About this app

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

Audience growth

Ratings growth

Steady

7-day gain +0

Ratings / day 0.0

30-day gain +0

US rating-count history

0 ratings

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking