# PostFluency: AI Caption Writer — Brand DNA & Product Copy AI

> Brand DNA & Product Copy AI (iPhone/iPad app by PostFluency.)

- Source: https://appshunter.io/ios/app/postfluency-ai-caption-writer/id6768597919 (this page in markdown: same URL + `.md`)
- Developer: [PostFluency](https://appshunter.io/developer/1896588532)
- Category: Productivity, Business
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 37 MB
- Languages: American English
- Released: 2026-06-15
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/postfluency-ai-caption-writer/id6768597919/reviews.md

## What is PostFluency?

Write Better Captions and Descriptions. Built Around Your Brand.

PostFluency is the AI caption and description writer for entrepreneurs, creators, and social media managers who post daily and can't afford to waste time.

Tell PostFluency about your business once. It remembers your brand voice, your audience, and your tone, and uses that context every single time you generate copy.

WHAT POSTFLUENCY CREATES FOR YOU

TikTok & Instagram Captions - Scroll-stopping hooks and captions for short-form video. Platform-native tone. Copy that converts.
Product Descriptions - Publish-ready listings for Shopify, Etsy, Amazon. Write one item or a full catalog with consistent, sales-driven copy.
Social Media Posts - Facebook, Instagram, TikTok, YouTube, LinkedIn, X. One brand voice, every platform, zero generic output.
Ad Copy & Hooks - Scroll-stopping first lines and CTAs, smart and short.

THE BRAND DNA SYSTEM

Most AI tools forget everything the moment you close them. PostFluency doesn't. Create a Brand DNA profile for each business: tone, audience, niche, key messages. Every output pulls from that profile automatically. Running three brands? Three profiles. Switch instantly.

BUILT FOR PRIVACY

PostFluency works 100% locally on your device. No account required. No cloud sync. No data shared with anyone. Your brand profiles and generated copy stay on your phone.

COPY HISTORY - ALWAYS SAVED

Every caption and description you generate is saved locally. Browse your history, reuse your best copy, build a personal swipe file.

WHO THIS IS FOR

Entrepreneurs managing multiple businesses  |  E-commerce sellers writing product descriptions at scale  |  TikTok and Instagram content creators  |  Social media managers handling multiple clients  |  Small business owners who post daily  |  Freelance copywriters and marketing consultants

Download PostFluency and write your first caption in under 30 seconds.

Terms of Use: https://postfluency.app/#terms-of-use

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

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



## Version history (last 3 releases)

### 1.0.6 — 2026-07-01

What's New:
• Say hello to Image Enhancement in Ecommerce Description Studio! Easily upgrade your product photos to professional quality with one click.
• We've also polished the app and crushed some minor bugs for better performance.

### 1.0.5 — 2026-06-15

Improved app stability and performance. Thanks for using PostFluency!

### 1.0 — 2026-06-15

No release notes.

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*