# Overview

> A quick tour of the Stock, Catalog, History and Stats pages

DiapStash is organised around five tabs in the bottom navigation bar: **Stock**,
**Catalog**, **History**, **Stats** and **Settings**. This section explains how to
use the first four; **Settings** has its own [dedicated section](/application/settings).

![The five bottom navigation tabs](/images/guide/overview/bottom-tabs.png)

## Stock

The **Stock** tab is where you keep track of how many diapers you have and where they
are stored. It shows one card per diaper **type** in stock, with a size/quantity button
for each **size**, and a header with per-category counters.

From here you can start a **change** in one tap on a *size/quantity* button.

See [Stock page overview](/application/stock).

## Catalog

The **Catalog** tab is the community-maintained database of adult diapers. Browse or
search for a **type**, open its page to read its features, sizes and community ratings,
create your own **custom types**, and propose them for the official catalog.

The catalog is also where you add diapers to a stock, adjust a quantity, or move
diapers between stocks — every stock entry is opened from its type page.

See [Catalog & type details](/application/catalog).

## History

The **History** tab lists every **change** you have logged, with its diaper type,
condition (wet, soiled, leak) and timing.

## Stats

The **Stats** tab turns your history into figures and graphs: time spent in diapers,
number of diapers used, day/night ratio, average cost and more. You can also generate
a shareable image of your stats.