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Nenrin Review

Nenrin is an iOS application designed for fountain pen and ink collectors to manage their collections visually and privately.

shipped Sep 22, 2026image-generationfreemium
image-generation
Nenrin — product screenshot

Why it matters

1Available exclusively on iOS platforms.
2Offers a freemium pricing model with a single purchase for Nenrin Pro.
3Features include visual collection display, ink flushing reminders, and CSV/JSON export.
4Emphasizes user privacy with no accounts or tracking.

About Nenrin

Business Model
Per-Job Pricing
Headquarters
Tallinn, Estonia
Platforms
iOS
Target Audience
Fountain pen and ink collectors

Pricing Plans

Free
Free
  • • Three pens and three inks
  • • Everything included
  • • iCloud sync
Nenrin Pro
Single purchase
  • • Every pen and ink
  • • Alternate app icons
  • • Shares without the small mark

Leadership

Maurizio HernandezOwner

Screenshots

overview

What is Nenrin?

Nenrin is a collection management tool that enables fountain pen and ink collectors to organize and track their collections. It provides a visually appealing interface for managing pens and inks, with a strong emphasis on user privacy and simplicity, operating without user accounts or data tracking.

features

Key Features of Nenrin

Nenrin provides specific functionalities tailored for fountain pen and ink enthusiasts, focusing on collection organization and maintenance.

  • Track every pen and ink within a dedicated interface.
  • Visual collection display for an organized overview of owned items.
  • Reminders for ink flushing to maintain pen condition.
  • Import collection data from CSV files.
  • Export collection data as CSV or JSON formats.

use cases

Who Should Use Nenrin?

Nenrin is designed for individuals who actively collect and manage fountain pens and inks, prioritizing a private and straightforward digital organization solution.

  • Fountain pen collectors seeking a dedicated application to catalog their pen acquisitions.
  • Ink enthusiasts who require a system for tracking their ink colors and inventory.
  • Users who desire reminders for pen maintenance, such as ink flushing, to ensure longevity of their collection.

how to use

How to Use Nenrin

To begin using Nenrin, users download the application from the iOS App Store and can immediately start adding their collection items. The app's design prioritizes direct interaction without requiring account creation.

  • 1Download the Nenrin application from the Apple App Store onto an iOS device.
  • 2Open the application and navigate to the collection management interface.
  • 3Add new fountain pens and inks by inputting relevant details and images.
  • 4Utilize the visual display to browse and organize the collection.
  • 5Set up reminders for pen maintenance tasks, such as ink flushing.

pricing

Nenrin Pricing & Plans

Nenrin operates on a freemium model, offering a free version with core functionalities and a premium tier available via a one-time purchase for enhanced features.

  • Free: Provides access to basic collection tracking and management features.
  • Nenrin Pro: Available as a single, one-time purchase, unlocking all advanced features and functionalities.

Pros

  • +Specialized for fountain pen and ink collections.
  • +Emphasizes user privacy with no accounts or tracking.
  • +Offers a visual display for collection management.
  • +Includes practical features like ink flushing reminders.
  • +Supports data import from CSV and export to CSV/JSON.

Cons

  • −Exclusive to the iOS platform, limiting access for Android or desktop users.
  • −Lacks community features or a marketplace for trading, unlike some competitors.
  • −Requires a one-time purchase for Nenrin Pro to access all features.

Similar Tools

Nenrin vs Competitors

Nenrin distinguishes itself in the collection management market through its iOS-exclusive focus, privacy-centric design, and specialization in fountain pen and ink collections, contrasting with more general or community-oriented platforms.

1
Penpal↗

It offers collection tracking, usage statistics, and a community aspect with a marketplace for previously loved pens.

Penpal provides a free tier and cross-platform access (web and mobile) with community features, unlike Nenrin which is iOS-only and focuses on individual collection management without a social aspect.

2
Altova MyCollections↗

It is a completely free, cross-platform app (iOS, Android, Windows) for cataloging various types of collections.

While completely free and available across multiple platforms, Altova MyCollections is a general collection app, meaning it requires more manual setup and customization to manage fountain pens and inks compared to Nenrin's specialized interface.

See every Nenrin alternative, compared→

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