Comparison

Post Borders vs Carousel AI

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

Head to head
About

Post Borders

This app helps you maintain a consistent look on social media by adding borders to your photos. It prevents unwanted cropping when posting multiple images with different aspect ratios, ensuring your entire photo is visible.

Highlights
  • Preserve full photos without cropping
  • Uniform aspect ratios (1:1, 4:5, 1.91:1, 9:16)
  • Batch processing up to 10 images
  • Customizable border colors
  • Easy-to-use interface
  • Consistent and professional feed appearance
Features
Read full description

Instagram crops your photos. Post Borders makes sure it can't. Add clean borders that fit any photo to any ratio — so your full photo posts exactly as you shot it. No trimming, no surprises, no lost edges. LIVE PREVIEW See every change instantly. Swipe between photos, switch ratios, and watch borders update in real time. No generate-and-wait. EVERY RATIO, EVERY PLATFORM Square (1:1), Portrait (4:5), Story (9:16), Wide (1.91:1) — plus sizes for TikTok, YouTube, and LinkedIn. Give every photo in a carousel the same ratio and multi-photo posts stay perfectly consistent. THREE BORDER STYLES • Color — quick swatches or any custom color • Blur — your photo becomes its own soft, seamless background • Auto — border color matched to each photo automatically NOW WITH VIDEO Add borders to videos too — Reels, TikTok, Stories. Same styles, same ratios, full resolution export. MAKE IT YOURS Margin slider, rounded corners, gradients, shadows — every adjustment previews live. BUILT FOR SPEED Edit up to 10 photos at once, save all in one tap at full resolution, share directly to any app. Beautiful in light and dark mode. No account. No watermark. No ads.

About

Carousel AI

Generate engaging Instagram carousel posts in minutes using AI-powered content creation and intuitive editing tools. Transform any idea into professional, high-quality content with smart structuring and copywriting.

Highlights
  • AI Content Generation
  • Full Editing Control
  • Simple & Clean Design
  • Effortless Publishing
  • Bulk Content Creation
  • Real-time Text Editing
Features
Read full description

**Carousel AI - Instagram Carousel Maker** Create stunning Instagram carousels with AI-powered content generation and full editing control **Transform Any Idea Into Viral Carousels In Minutes** Carousel AI is the ultimate Instagram carousel creator that combines artificial intelligence with intuitive editing tools. Like having a personal content strategist and designer in your pocket. **KEY FEATURES** AI Content Generation: Generate carousel posts on any topic instantly. Smart content structuring for maximum engagement. Professional copywriting powered by advanced AI. Full Editing Control: Edit and customize every word of AI-generated content. Real-time text editing with live preview. Complete creative control over your message. Fine-tune content to match your brand voice. Simple & Clean Design: Clean, minimal carousel layouts. Instagram-ready formatting and sizing. Focus on content, not complex design elements. Effortless Publishing: Seamless Instagram integration. One-tap export to Instagram Stories or Feed. Bulk content creation for consistent posting. **PERFECT FOR** Content Creators who need consistent, high-quality posts. Small Business Owners looking to boost engagement. Social Media Managers managing multiple accounts. Entrepreneurs building their personal brand. Anyone who wants engaging content without the writing struggle. **WHY CHOOSE CAROUSEL AI?** Speed: Create professional carousels in under 2 minutes. Quality: AI-generated content that drives real engagement. Control: Edit everything to match your unique style. Results: Proven carousel formats that convert followers. **HOW IT WORKS** Choose Your Topic: Enter any subject and get professionally written carousel posts instantly. AI Creates Content: Get professionally written carousel posts instantly. Edit & Customize: Modify text, adjust messaging, perfect your voice. Post & Engage: Export to Instagram and watch engagement soar. **STOP STRUGGLING WITH CONTENT CREATION** No more writer's block or blank page syndrome. No expensive designers or copywriters needed. No complex design software to learn. No time wasted on content that doesn't convert. Create engaging carousel content with AI assistance and full editing control. Download now and start creating better Instagram content. **Terms of Use** By downloading and using this app, you agree to Apple's standard End User License Agreement (EULA) which can be found at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Post Borders4 screens
Carousel AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Post Borders at none against Carousel AI's 1. Post Borders also leads on ratings volume (3 vs 1). On price, rating, update cadence and ads 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. Carousel AI sells 1 in-app purchase, starting at $4.99 per 7 days. Post Borders asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Post Borders against 5.0 for Carousel AI. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Post Borders ships an update every 4 days, Carousel AI every 2 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
Post Borders versus Carousel AI: the parameters behind the verdict, then further details
ParameterPost BordersCarousel AI
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhoneiPhone
Requires iOS17.016.6 — better
Further details — not scored
Size2 MB15 MB
Age rating4+4+
DeveloperSameer BhutaniAjay A S

In-app purchases

None

Post Borders

No in-app purchases

1 purchases

Carousel AI

Subscriptions1
  • Pro plan3 Days trial$4.997 Days

Questions

Is Post Borders free?
Post Borders is free to download, with no in-app purchases.
Is Carousel AI free?
Carousel AI is free to download, with in-app purchases available.
Which has better reviews, Post Borders or Carousel AI?
Post Borders and Carousel AI are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do Post Borders or Carousel AI have ads?
Neither Post Borders nor Carousel AI shows ads.
Which is updated more often, Post Borders or Carousel AI?
Post Borders ships an update every 4 days, and Carousel AI every 2 days. Most recently, Post Borders was updated on October 25, 2026 and Carousel AI on October 28, 2026.

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