Caption AI vs PostGen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caption AI
This smart assistant uses AI to generate captions, hashtags, and bios tailored to your brand or personal style. It helps you write faster and more consistently, offering tone customization and multilingual support. Save your favorites and access your history for easy content management.
- Generate captions, hashtags, and bios
- Selectable content tones
- Multilingual content generation (English, French, Spanish)
- Save favorite generated content
- Access generation history
- Light and dark mode support
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Caption AI: Hashtag Expert Take your content to the next level with Caption AI — your smart assistant for generating captions, hashtags, and bios tailored to your brand or personal style. Whether you’re a content creator, marketer, influencer, or entrepreneur, this app helps you write faster, smarter, and more consistently. What You Can Do with Caption AI: • Generate Captions, Hashtags, and Bios in Seconds Create high-quality, relevant, and engaging captions, hashtags, and bios using AI. Whether you’re launching a new product, posting a selfie, or announcing an event — we’ve got the words for it. • Choose Your Tone Your brand is unique. That’s why Caption AI lets you select the tone of your content. From edgy and bold, to professional or playful — customize the vibe to match your audience. • Write in 3 Languages Expand your reach with multilingual support. Generate content in English, French, or Spanish. Perfect for global brands or multilingual audiences. • Save Your Favorites Like something you generated? Save it for later. Reuse, modify, or simply keep a library of your top-performing content ideas at your fingertips. • Access Your History All your generated captions, hashtags, and bios are saved in your history. Never lose a great idea — revisit and refine whenever you want. • Light & Dark Mode Support Use the app comfortably in any environment. Caption AI adapts to your system’s theme preferences for an optimal visual experience. • Intuitive & Minimalist Design Built with usability in mind, Caption AI keeps the focus on your content. No distractions, just the tools you need — when you need them. Who Is It For? • Social media managers • Content creators and influencers • Small business owners • Freelancers and personal brands • Anyone who wants better captions without the struggle Why Caption AI? Writing good content takes time. Caption AI helps you streamline the creative process, reduce mental fatigue, and stay consistent across platforms. Whether you’re stuck on what to write or just want better engagement — let AI handle the heavy lifting so you can focus on your strategy.
PostGen
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PostGen: Your AI-Powered Social Media Post Generator PostGen is an AI writing assistant designed for creators, social media managers, and personal brands. Quickly generate high-quality content for platforms like Instagram, Reels, Facebook, and more. Just enter a topic, keywords, and preferred tone — PostGen will instantly craft a professional and engaging caption ready to use. Key Features 1. Instant Post Generation: Enter your topic, keywords, and tone to generate a polished draft in seconds 2. Multilingual Support: Create content in English, Chinese, or Japanese 3. Hashtag Suggestions: Automatically generate relevant hashtags to increase reach 4. Local Storage and Privacy: Your content stays on your device. Nothing is uploaded to the cloud, keeping your ideas secure Who is it for? • Social media managers: brand marketers, content strategists, and digital agencies • Small business owners: online sellers, entrepreneurs, and personal brand creators • Everyday users: people who enjoy sharing on social media but often run out of ideas Whether you’re preparing scheduled content or facing writer’s block, PostGen helps you complete your post with ease. Generate high-quality drafts in seconds and spend more time on creativity and engagement. Why choose PostGen? In today’s content-driven world, words shape your brand identity. Instead of spending 15 minutes thinking about what to write, let PostGen help you craft natural, platform-ready captions that sound like you — only faster. Powered by advanced language models, PostGen produces not just sentences, but compelling content that captures attention. Download PostGen today and streamline your content creation workflow. Make AI your most reliable writing assistant and never run out of ideas again. Terms of Use (EULA): https://junlando.github.io/PostGen-Terms/
Screenshots
Verdict
The clearest difference is in-app purchases: Caption AI at none against PostGen's 2. Caption AI also leads on device support (3 vs 1). On price, ads and iOS requirement 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
Both are free to download. PostGen sells 2 in-app purchases, starting at $4.99 per month. Caption AI asks for nothing beyond the download.
| Parameter | Caption AI | PostGen |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 37 MB | 37 MB |
| Age rating | 4+ | 17+ |
| Developer | JAVIER DE JESUS ROCHA AHUMADA | Chun Chih Lin |
In-app purchases
Caption AI
No in-app purchases
PostGen
- PostGen Basic Monthly3 Days trial$4.991 Month
- PostGen Plus Monthly3 Days trial$7.991 Month









