Hashtag AI

Hashtag AI, listed on the App Store as Hashtag AI: Caption Generator, is an iPhone app from Lit Apps LLC that produces hashtags and captions for social posts. It is aimed at people who post on Instagram, TikTok, X and LinkedIn and want ready-made captions and relevant hashtags without composing them by hand. Its website is hashtagguru.app.

The user adds an image or describes what the post is about, and Hashtag AI returns both hashtags and a caption in one step. Output is tuned for each of the four supported platforms. Extra tools cover the rest of a posting workflow: popularity insights show which hashtags are trending, a posting-time tool finds the best time to post for reach, and a content idea generator supplies topics when the user has run out.

A caption quality analyzer checks and improves a draft caption, and a sponsorship estimator gauges brand deal potential from the user's content. Feature requests can be submitted directly to the development team from the app. Hashtag AI is available in English, Arabic, French, German, Italian, Portuguese and Spanish, and may collect purchases, identifiers, user content, usage data and diagnostics, some of it used to track users across other companies' apps and websites.

Hashtag AI is free to download with in-app purchases: Hashtag AI Pro (Lifetime) at $39.99, Hashtag AI Pro: Trends & More at $9.99 and $49.99, Weekly Pro: Hashtags & More at $3.99, and optional tips of $0.99, $3.99 and $6.99. The app is only for iPhone, requires iOS 17.0 or later, is rated 4+ and is 30.9 MB in size.

Use cases

• Writing Instagram captions with matching hashtags
• Finding trending hashtags for a post
• Timing a post for the most reach
• Estimating what a brand deal could be worth