# Post Borders vs Carousel AI

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.

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.

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.

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.

## The numbers

| Metric | Post Borders | Carousel AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/post-borders-no-crop/id6737579356/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/carousel-ai/id6746837346/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Size | 2 MB | 15 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sameer Bhutani](https://appshunter.io/developer/1773434301) | [Ajay A S](https://appshunter.io/developer/1764761195) |

## What reviewers say

### Post Borders

[App page](https://appshunter.io/ios/app/post-borders-no-crop/id6737579356)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Carousel AI

[App page](https://appshunter.io/ios/app/carousel-ai/id6746837346)

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:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro plan | $4.99 | per 7 days |


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