The risk of a collection that lives on one phone
For a dedicated stationery enthusiast, a fountain pen and ink library represents more than just a list of physical items; it is a repository of years of writing history, technical properties, and carefully documented pairing notes. However, this wealth of information often faces a significant vulnerability: it resides solely on a single device.
As developers of recording tools, we view data management from an operational-design perspective. While modern mobile devices are generally reliable, they are not permanent. A lost phone, a hardware failure, or simply the transition to a new device can result in the total loss of your collection history. Without a robust backup strategy, the records of which ink was loaded in a specific pen three years ago, or which paper stock produced the perfect sheen with a particular nib, can be erased instantly.
Our design philosophy prioritizes local-first data to ensure user privacy and speed, meaning we do not use cloud accounts or automatic synchronization services. While this keeps your data entirely under your control, it places the responsibility for “data safety” on the backup system. A recording habit is only as sustainable as the data it produces; therefore, a reliable manual export and import system is a baseline requirement for any collector’s workflow.
What’s in a CSV export vs. a ZIP export
To provide flexibility in how collectors manage their information, we have designed two distinct export formats: the CSV for data review and the ZIP for comprehensive system backups. Both serve different roles in the collection lifecycle.
| Export Type | What it includes | Best for |
|---|---|---|
| CSV | Pen ID, maker, model, nib, current ink brand/color name, load date, and elapsed days. | Reviewing or analyzing a spreadsheet-friendly summary of active pens outside the app. |
| ZIP | Full CSV data for all categories (pens, inks, loads, histories, compatibility notes, wishlist, and tags), a manifest file (format version: 1), and a photos/ folder containing all associated images. | A full device-to-device restore that preserves every record and every photo. |
The CSV (Comma Separated Values) export is optimized for compatibility and analysis. It uses UTF-8 with a BOM (Byte Order Mark) to ensure that text displays correctly when opened in various spreadsheet applications. It is the ideal choice if you want to perform custom statistics or print out a summary of your currently inked pens.
The ZIP backup, however, is the “gold standard” for data preservation. Because it includes every image—from pen and ink bottle photos to specific swab photos in pairing notes—it captures the visual essence of your hobby. It is structured specifically so that the application can understand the complex relationships between items, such as which history entries belong to which pen, making it the essential choice when moving your library to a new phone.
How importing works
Restoring a collection should not be a stressful event that risks overwriting your current progress. In our implementation, the import process is designed to be additive and merging. This means that when you restore a backup from either a CSV or a ZIP file, the system adds the new records to your existing database rather than performing a destructive overwrite.
This “merge-additive” approach provides several safety benefits:
- No Data Loss: Your current active records remain untouched.
- Flexibility: You can import data from different sources or different time periods to consolidate your records.
- Validation: The system checks for a manifest file within ZIP backups to ensure the data format is correct before proceeding.
Importing is a manual, user-initiated action that uses a file picker to select the backup. The tool then processes the entries, relinking photos to their respective pen, ink, or pairing records. This ensures that your local database is updated reliably without the need for an internet connection or an external server.
Why both exports are free
In many management tools, the ability to export or move your own data is often gated behind a subscription or a “Pro” fee. We took a different approach. Starting with version 1.1.0, we decided that data migration—including both CSV and ZIP export and import—should be completely free for every user.
While features that enhance the experience—such as usage-day alerts, advanced hue/brand sorting, detailed statistics, and side-by-side color comparisons—are reserved for Pro users (a ¥980 lifetime purchase), the “right to own and move your data” is treated as a fundamental feature.
This decision stems from our goal to build a tool that acts as a long-term asset for collectors. We believe that you should never feel “locked in” to an application. By making backups free, we ensure that you can commit to years of recording with the confidence that your data will always be yours to take with you.
How Inkcho handles this
We built Inkcho to be the definitive local-first manager for fountain pen and ink enthusiasts. Our export and import services are built directly into the core settings to make data safety a natural part of your routine.
When you generate an export in Inkcho, the system follows a predictable and organized structure:
- Standardized Filenames: CSV exports are named with the pattern
Inkcho_yyyyMMddHHmmss.csv, making it easy to see at a glance when a backup was created. - Comprehensive ZIP Structure: The ZIP backup includes a
manifest.json(formatVersion: 1) and anexport.csvthat defines the relationships between every pen, ink, loading history entry, compatibility note, wishlist item, and tag. - Privacy-First Design: Because there is no cloud sync, all backup files are handled locally through the device’s standard file management systems. You choose where to save your backup—whether that is local storage, a private cloud drive, or an external file service.
By providing these professional-grade data migration tools for free to every user, we aim to solve the anxiety of switching phones or losing years of hobby history. Your collection is a personal journey, and our job is to provide the infrastructure to keep that journey documented and safe.
You can download Inkcho on the App Store to start building your secure collection: https://apps.apple.com/us/app/inkcho/id6763183078.
Summary
Data safety for a fountain pen collection relies on moving beyond single-device storage and establishing a regular backup habit using CSV and ZIP formats. By providing these migration tools for free, we ensure that your years of pairing notes, ink histories, and pen records remain a permanent and portable asset, ready to move with you to any new device.
For a broader look at how different tools compare for managing your collection, see our hub article: Notebook, Spreadsheet, or App? How to Track Your Fountain Pens and Inks
To learn about managing what you plan to buy next, read: From Wishlist to Collection: A Recording System for What You Want
This article organizes information from a recording and organizing perspective. If you notice an error or outdated information, please contact us. Last verified: August 2026
