App Overview

Beresta: Library & Highlights icon

Beresta: Library & Highlights

Dmitriy Laukhin · Books

Beresta keeps what you read and what you took from it: books, articles, highlights — and the notes they turn into.

$19.99

PRICE
$19.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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What's included

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
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  • DIFFERENTIATION
  • skills/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Beresta keeps what you read and what you took from it: books, articles, highlights — and the notes they turn into. BOOKS STAY FILES Opens EPUB, FB2, PDF, MOBI and plain text. Importing copies: the file you brought stays where it was. Any book comes back out as a file under its real name through Share; on the Mac, "Save a copy of the library…" lays the whole library out as Author/Title folders. A book may hold several files at once — the reader picks the one that reads best, and you can pick another by hand. HIGHLIGHTS YOU CAN TAKE WITH YOU A quote, your own thought beside it, tags, bookmarks. On iPad, ink over PDF pages with Apple Pencil. All of it exports into an Obsidian vault as ordinary Markdown files rather than "our format": a person edits the note, not the program, and the next export will not overwrite what you wrote. There is a separate Obsidian plugin, open source. SYNC WITHOUT SOMEONE ELSE'S SERVER Beresta has no server of its own and no account. Devices exchange through a place you choose. To Backblaze B2 and WebDAV everything travels sealed: the key is derived from your passphrase on the device itself and stays with you. Through a folder — your own, a shared one, or one inside iCloud Drive — the files travel as they are: there the storage protects them, not Beresta, so pick a folder you trust. A LIBRARY, NOT A FILE LIST Authors, series, tags, nested shelves. Search by title and author everywhere; search inside the book you are reading, too; full-text search across the whole library on the Mac. Reading statuses and a reading log. On the Mac, import from Calibre brings covers and your own highlights along, and import from Zotero brings articles and notes. ARTICLES FROM THE WEB RSS subscriptions deliver articles straight into the library and store them the way books are stored: text, images and the original source. On the Mac a page can be clipped with the Safari extension — it ships inside the app, nothing to install. ON ALL YOUR DEVICES One purchase covers Mac, iPhone and iPad. Widgets: continue reading, and quote of the day. A nearby device offers to continue the book you started; if that is too much, one switch in settings turns it off. WHAT BERESTA DOES NOT DO No account. No analytics, no telemetry, and nothing leaves your device on its own. If something goes wrong, "Diagnostics" in Settings builds a report, shows it to you in full before anything is sent, and you decide whether to send it at all. No ads. It does not decide for you where your books live. Keeping your own files is not about distrusting clouds. It is about libraries taking years to build, and apps living shorter lives than that. A year of updates is included. After that you can extend for new features — or stay with what you bought: the app keeps working.

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
BUILD KIT DIFFICULTY

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A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.