PencilDB
Pen database & market prices
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
PencilDB is a database of mechanical pencils, ballpoint pens, fountain pens and inks. We build it together, and we correct it together.
■ Point the camera, and the pen identifies itself
Move the camera slowly toward the part number printed on the barrel. PencilDB reads the marking and looks it up.
Recognition happens entirely on your device. The photo itself never leaves your iPhone.
■ Keep a record, one pen at a time
Sort pens into "Owned" and "Wanted". Add what you paid, when you bought it, where from, and what condition it is in — as much or as little as you feel like.
Every one of those fields can be left empty.
■ Used prices come into view
Once two or more people have reported what they paid for a part number, the price it actually changes hands for starts to appear.
While only one report exists, no figure is shown. Otherwise what you paid would become "the market price" all by itself.
■ Straight to a shop that sells it
For each part number, the shops selling it today are listed with their prices. Links that earn us a commission are marked as ads.
■ Know the company behind the brand
Company profiles for 64 brands, with every model they make. Founding year, country, and what they have built over the years.
■ Articles
Barrel materials, nib widths, the stories behind the brands — written for people who are serious about pens.
■ What is in it now
2,854 models, 12,460 part numbers, 64 brands.
Sailor / Montblanc / Pilot / Mitsubishi Pencil (uni) / Platinum / LAMY /
Zebra / Pentel / Faber-Castell / Caran d'Ache / Kuretake /
Kaweco / Visconti / Montegrappa / Eboya / WANCHER and more.
Everything comes from the manufacturers' own price revision documents and official sites. Each entry records where it came from.
■ A nickname, a password and an email address. Nothing else.
No real name, no street address. The only thing shown publicly is your nickname.
The email address exists so you can reset a forgotten password; it never appears on screen.
■ Corrected by everyone
Found a mistake? Anyone can submit a correction, photos included. A person reviews them before they go live.
Once two people are friends, they can message each other. Anyone you would rather not hear from can be blocked, and problems can be reported.
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Site https://www.pencildb.com
Terms https://www.pencildb.com/terms
Privacy https://www.pencildb.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Opening the Shops map asked for your location twice in a row. Now it asks only once.
The developer, ideo Entertainment Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- IDEO ENTERTAINMENT INC.
- Size
- 1.3 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Italian, Japanese, Spanish
- Age Rating
4+
- 4+
- Contains
Advertising
Messaging and Chat
User-Generated Content
- Copyright
- © 2026 IDEO ENTERTAINMENT INC.