- Tangent Templates: $59 once, permanent access, unlimited books, updates included. No subscription.
- It gives you 130+ templates, 700+ images, a page Designer, a cover designer, TT Turbo, Picture Book and a Listing Helper extension.
- You design every book yourself. Its homepage says you do not have to write a word, because low-content books need little or none.
- Bulk Publishing Books: $169 a month with 8 books included. It does the niche research, writing, interiors, cover, EPUB and metadata for you.
- Pick Tangent for cheap, hands-on low-content design. Pick Bulk Publishing Books if you want finished books without the design hours.
Side by side
Green ticks are things you get. Bulk Publishing Books ticks 19 of 19 rows; Tangent Templates ticks 11.
| Feature | Bulk Publishing Books |  Tangent Templates |
|---|---|---|
| Cost per finished book | About $21 (8 books for $169) | Unlimited books for $59 once; you design each one |
| Price | $169/month, 8 books included | $59 one-off, no subscription |
| Writes the full manuscript | In your saved Persona voice | No. TT Turbo imports content you bring, for example from a spreadsheet or ChatGPT |
| Book types | Non-fiction, fiction, workbooks, journals, planners, puzzle, activity and children's | Low and medium content: notebooks, journals, planners, logbooks, worksheets, colouring books |
| Editorial pass before you publish | Flags factual risk, repetition, voice drift, AI tells, reading level, KDP guidelines | No |
| Cover designer | Three directions, editable layers, full-wrap PDF with spine sized to page count | Paperback and hardcover, spine and barcode laid out for you |
| Print-ready interior PDF | KDP trim sizes, bleed and gutter margins set for you | 130+ templates in 17 KDP trim sizes |
| EPUB 3 eBook file | Yes | No |
| KDP listing checked against KDP rules | 7 keywords, 3 categories, description HTML, AI disclosure | Listing Helper Chrome extension |
| Amazon Ads launch plan | Campaigns, bids, budgets and bulk sheet export | No |
| Reverse ASIN for Ads | Standalone tool and inside the Ads builder (US data) | No |
| Tracking after launch | Daily BSR, reviews, keyword ranks and alerts | No |
| Launch checklist and series ideas | Yes | No |
| AI included, no API keys | Yes | No |
| Trial or guarantee | 7-day card trial, no refunds | Refund terms not stated on its homepage |
| Keyword and niche research | Yes | No |
| Category finder | Yes | Category browser, including hidden categories |
| You design every page yourself | No, interiors are built for you | Yes, in the Designer |
| Design library | Cover directions with editable layers | 700+ images, palettes, fonts, your own uploads |
Competitor facts from their public pages, as of October 2026. Prices change; check before you buy.
What you get with Tangent Templates
Tangent Templates as it looks today, and what it actually gives you, as of October 2026.
- Cost per finished book: Unlimited books for $59 once; you design each one
- Price: $59 one-off, no subscription
- Writes the full manuscript: No. TT Turbo imports content you bring, for example from a spreadsheet or ChatGPT
- Book types: Low and medium content: notebooks, journals, planners, logbooks, worksheets, colouring books
- Cover designer: Paperback and hardcover, spine and barcode laid out for you
- Print-ready interior PDF: 130+ templates in 17 KDP trim sizes
- KDP listing checked against KDP rules: Listing Helper Chrome extension
- Trial or guarantee: Refund terms not stated on its homepage
- Category finder: Category browser, including hidden categories
- You design every page yourself: Yes, in the Designer
- Design library: 700+ images, palettes, fonts, your own uploads
What you get with Bulk Publishing Books
Research tells you what to write. Bulk Publishing Books then writes it, edits it, designs the cover, formats the files and fills in your KDP listing. You upload and press publish.
Research that feeds the book
The keywords, categories and competitor gaps you pick are handed to the blueprint. You do not copy findings into a separate writing tool.
A Persona writes it
Each book is written in a saved Persona voice, then an editorial pass flags factual risk, repetition, voice drift and AI tells before you approve.
Formatted and covered
You get an interior PDF at a KDP trim size, an EPUB 3 file and a full-wrap cover PDF from one of three cover directions.
