# PenStock

> Productivity

Canonical page: [https://chrome-stats.com/d/id6797751971](https://chrome-stats.com/d/id6797751971)

## Overview

- **ID:** `id6797751971`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Tina Marcus
- **Category:** Productivity
- **Version:** 1.1
- **Last updated:** 2026-08-19
- **First published:** 2026-08-04
- **Size:** 1.07 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/penstock/id6797751971)
- **Website:** [https://otdefend.com/contact](https://otdefend.com/contact)
- **Privacy policy:** [https://otdefend.com/contact](https://otdefend.com/contact)

## Description

PenStock is a pen and ink inventory management tool specifically designed for stationery enthusiasts. It can record the brand, color, price and usage status of pens, ink and notebooks, track the writing duration and estimate the remaining lifespan. It also allows for the establishment of a color chart library for ink to facilitate selection and daily management.

## Rankings

- #1,194,930 — Overall

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- [StockByMe](https://chrome-stats.com/d/id6761483934) — 5.00 / 5
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Source: [Chrome-Stats](https://chrome-stats.com/d/id6797751971)