First Book ai

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tnd.lmk4p

Verified purchaser

Deals bought: 13Member since: Apr 2024
5 stars
5 stars
Apr 13, 2026

Absolutely awesome!

Okay lets put the bottom line up front. After creating several manuscripts, I would buy it again in an instant. I bought the highest tier (5). I have played with this app and found that it does what it says it's going to do. I wanted more information on emotional non-reactivity. Not boundaries, not stuff about Buddha and lunar cycles and feelings and positive attitudes or any of that more nuanced perspective. I wanted facts and actionable advice. I got it in less than 2 hours.

The output explained everything from neuroplasticity to actionable steps. I was shocked at the detail and in-depth work it created and wondered if the ai was making stuff up. So I used Perplexity, Google and more tools to find sources that I could verify. The book does indeed follow current knowledge and advice. I can't ask for more. This is exactly what I wanted.

I don't have any feedback other than I want the quality output to stay the same. New features are great an all, but not if those features detract from the detail and depth I am currently getting. I really hope they are around for the foreseeable future so I can keep using this awesome tool.

Founder Team
Casper_FirstBook.ai

Casper_FirstBook.ai

Apr 13, 2026

Thank you for sharing your experience and for the kind words - also for actually fact-checking the output. That means a lot to us!

Knowing the content holds up against Perplexity/Google, etc. is exactly the bar we're building to, and hearing that it does gives us a real boost.

Your point about quality is noted and taken seriously. New features won't come at the cost of depth and accuracy. That's non-negotiable for us too.

Really glad you're getting so much value out of it. Several manuscripts already on Tier 5, that's awesome. Can't wait to see what you write next! 🚀

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