
Free
In-App Purchases
About
InkPair Lab is a private compatibility journal for fountain pen people who test pens, nibs, inks, and paper together.
Create a Pen x Ink x Paper test, save your own observations, and keep a writing sample beside the ratings that matter: flow, dry time, feathering, bleedthrough, shading, sheen, and overall feel. Build a personal history of what writes beautifully on your actual paper, not a generic catalog of someone else's results.
Use InkPair Lab to test combinations, compare behavior, track currently inked pens, remember cleaning history, spot similar owned ink colors, and export private summaries or JSON archives through the system share sheet.
InkPair Lab keeps records local by default. There is no account, advertising, analytics SDK, tracking, developer cloud sync, public profile, marketplace, AI recommendation engine, calibrated color measurement, chemical advice, archival guarantee, waterproof claim, or cleaning guarantee.
Terms of Use/EULA: https://estreamedia.my/inkpairlab/terms
Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://estreamedia.my/inkpairlab/privacy
Support: https://estreamedia.my/inkpairlab/support
Show more
What's New in InkPair Lab
1.0
July 21, 2026
Subscription plans
Monthly Pro
Monthly unlimited local tests
$3.991 Month
1
In-App Purchases
$49.99
Lifetime Pro
One-time unlimited local tests


