# Slow Motion Video vs Protern Video

The clearest difference is in-app purchases: Protern Video at none against Slow Motion Video's 5. Protern Video also leads on update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Slow Motion Video sells 5 in-app purchases, starting at $7.99 per 7 days. Protern Video asks for nothing beyond the download.

Slow Motion Video ships an update monthly, Protern Video weekly. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Slow Motion Video | Protern Video |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (399 ratings)](https://appshunter.io/ios/app/slow-motion-video-slowmo/id1132396448/reviews)** | — |
| Number of ratings | **399** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Subscription | — |
| Size | 78 MB | 141 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Owen Schick](https://appshunter.io/developer/1533526203) | [Proskida](https://appshunter.io/developer/1584744490) |

## What reviewers say

### Slow Motion Video

[App page](https://appshunter.io/ios/app/slow-motion-video-slowmo/id1132396448)

Easily edit the speed of your videos to create slow motion or fast motion effects. Select videos from your library or record new ones, then use a simple slider to adjust playback speed for professional-looking clips. Share your creations directly to social media.

**Highlights:** Adjust video playback speed, Create slow motion effects, Create fast motion effects, Record new videos, Select videos from library, Share to social media

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock 1 Week Subscription | $7.99 | per 7 days |
| Unlock 1 Month Subscription | $14.99 | per month |
| Slow Down Videos 1 year | $29.99 | per year |
| Slow Down Videos 1 year | $39.99 | per year |
| Unlock TimeLine | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface
- ⚡ Effective video speed adjustment
- 💯 Quality output for slow motion/fast motion effects
- 🎬 Simple and straightforward editing process
- 😊 Free basic functionality available

**What reviewers complain about**

- 💰 Aggressive paywall for core features
- 📺 Excessive advertisements throughout app
- 🐢 Slow performance and lag issues
- 🎯 Limited control without premium subscription
- 🔄 Subscription model instead of one-time purchase

**Reported bugs**

- Export/save functionality freezes or fails
- Black screen with no audio during editing
- App crashes during video processing
- Glitches on initial use
- Choppy and laggy slow motion playback

**Requested features**

- One-time purchase option instead of subscription
- Ability to select specific video sections without paywall
- Reduced or optional advertisements
- Better video trimming controls
- Audio preservation in edited videos


### Protern Video

[App page](https://appshunter.io/ios/app/protern-video/id6472234294)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Slow Motion Video free?

Slow Motion Video is free to download, with in-app purchases available.

### Is Protern Video free?

Protern Video is free to download, with no in-app purchases.

### Do Slow Motion Video or Protern Video have ads?

Neither Slow Motion Video nor Protern Video shows ads.

### Which is updated more often, Slow Motion Video or Protern Video?

Slow Motion Video ships an update monthly, and Protern Video weekly. Most recently, Slow Motion Video was updated on October 24, 2026 and Protern Video on October 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*