Nenrin — Pen & Ink Collection

Nenrin — Pen & Ink Collection

Your pens and inks, kept well

4 ratings
2 reviews
Free
In-App Purchases

Details

Released
September 9, 2026
Updated
October 23, 2026
Nenrin — Pen & Ink Collection video #1 for iPhone
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About

Organize your fountain pen and ink collection with detailed entries, including photos and personal stories. Track inked pens, manage your wishlist, and share your collection visually. Syncs via iCloud with no ads or tracking.

✓Import CSV exports from other apps/spreadsheets
✓Detailed pen and ink cataloging
✓Interactive ink bottle visualization
✓Track inked pens and rotation
✓Manage pen wishlists (grails)
✓Create shareable collection cards
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What's New in Nenrin

1.2.0

October 23, 2026

Every pen and ink now has a life. • Its page tells the story: when it arrived, its first ink, every ink since, and a ring for each year with you. • When something leaves (gifted, sold, traded, lost, finished), you can say how, and the day if you want. Its life stays whole. • A fill recorded wrong? Correct the ink, the pen or the dates right at the line. • Moments no longer need a photograph: a place, a date, one line. • Share a life as a card, with its dates and its rings. • For a grail you found, the day you declared it. • In Inked, tap a pen's ink to open that ink.

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Subscriptions & In-App Purchases

$20.00

Nenrin Pro

Unlimited pens and inks. Pay once, yours forever.

User reviews

Order to Chaos

I never write reviews for apps but there is a first time for everything. I am autistic and fountain pens quickly became a hyper fixation. I ended up with 56 inks (mostly samples) and 18 pens in 6 months. Sounds simple till you can’t remember what color looks like what. So quickly you get the swatch book, so you know what the ink looks like but then you end up with multiple pens inked with different colors and you can’t remember which one. This app solves so many of these issues. It lets me know what I have, what the colors look like, what pen has what ink, even when to clean them. Better yet I can go to a stationary store and not ADHD buy a color I already have cause my collection list lives on my phone. It’s one of the best apps I’ve ever paid for and I’m so glad to have found it.
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Response from developer

Thank you — you've described the problem better than I have. Nobody can hold 56 colours in their head, and you shouldn't have to. If you haven't come across it yet, the newest version can scan a swatch card and split it into separate inks — built for exactly that pile of samples. — Maurizio

Pen and Ink

Perfect for fountain pen lovers, writers and artists.
Amazing choice of different types of inks,colors and of course, pens.

Response from developer

Thank you — that's exactly what it's for. If anything in it ever gets in the way of the writing, tell me; it's one person building this and I read every word. — Maurizio

Developer apps

FAQ

How many pens and inks can I add to Nenrin for free?

The free version of Nenrin allows you to manage up to three pens and three inks. All features, including import, are available at this tier.

What is Nenrin Pro and how much does it cost?

Nenrin Pro is a one-time purchase that unlocks unlimited pens and inks. It also provides alternate app icons and removes the small mark from shared collection cards. It is not a subscription.

Can I import my existing pen collection into Nenrin?

Yes, Nenrin offers free CSV import for everyone, allowing you to bring your existing pens, inks, and their details from other apps or spreadsheets into Nenrin.

Does Nenrin have ads?

No, Nenrin is ad-free and does not include any advertisements. The developers state there is no analytics or tracking, ensuring your data remains private.

How does Nenrin handle syncing and data privacy?

Nenrin syncs your collection through your own iCloud, requiring no accounts. It explicitly states no analytics, ads, or tracking, ensuring your collection data is private.

What makes the ink visualization in Nenrin unique?

Ink bottles in Nenrin are interactive; they lean when the phone tilts, slosh when tapped, and display realistic fill levels with a moving waterline. Sheen and shimmer are represented as colors, not just checkboxes.

How often is Nenrin updated?

The latest version, 1.1.0, was released on September 27, 2026, indicating a recent update. The app was initially released on September 9, 2026.

What devices does Nenrin support?

Nenrin is currently supported on iPhone devices.