Metadata in KDP order
Title, description, 7 keyword slots, 3 categories and the AI disclosure are laid out in the order KDP asks for them, each with a copy button.
Tracked after launch
Published books get daily BSR, price, review and keyword rank snapshots, a launch checklist and series suggestions.
Your first book is on us for 7 days
Research, manuscript, cover and listing. Keep it even if you cancel.
What Tangent Templates is
Tangent Templates is a software suite made by Isaac Gonzalez and Katharyne Shelton, sold since April 2018. Its official site is templates.tangent.rocks; the tangenttemplates.com domain was showing a parked page when we checked.
It is built for low, medium and no-content books. You start from one of 130+ templates (meal planners, workout logs, prayer journals, sleep trackers, comic pages and more) or a blank page, then customise it in the Designer. TT Turbo turns a spreadsheet into a full book, Picture Book turns a folder of images into a colouring book, and TT Promptify re-niches a template with the AI tool of your choice.
Around the Designer sit smaller tools: a Listing Helper Chrome extension, a category browser, a pricing calculator, a PDF inspector, a pen name generator, a 3D mockup tool and a QR code generator.
Where Bulk Publishing Books is different
Tangent hands you a very good workshop. Bulk Publishing Books hands you the finished book. You pick a niche from the research, approve a blueprint, and it builds the interior, whether that is a workbook, a guided journal, a planner, a logbook or a full non-fiction manuscript, then designs the cover and lays out the KDP listing.
The trade-off is price and control. Tangent costs $59 once and every page is yours to design. Bulk Publishing Books costs $169 a month and saves the design and writing hours.
Which should you pick?
Niche research
Bulk Publishing Books finds keywords, categories and competitor gaps in 8 Amazon stores. Tangent has a category browser and pricing calculator but no keyword research.
Done for you
Bulk Publishing Books builds the workbook, journal or full non-fiction book, lays out the listing and tracks it after launch.
Price
$59 once for unlimited books is far cheaper than any subscription if you do the work yourself.
Hands-on design control
The Designer lets you mix templates, add 700+ images and your own fonts, and build pages from scratch.
Colouring and picture books
Picture Book lays out a whole colouring book from a folder of your images.
Covers
Both size the KDP cover and spine for you.
FAQ
How much does Tangent Templates cost?
Its homepage lists a one-off price of $59 with permanent access, unlimited books and no subscriptions, monthly payments or upsells (checked October 2026).
Is Tangent Templates a subscription?
No. It is a single payment, and its homepage says new tools are rolled out to every user.
Does Tangent Templates write books?
No. It is a design tool for low and medium content books. TT Turbo imports content you already have, for example from a spreadsheet or ChatGPT, and TT Promptify re-niches templates with an AI tool you choose.
Does Tangent Templates do keyword research?
Its homepage lists a category browser and a pricing calculator, not keyword research. Bulk Publishing Books includes keyword, category, competitor and Ads research in 8 Amazon stores.
Can Bulk Publishing Books make low-content books?
Yes. Bulk Publishing Books supports workbooks and low-content interiors such as journals, planners and logbooks, as well as full non-fiction and fiction.
What is the official Tangent Templates website?
templates.tangent.rocks. The tangenttemplates.com domain showed a parked page when we checked in October 2026.
How much does Bulk Publishing Books cost?
Bulk Publishing Books is $169 a month and includes 8 complete books (Chains) a month, unlimited research and unlimited Personas. A Chain counts when you approve its blueprint.
Is there a free trial or a refund?
There is a 7-day trial that needs a card through Stripe. Cancel before day 7 and you are not charged. During the trial research covers a set of starter keywords and categories. We do not offer refunds after billing starts, because every book uses real AI compute.
Do I need my own AI keys?
No. AI usage is included in the plan.
Does Bulk Publishing Books upload to KDP for me?
No. Amazon does not offer a public upload API for KDP, so you upload the files and paste the metadata yourself. Bulk Publishing Books gives you every file and field in the order KDP asks for them.
How we checked
We read each vendor's public pricing and feature pages on 6 October 2026 and only list what they state. Bulk Publishing Books is our product, so weigh that; we say where a rival is the better pick.
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