Comparison

scallion vs Slo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

scallion

This app uses AI to compress photos and videos, freeing up device storage without sacrificing quality. Its intuitive interface makes it easy to select files, choose compression levels, and share your optimized media.

Highlights
  • AI-powered compression
  • Compress photos and videos
  • Adjustable compression levels
  • User-friendly interface
  • Direct sharing of compressed media
  • Save device space
Features
Read full description

With Scallion's advanced AI-powered compression algorithms, you can confidently compress your photos and videos while preserving their original quality. Say goodbye to bulky files eating up your device's storage space! Smart Compression with AI: Harnessing the power of Artificial Intelligence, Scallion intelligently analyzes and compresses your media files, ensuring optimal results every time. Let our AI algorithms do the heavy lifting while you enjoy high-quality, space-efficient media files. Easy to Use, Fast Results: Scallion's user-friendly interface makes the compression process a breeze. Simply select your media files, choose your desired compression level, and let Scallion handle the rest. Within moments, you'll have beautifully compressed media ready to share or store. Features: Compress photos and videos with ease AI-powered compression for optimal results Choose from various compression levels to suit your needs Intuitive interface for seamless user experience Share compressed media directly from the app Save space on your device without sacrificing significant quality Coming soon: Batch compression Image editing including cropping and filters Experience the Future of Media Compression with Scallion. Download now and unlock the full potential of your media library!

About

Slo

Adjust the playback speed of slow-motion videos without altering the original video file. This app allows you to modify multiple videos simultaneously, with changes automatically saved to your Photos app. You can easily revert to the original slow-motion segments by editing within the Photos app.

Highlights
  • Adjust slow-motion playback range
  • Batch processing for multiple videos
  • Non-destructive video editing
  • Automatic saving to Photos app
  • Restore original slow-motion segments
Features
Read full description

You can change multiple slow-motion videos at once. The adjusted videos are automatically updated in the Photos app. The actual slow-motion effect of the video is not deleted. The video file is not altered to lower the frame rate. Only the playback range of the slow-motion is adjusted, and you can restore the slow-motion segments anytime. Restore Slow-motion Bring the slow-motion back to videos you changed before. The app lists only slow-motion videos currently playing at normal speed, so you can select them and restore the original slow-motion in one batch. Share from Photos Select videos in the Photos app, tap Share, and choose Slo-mo-Remover. Pick Turn off or Restore, and the app processes all selected videos at once.

Screenshots

scallion4 screens
Slo4 screens

Verdict

The call

The clearest difference is price: Slo at Free against scallion's $2.99. scallion's advantage is rating (5.0 vs 3.0) and in-app purchases (none vs 1). On ratings volume, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Slo is free to download; scallion costs $2.99 up front. Slo sells 1 one-off in-app purchase. scallion asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

scallion holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

scallion ships an update every 2 days, Slo every 4 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
scallion versus Slo: the parameters behind the verdict, then further details
ParameterscallionSlo
Price$2.99Free — better
Rating5.0 (2 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings22
Update frequencyEvery 2 days — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.4 — better17.5
Further details — not scored
Size17 MB1 MB
Age rating4+4+
DeveloperJesse BenjaminJeongun Kim

Customer experience

scallion

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Slo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

scallion

No in-app purchases

1 purchases

Slo

One-time1
  • Remove Video limit$0.99

Questions

Is scallion free?
scallion costs $2.99, with no in-app purchases.
Is Slo free?
Slo is free to download, with in-app purchases available.
Which has better reviews, scallion or Slo?
scallion is rated higher. scallion averages 5.0 out of 5 from 2 ratings, while Slo averages 3.0 from 2 ratings.
Do scallion or Slo have ads?
Neither scallion nor Slo shows ads.
Which is updated more often, scallion or Slo?
scallion ships an update every 2 days, and Slo every 4 months. Most recently, scallion was updated on October 22, 2026 and Slo on October 24, 2026.

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