Data updated: July 2026
Kristin Cast ✓
@kcastauthor · Instagram · US · books
About Kristin Cast
Kristin Cast, known as kcastauthor on Instagram, is a micro creator with a focus on books and entertainment. With a follower count of 30,658, she engages her audience through various content formats, including static posts, stories, carousels, and reels. Her biography highlights her status as a bestselling author, emphasizing her storytelling capabilities. Kristin's content often conveys heartwarming and emotional themes, resonating with her audience. Some content may require brand review.
@kcastauthor's followers & following
@kcastauthor currently has 30,658 followers on Instagram and follows 873 accounts, a follower-to-following ratio of 35.12. That places the account in the micro tier of books creators.
@kcastauthor's content
@kcastauthor has published 991 posts to date, working across static-posts, stories, carousels, reels. The account's content is classified under books, entertainment. Bio: “No. 1 NYT, USA Today, and worldwide bestselling author. I write fun, flirty stories that sometimes have redrum and always have heart. 💕🔪”
AI quality check on @kcastauthor
Zaver's AI analyzed this account across 20+ parameters before listing it publicly. No blocking issues were detected in our standard screening.
- Audience location & demographics
- Engagement quality & authenticity
- Follower growth patterns
- Signs of purchased followers
- Content niche classification
- Brand safety screening
- Posting activity & consistency
- Language & audience fit
@kcastauthor's rankings on Zaver
Based on follower count among creators that passed Zaver's indexing quality bar.
@kcastauthor's audience
Audience snapshot
30% male · 70% female
Core age group18-24
Kristin's audience skews slightly male at 30%, primarily within the 18-24 age range. The top geographic location for her followers is the United States, indicating a concentrated interest in her content among younger demographics.
Collaboration pricing
Price tierstandard
Get the AI fair-price estimate → free trialWhich brands fit Kristin Cast?
Brands in the book and entertainment sectors may find a suitable collaboration with Kristin Cast, as her content aligns with storytelling and emotional engagement. Her established presence as a bestselling author enhances her credibility in these niches.
Frequently asked questions
How many Instagram followers does @kcastauthor have?
As of July 2026, @kcastauthor has 30,658 followers (31K) on Instagram, follows 873 accounts, and has published 991 posts. Zaver refreshes these numbers on a rolling basis.
How do I contact @kcastauthor?
Verified contact details for @kcastauthor — including business email where available — are held in Zaver, alongside contacts for 77M+ other Instagram creators. Zaver users can unlock them instantly and reach out with AI-personalized outreach. Unlock @kcastauthor's contact info — free trial →
How much does @kcastauthor charge for a sponsored post?
@kcastauthor sits in the standard price tier on Zaver, based on follower scale, engagement and niche. Zaver's AI pricing model also produces a fair per-post price range with justification, so brands can negotiate from data instead of guessing. Get the AI fair-price estimate →
What is @kcastauthor's net worth?
@kcastauthor's net worth isn't publicly verified, and Zaver doesn't estimate personal wealth. What can be assessed is sponsored-post earning potential: with 31K followers and a standard price tier in books, brand collaborations are a meaningful income stream — Zaver's AI pricing model estimates what each placement is worth. See the earning-potential estimate →
Does @kcastauthor have fake followers?
Zaver's AI authenticity check scores @kcastauthor 98/100, based on 20+ signals including engagement quality, follower growth patterns and signs of purchased followers. That indicates a predominantly genuine audience. Run the full authenticity check →
Who follows @kcastauthor?
@kcastauthor's 31K followers skew 30% male / 70% female, core age group 18-24. Full audience breakdowns — age bands, gender split and country-level distribution — are part of @kcastauthor's report on Zaver.
Which influencers are similar to @kcastauthor?
Zaver lists comparable books creators in United States in the "Influencers like @kcastauthor" section on this page, matched by niche, audience size and engagement. Zaver users can also search all 6,450 vetted books creators with plain-English queries.
What is Kristin's follower count?
Kristin has 30,658 followers.
What is her engagement rate?
Engagement rate data is not available.
What is the collaboration pricing?
Kristin is in the standard price tier, but pricing may vary based on specific collaboration details.
What is her content niche?
Her primary niche is books, with a secondary focus on entertainment.
