# PostPro vs AI Caption Writer for IG

The clearest difference is update cadence: PostPro at fortnightly against AI Caption Writer for IG's every 6 weeks. PostPro also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PostPro sells 2 in-app purchases, starting at $3.99 per month and AI Caption Writer for IG sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PostPro ships an update fortnightly, AI Caption Writer for IG every 6 weeks. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | PostPro | AI Caption Writer for IG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/postpro-ai-generated-posts/id6462699110/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Freemium | — |
| Size | 41 MB | 13 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Cyberdeen LLC](https://appshunter.io/developer/1703265028) | [Alsy Apps Ltd](https://appshunter.io/developer/1519453302) |

## What reviewers say

### PostPro

[App page](https://appshunter.io/ios/app/postpro-ai-generated-posts/id6462699110)

Effortlessly create engaging social media content with AI. Transform text, voice, or images into perfectly tailored posts with customizable tones. Supports multiple languages and popular social platforms.

**Highlights:** AI-generated posts, Text to post conversion, Voice to post conversion, Image to post captioning, Customizable post tone, Multi-language support

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | per month |
| Professional | $6.99 | per month |


### AI Caption Writer for IG

[App page](https://appshunter.io/ios/app/ai-caption-writer-for-ig/id6471840496)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Pro AI Caption Writing | $4.99 | per 7 days |
| 1 Year Pro AI Caption Writing | $34.99 | per year |


## Frequently asked questions

### Is PostPro free?

PostPro is free to download, with in-app purchases available.

### Is AI Caption Writer for IG free?

AI Caption Writer for IG is free to download, with in-app purchases available.

### Do PostPro or AI Caption Writer for IG have ads?

Neither PostPro nor AI Caption Writer for IG shows ads.

### Which is updated more often, PostPro or AI Caption Writer for IG?

PostPro ships an update fortnightly, and AI Caption Writer for IG every 6 weeks. Most recently, PostPro was updated on September 11, 2026 and AI Caption Writer for IG on September 8, 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.*