Report updated May 5, 2026

Overview · Full Intel report in progress

OnShelf is an established book app that is completely free. With a 2.2/5 rating from 30.8K reviews, it shows polarized user reception.

What is OnShelf?

OnShelf is a digital library management tool that allows users to organize their reading collections by status, track progress through reading challenges, and store personal notes. The app distinguishes itself with unique metadata tracking, including page-specific citations and a dual-rating system featuring a 'spiciness' scale.

Current Momentum

v1.1 · 1w ago

Intense

Last updated 13d ago. 5 versions tracked.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Book

No ranking data

Rating Pulse 🇺🇸

What makes this app unique?

What Are The Key Features?

Library ManagementStandard

Organize books by reading status and sort collections by title, author, or date.

Notes and CitationsStandard

Store reading notes and favorite quotes linked to specific page numbers.

Dual Rating SystemStandard

Rate books using both a standard star system and a specific 'spiciness' level.

Reading ChallengesStandard

Set goals for the number of books to read within specific timeframes to track progress.

Visual CustomizationStandard

Personalize the interface with seven distinct visual themes.

How much does it cost?

Free

Who Built It?

Ruben Gonzalez app icon 1
Ruben Gonzalez app icon 2
Ruben Gonzalez app icon 3
Ruben Gonzalez app icon 4

Ruben Gonzalez

(35)

Providing specialized utility and productivity tools for niche professional and educational workflows. Enabling users to manage complex data, vehicle diagnostics, and learning systems through focused mobile applications.

Portfolio

6

Apps

Free 3Paid 2
Productivity20%
Education20%
Social Networking20%

Explore the full Ruben Gonzalez report

Portfolio breakdown, audience, momentum, and every app published by Ruben Gonzalez.

Go deeper

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

View the full user-sentiment analysis

Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.

Go deeper

Analysis in progress, available soon

What is the competitive landscape for OnShelf?

How's The Book Market?

Market outlook for this category

Available very soon

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for OnShelf

Key Takeaways

OnShelf provides a comprehensive, feature-rich organizational tool for readers that emphasizes detailed metadata and progress tracking.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by OnShelf, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “OnShelf Intelligence Report.” Updated May 5, 2026. https://marlvel.ai/apps/onshelf

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Data licensed under CC-BY-NC 4.0