | $0.99 | one-time | | The Bungee | $0.99 | one-time | | The Slam Dunk | $0.99 | one-time | | Remove Watermark & Credits | $0.99 | one-time | | All In-App Products | $4.99 | one-time | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/reaction-slomo-fastmo-videos/id979793293/reviews.md ### 1/5 — FUTILE *2018-07-27* This app is unequivocally useless! ### 5/5 — Works just as it should *2017-10-02* This app has a great interface and produces good-quality video. Love being able to speed up and slow down multiple times in the same video, native app from Apple should work like this! ### 5/5 — Rate *2016-12-12, version 2.6* Good ## Frequently asked questions about ReAction ### What is ReAction? ReAction allows you to create videos with multiple slow-motion and fast-motion segments. You can mix and match these speed profiles within a single clip and add music to synchronize with key moments. ### Does ReAction have ads? No, ReAction does not contain advertisements. The app is free to use with an option to purchase additional speed profiles. ### What devices does ReAction support? ReAction is available for iPhone, iPad, and iPod devices. ### How much does ReAction cost? ReAction is free to download and use. The 'Flat' speed profile is included for free, but watermarked. Additional speed profiles are available as in-app purchases. ### What is the age rating for ReAction? ReAction has an age rating of 4+, making it suitable for a wide range of users. ### How often is ReAction updated? The latest version, 2.7.1, was released on October 7, 2017. Updates provide new features and improvements to the application. ### What are the different speed profiles available in ReAction? ReAction offers a free 'Flat' profile. Paid profiles include 'The Freeze', 'The Backhand', 'The Bungee', and 'The Slam Dunk', each offering unique speed transition effects. ### Can I import videos from action cameras like GoPro into ReAction? Yes, ReAction supports direct import of videos from action cameras like GoPro and Sony Action Cams via Wi-Fi, allowing you to use your high frame rate footage. ## Version history (last 5 releases) ### 2.7.1 — 2017-10-07 This app has been updated by Apple to display the Apple Watch app icon. The export panel has been redesigned for a better user experience. ### 2.7.0 — 2017-09-18 The export panel has been redesigned for a better user experience. ### 2.6.1 — 2016-12-16 Improves support for adding videos from iCloud. Fixes issue with sharing long video to Facebook. ### 2.6 — 2016-11-08 All premium speed profiles are now free to preview! Export with premium profiles requires an in-app purchase. Some bug fixes ### 2.5.2 — 2016-10-10 Fixed an issue when exporting video. ## Apps similar to ReAction | App | Rating | Price | Category | | --- | --- | --- | --- | | [Speed Up Video ·](https://appshunter.io/ios/app/speed-up-video/id6618110765) | 4.8 (18) | Free | Photo & Video | | [Slow Motion - Slow Mo, Fast Mo](https://appshunter.io/ios/app/slow-motion-slow-mo-fast-mo/id6461720794) | 5.0 (8) | Free | Photo & Video | | [RSR BLE Remote for GoPro](https://appshunter.io/ios/app/rsr-ble-remote-for-gopro/id1625036730) | 1.0 (1) | Free | Photo & Video | | [Speed Range \| Video Editor](https://appshunter.io/ios/app/speed-range-video-editor/id6449210917) | 1.0 (1) | Free | Photo & Video | | [Slow Motion Video Speed Editor](https://appshunter.io/ios/app/slow-motion-video-speed-editor/id1593112074) | 4.6 (61) | Free | Photo & Video | | [Reverse Cam- Slow Motion Video](https://appshunter.io/ios/app/reverse-cam-slow-motion-video/id1486569379) | — | Free | Photo & Video | ## More apps by muvee - [ActionStudio-for GoPro videos](https://appshunter.io/ios/app/actionstudio-for-gopro-videos/id1076474905) All apps by muvee: https://appshunter.io/developer/477962221 ## Related topics [muvee](https://appshunter.io/ios/topics/muvee) --- *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 2026-06-03.*