---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "Bookster"
developer_entity: "Nikolay Denislamov"
bundle_id: "Kibernetik.Bookster"
app_store_id: "1081737097"
category: "Book"
primary_platform: "ios"
primary_monetization: "Paid"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2024-09-12"
report_date: "2026-05-19"
last_verified: "2026-05-19T18:19:27.788Z"
report_version: "2.0.1"
total_reviews: 0
confidence: "low"
confidence_score: 0.2
data_age_days: 26
momentum_velocity: "zombie"
intelligence_version: 2
tags: ["book", "paid", "mobile app", "app review", "app analysis", "users", "documents", "within"]
canonical_url: "https://marlvel.ai/intel-report/books/kibernetik-bookster"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# Bookster App Audit

## TL;DR {#tldr}

- **Category**: Book · Paid

> **TL;DR:** Bookster is a book app by Nikolay Denislamov, available on iOS.
>
> **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** Bookster is a book app by Nikolay Denislamov.
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## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Category** | Book |
| **Developer** | Nikolay Denislamov |
| **Pricing** | Paid |
| **Platforms** | iOS |
| **Confidence** | Low (0.2/1.0) |
| **Data Age** | 0d |

## Metadata & Market Performance
- **Publisher:** Nikolay Denislamov
- **Category:** Book
- **Target Audience:** iOS users who need to read FB2 or TXT documents within the native Apple Books application.
- **Platforms:** iOS
- **Version Audited:** 2.0.1
- **Audit Date:** 2026-05-19
- **Signal Count:** 2 reviews analyzed
- **Confidence:** Low (0.2/1.0)
- **App Store ID (iOS):** 1081737097
- **Bundle ID:** Kibernetik.Bookster
- **Data Window:** Analysis based on signals collected up to 2026-05-19

<!-- section:executive-snapshot -->
## Executive Snapshot
Bookster is a utility tool designed to convert FB2 and TXT files into the ePub format, enabling users to import these documents into the native iOS 'Books' app. It addresses the lack of native support for these formats in Apple's reader by acting as a bridge for file conversion and transfer.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Standard] Format Conversion:** Converts FB2 and TXT files into the ePub format compatible with the iOS Books app.
- **[Standard] File Import:** Supports importing files from the Files app, iTunes, or direct downloads from the internet.
- **[Standard] iOS Books Integration:** Facilitates the transfer of converted ePub files directly into the native iOS Books reader.
<!-- /section:features -->

## Monetization Strategy
- **Model:** Paid
- **Price:** iOS: $4.99

<!-- section:momentum -->
## App Momentum (Zombie) {#momentum}

Last updated 614d ago. 5 versions tracked.

> **Cadence:** 5 total versions · 0 majors in last 6 months · 614 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

Bookster is an established book app that is a paid app.

<!-- speakable-start -->
> **Bottom Line:** The app serves as a file conversion utility for iOS users, though recent user feedback indicates significant technical issues with functionality and file handling.
<!-- speakable-end -->

**Best for:** iOS users who need to read FB2 or TXT documents within the native Apple Books application.

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Total Reviews | 0 |
| Confidence | Low |
| Pricing Model | Paid |
| Platforms | iOS |
| Key Features | 3 analyzed |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **Bookster** (this app) | N/A/5 | N/A | Nikolay Denislamov |
| [Gutenberg | eBook Reader](https://marlvel.ai/intel-report/books/gutenberg-ebook-reader) | 4.4/5 | N/A | Webron Software LTD |
| [Love Text Messages and Quotes](https://marlvel.ai/intel-report/books/love-text-messages-and-quotes) | 4.7/5 | N/A | DH3 Games |
| [Hindu Calendar - Panchang](https://marlvel.ai/intel-report/books/hindu-calendar-panchang) | 4.3/5 | N/A | Sudhirbhai Ubhada |
| [Booknet – electronic books](https://marlvel.ai/intel-report/books/booknet-electronic-books) | 3.5/5 | N/A | Biblioteka Group Limited |
| [Die Bybel Audio Bible Ebook](https://marlvel.ai/intel-report/books/die-bybel-audio-bible-ebook) | 4.8/5 | N/A | Christopher Wilson |

## Company Profile
- **Developer:** Nikolay Denislamov
- **Website:** [https://nitisara.ru](https://nitisara.ru)

## Data Sources & Links
- **App Store:** [View on Apple Store](https://apps.apple.com/ro/app/bookster/id1081737097?uo=2)
- **Dev Site:** [Official Website](https://nitisara.ru)
- **Sources:** App store metadata, User reviews.

## Related Intel Reports
- [*Gutenberg | eBook Reader*](https://marlvel.ai/intel-report/books/gutenberg-ebook-reader) (Webron Software LTD) — 4.4/5 Rating | N/A Sentiment
- [*Love Text Messages and Quotes*](https://marlvel.ai/intel-report/books/love-text-messages-and-quotes) (DH3 Games) — 4.7/5 Rating | N/A Sentiment
- [*Hindu Calendar - Panchang*](https://marlvel.ai/intel-report/books/hindu-calendar-panchang) (Sudhirbhai Ubhada) — 4.3/5 Rating | N/A Sentiment
- [*Booknet – electronic books*](https://marlvel.ai/intel-report/books/booknet-electronic-books) (Biblioteka Group Limited) — 3.5/5 Rating | N/A Sentiment
- [*Die Bybel Audio Bible Ebook*](https://marlvel.ai/intel-report/books/die-bybel-audio-bible-ebook) (Christopher Wilson) — 4.8/5 Rating | N/A Sentiment
- [*Ramayan RamCharitManas*](https://marlvel.ai/intel-report/books/ramayan-ramcharitmanas) (Jaykishan Moradiya) — 4.6/5 Rating | N/A Sentiment
- [*Bhagavad Gita Hindi !*](https://marlvel.ai/intel-report/books/bhagavad-gita-hindi) (LEARNING GAME APPS PRIVATE LIMITED) — 4.8/5 Rating | N/A Sentiment
- [*Garudpuran Hindi*](https://marlvel.ai/intel-report/books/garudpuran-hindi) (Dharmesh Kathiriya) — 5.0/5 Rating | N/A Sentiment
- [*Shiv Purana in Hindi*](https://marlvel.ai/intel-report/books/shiv-purana-in-hindi) (Mohit Agarwal) — 4.6/5 Rating | Positive Sentiment
- [*كتبي للجميع*](https://marlvel.ai/intel-report/books/app--163) (Ahmed Emad AlDeen Lotfy Mahmoud) — N/A Rating | N/A Sentiment

## Methodology {#methodology}

This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline:

1. **Signal Collection & Normalization** — Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps.
2. **Feature & Market Positioning Analysis** — Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks.
3. **User Sentiment Analysis** — Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction and evidence quoting.
4. **Competitive Landscape Analysis** — Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category.
5. **Intelligence Synthesis** — Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights.

- **Confidence Score:** 0.2/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 2
- **Data Sources:** user reviews, App Store metadata
- **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform
- **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence.
- **Report Age:** 0 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/books/kibernetik-bookster)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.