Oakleaf PressTHE READER PROBLEM
Knowing is not the same as doing.
They understand your advice, but still need prompts, decisions, practice, feedback or a way to track progress.
For non-fiction authors, educators & creators
Your book sells once.
Could your expertise earn every month?
You've put your knowledge into a book. A reader buys it once. But what if they need your method every week?
A companion app could help them apply your expertise, track progress and keep coming back. That creates the possibility of a second product and recurring revenue, without writing another book.
Our free workbook helps you find the repeatable idea worth testing first.
12-page practical workbookClear steps and worksheetsNo obligation to build
From the written wordTo something your readers return to.
One manuscript.
Two different ways to create value.
Two different ways to create value.
A book explains your method. An app can help readers use it repeatedly. That changes the relationship from a one-off purchase to an ongoing service. Subscriptions, licensing and paid tools become possible when people genuinely need to return.
Why this matters to an author
Your reader did not buy your book just to own the pages. They wanted a result.
A book can teach the method. But what happens when the reader needs to apply that method next Monday, next month or after their circumstances change? That is the gap a companion app could solve, and the reason someone might pay for continued access.
YOUR HIDDEN ASSET
You have already designed the method.
The exercises, framework or process in your manuscript can form the starting point of a small interactive tool.
THE COMMERCIAL POSSIBILITY
Value that continues can be sold differently.
If readers return because it helps them, a one-off purchase, paid tool, professional licence or subscription may be worth testing.
The commercial shift
One book purchase. Or a service readers choose to keep.
Imagine an author selling a £10 book. A reader pays once. If that author develops an app offering an ongoing useful outcome, a customer might instead choose a £9.99 monthly subscription.
The important question is not whether monthly billing is possible. It is whether the app solves a problem often enough to earn the next payment.
Illustrative retail spending only, not author earnings. App income depends on adoption and retention; excludes VAT, store fees, development, hosting, support, refunds and cancellations.
One-time book purchase£10Paid once by a reader
VERSUS
App subscription example£119.8812 months at £9.99, if retained
This is an example of how a pricing model works, not a forecast or a promise of recurring profit.
The opportunity most authors overlook
You may already own the foundations of a product people use again and again.
A checklist used once is a page in a book. A guided process that people repeat every week could become something more. Look for recurring problems your book already helps readers solve.
01 / A REPEATABLE PROCESS
A guided action plan
Convert your steps or methodology into a journey readers can follow and revisit, with clear next actions and saved progress.
02 / SOMETHING TO MEASURE
A progress companion
Turn recurring exercises or personal challenges into a simple way to record milestones, reflect and keep moving.
03 / A DECISION TO MAKE
An interactive assessment
Guide a reader through questions, score criteria transparently and provide an appropriate practical next step.
OAKLEAF PRESS
BOOKS TO APP / FREE WORKBOOK
Find the app inside your book.
A practical assessment for authors who want to turn their expertise into an experience.
What does your reader still need to DO once the book is closed?
The free opportunity finder
Is there a recurring-revenue opportunity inside your book?
Find the App Inside Your Book is a twelve-page workbook that helps you uncover the useful, repeatable part of your intellectual property, choose a simple app concept and test whether readers might value it enough to pay for it.
- Identify the problems readers need to solve repeatedly
- Find practical assets already present in your book
- Compare and score three possible app ideas
- Map a simple interaction and its useful outcome
- Compare a book sale with a potential paid app, with transparent assumptions
- Model customer retention, operating costs and commercial viability
- Plan a real reader test before spending on development
- Write a one-page app hypothesis you can actually evaluate
Designed for books, substantial manuscripts and course material.
The method
A practical route from pages to product.
Start small. Understand your audience. Build only when there is something worth proving.
01
Extract
Identify frameworks, checklists, exercises and decision tools.
02
Select
Choose the one recurring reader problem with real value.
03
Specify
Describe what the reader enters, does and receives.
04
Validate
Test the experience with real readers and record what happens.
05
Improve
Decide whether to refine, build, licence or stop.
Free author opportunity assessment
Find the next product hiding in your book.
Stop guessing whether your expertise could become a paid tool. Identify what your readers would use repeatedly, then test the concept before investing in development.
The workbook is built around your own source material. You keep control of your ideas and do not need to upload your manuscript.
No claims of guaranteed subscription income, invented results or automatic product-market fit. This is a genuine exploratory exercise, not a sales qualification masquerading as a score.
Request the assessment
After submitting, you can download the complete twelve-page PDF straight away. Marketing emails are a separate, optional choice.
Frequently asked questions
Before you begin
Does my book need to be published?
No. You can use the assessment with a substantial manuscript, course or workbook. The key is having repeatable material and a specific reader need.
Does every book have an app inside it?
No. Some ideas are better served by a website, worksheet, community or a refreshed edition. The assessment helps you recognise that before investing.
Will this tell me what I should charge?
It helps you consider one-off pricing, subscriptions and licensing. It does not forecast sales or guarantee recurring income. Pricing should be tested with the intended readers.
Do I need to share my manuscript?
No. The request form collects basic contact information and an optional topic. Your workbook answers are yours. Any manuscript review would require separate agreement.
Can I create the app with an AI coding tool?
AI-assisted builders can help prototype an idea. Real applications still need a sound user journey, security, testing, accessibility and a plan for operations.