Caption Writer: Social Boost 4+

AI & Font Growth for Instagram

Jumpstrap, LLC

Designed for iPad

    • 4.8 • 1.7K Ratings
    • Free
    • Offers In-App Purchases



The #1 AI App for your Social Media Brands! Create 100% unique captions with perfect hashtags in seconds, then spice them up with custom fonts for on any social network!

Grow your social media accounts faster and easier using Caption Writer! Auto-generate your captions in seconds then spice them up with custom fonts, hashtags, symbols, and more! Influencers all over the world are adding *perfect* line breaks & unique fonts using Caption Writer on Instagram, TikTok, Twitter, Facebook, and more :)

A Few Key Features:

- AI Assistant will write your captions for you!
- Use over 30 custom fonts & thousands of unique symbols
- Perfect line breaks – without the need for dots between lines!
- Explore thousands of pre-made captions
- Draft & save unlimited captions to post whenever you'd like
- Browse & save millions of hashtags to help you reach more people
- Preview your caption & fonts before you post
- Copy your perfectly formatted text with spaces, fonts & hashtags :)
- and so much more!

Not to mention, you can write your captions online at []( and they'll automatically sync to your phone!

Connect with us on Instagram

Enjoy :)

Have questions? Want more? Wish it could do something it can't? Reach out at!

Privacy Policy:
Terms & Conditions:

What’s New

Version 4.0.8

Bug fixes! Thanks to those that take the time to report any issues they find :) It's super helpful and we all benefit from it!

As always, is always available :)

Ratings and Reviews

4.8 out of 5
1.7K Ratings

1.7K Ratings

Nigumo ,

Pretty Darn Useful App for IG

I’ve been using this app for about a month now and I’m really liking all of the features included within it. I can bold, italicize, change font & sizing and one of the best features is it’s perfect line-break spacing. It’s basically all you’ll need for a caption writer. What I don’t like is that they want a subscription fee. I completely understand that in the long haul, it must be good to have continued income from users. But they should also add one more option to BUYOUT at one-time price of $60-$70. I’ve paid this much for other apps and I just write it off as a business expense. But what I don’t want is a continuous charge for me to monitor over the years. As IG changes and adds more features, they may incorporate better caption writing options and that would place this as obsolete as users cancel their subscription. At least with a one-time payout, they would have made 2 years worth of income before that happens. Anyhow, that’s just my 2 cents. I like the app. I recommend it. I still use it for the spacing and then use another Free app for the Font/Bold options. Good functionality though 😊

Developer Response ,

Thanks so much for the feedback! We’re always open to seeing how best to price our Pro features, and will look into adding a lifetime option for you and anyone else interested in the one-time fee instead of recurring 😊

cmalekoff ,

Best app for Instagram!!!

I LOVE this app! Saving my captions saves me so much time, thank you for making such a simple to use app. I save all of my hashtags in groups, write my caption, change my fonts and then boom, I’m ready to post :) Originally I was just looking for something to update fonts, but the other features really make my life easy. The developer was also extremely responsive when I had questions about how to use certain things – and even put how-to guides right in the app to help out the next day. Truly a great app, 5 stars all around :) Next, I’d work on adding more captions and hashtags to the hashtag library. There are tons, but maybe add a Trending section just so we can have easier access to the more recently popular ones. Not a big deal, but could help! THANK YOU

RHull869 ,

Best cation writer

I’ve tried 4 or 5 of the top AI writers and this one by far is the best.
As a Social Media Manager I sometimes struggle with finding catchy captions and hashtags and this app is a lifesaver.

The only thing I wish is that the desktop website had the same features as the app. There’s no option to generate hashtags or use the AI writing assistant. I use it mainly to transfer cations from my phone to my desktop where I do 80% of my work because it syncs between the two instantly.

App Privacy

The developer, Jumpstrap, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contact Info
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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