# Seshu vs PostFluency

The clearest difference is iOS requirement: Seshu at 13.0 against PostFluency's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Seshu sells 3 in-app purchases, starting at $4.99 per month and PostFluency sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 8 days. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Seshu | PostFluency |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | Every 8 days |
| Size | 71 MB | 37 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Moataz Abdelazeem](https://appshunter.io/developer/1740028363) | [PostFluency](https://appshunter.io/developer/1896588532) |

## What reviewers say

### Seshu

[App page](https://appshunter.io/ios/app/seshu-ai-viral-video-scripts/id6757835725)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $4.99 | per month |
| Pro | $9.99 | per month |
| Elite | $24.99 | per month |


### PostFluency

[App page](https://appshunter.io/ios/app/postfluency-ai-caption-writer/id6768597919)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PostFluency Monthly Subscription | $9.99 | per month |
| PostFluency Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is Seshu free?

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

### Is PostFluency free?

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

### Do Seshu or PostFluency have ads?

Neither Seshu nor PostFluency shows ads.

### Which is updated more often, Seshu or PostFluency?

Seshu ships an update every 8 days, and PostFluency every 8 days. Most recently, Seshu was updated on October 18, 2026 and PostFluency on October 16, 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.*