Comparison

Previewly vs dioptify

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

Head to head
About

Previewly

Visualize how your vertical videos will appear on platforms like TikTok, Reels, and Shorts with realistic UI overlays and safe zone guides. Ensure your content, text, and calls-to-action are perfectly placed to avoid being cut off or hidden by platform interfaces.

Highlights
  • Real UI overlays for TikTok, Reels, Shorts, Snapchat
  • Platform-specific safe zone indicators
  • Instant cross-platform comparison
  • Mobile screen frame simulation
  • Crop, trim, and export optimized videos
  • Templates for trending styles
Features
Read full description

Previewly is the ultimate video preview tool for creators posting on TikTok, Instagram Reels, YouTube Shorts, and Snapchat. It helps you see how your vertical video will actually look in each platform’s interface - with real UI overlays, platform-specific safe zones, and mobile frame previews. Join 10,000+ Creators and professionals No more cut-off captions, blocked faces, or misplaced text. Previewly shows you exactly where likes, comments, and captions will appear, so you can make sure nothing important gets covered. Whether you're an influencer, a brand, or a content editor, this tool helps you preview your video layout before posting - and avoid costly publishing mistakes. Why creators love Previewly: • Preview videos with real UI overlays for TikTok, Instagram Reels, YouTube Shorts & Snapchat. • Safe zones that match each platform’s layout - prevent your text or subject from being hidden by buttons or avatars. • Switch between platforms instantly. Compare how the same video looks on each app. • Mobile screen frame simulation. Preview content the way your followers will actually see it. • Crop, trim, and export optimized videos with the right aspect ratio (9:16) and resolution. • Use templates for trending styles and mockups. • Optional AI layout checkers (coming soon) will warn you when key content is placed in risky areas. • Remove watermarks, save presets, and unlock more features with the PRO plan. Designed for: • TikTok creators and influencers who want maximum engagement • Instagram Reels content editors and social media managers • YouTube Shorts producers, marketers, and agencies • Snapchat storytellers who care about visual clarity • Brands, businesses, and small teams creating content in-house Use Previewly to: • Visualize your video layout before posting to any social platform • Align your face, captions, and calls-to-action in the visible zone • Avoid publishing errors like blocked subtitles or hidden graphics • Edit one video and instantly adapt it for TikTok, Reels, Shorts & more • Export your content in high-quality, platform-ready formats Backed by research Over 50% of creators experience layout issues when uploading vertical videos. On Reddit, Google, and professional forums, users frequently search for terms like “TikTok safe zone overlay”, “Reels UI preview”, and “how to avoid interface blocking.” Previewly solves this problem with a clean, mobile-friendly tool designed specifically for video creators and marketers. Stop guessing. Start previewing. Previewly saves you time, protects your content, and helps you post with confidence. Flexible pricing: Try Previewly free with 1 video per day Or unlock unlimited previews, all platforms, and premium export with PRO for just $2.99/month Not ready to subscribe? Buy tokens to preview a few videos at a time - easy, flexible, and affordable Monthly and Yearly plan Learn More • Terms of Use: https://bit.ly/4bqouvH • Privacy Policy: https://bit.ly/41FVyN0 Boost engagement. Save time. Improve results. If you post videos on TikTok, Instagram, YouTube Shorts, or Snapchat, Previewly is your must-have companion for smart video publishing

About

dioptify

Features
Read full description

Blur faces in photos, right on your iPhone. No upload, no cloud, no account. Dioptify detects faces automatically and anonymizes them with one tap: blur, pixelate, or bar, with adjustable strength. Save the result back to your photo library with all metadata stripped. HOW IT WORKS • Pick or take a photo • Faces are detected on-device (Apple Vision) • Choose style and strength: blur, pixelate, or bar • Save. EXIF and location data are removed YOUR PHOTOS STAY YOURS Everything runs on your iPhone. Dioptify has no server upload, no tracking, no analytics, no ads. That's why the App Store privacy label simply says: Data Not Collected. USE IT FOR • Sharing kids' photos without showing other faces • Schools, clubs, events • Real-estate and car sale photos • Accident and damage documentation • Journalism and research • Privacy-conscious social media posting FOR TEAMS Law firms, real-estate agencies, insurers, and public offices use Dioptify as a self-hosted solution with license-plate detection, batch processing, and EU AI Act marking on their own hardware. More at dioptify.com.

Screenshots

Previewly4 screens
dioptify3 screens

Verdict

The call

The clearest difference is in-app purchases: dioptify at none against Previewly's 2. dioptify also leads on ads (none vs shown). On price, device support and iOS requirement 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

Both are free to download. Previewly sells 2 in-app purchases, starting at $2.99 per month. dioptify asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Previewly versus dioptify: the parameters behind the verdict, then further details
ParameterPreviewlydioptify
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size32 MB1 MB
Age rating4+4+
DeveloperSD TrendsAdrian Peivareh

In-app purchases

2 purchases

Previewly

Subscriptions2
  • PRO Month$2.991 Month
  • PRO Year$24.991 Year
None

dioptify

No in-app purchases

Questions

Is Previewly free?
Previewly is free to download, with in-app purchases available.
Is dioptify free?
dioptify is free to download, with no in-app purchases.
Do Previewly or dioptify have ads?
Previewly shows ads; dioptify does not.

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