> For the complete documentation index, see [llms.txt](https://docs.cosmocloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cosmocloud.io/resources/environments/environment-tier-types.md).

# Environment Tier Types

An Environment's **Tier** tells Cosmocloud the expected scale and resources needed for that environment. A combination of Vertical Scaling or Horizontal scaling can be used to get your required tier.

{% hint style="info" %}
Autoscaling is currently a per-request feature, please reach out to [<mark style="color:blue;">**Cosmocloud Support**</mark>](mailto:support@cosmocloud.io) if you need it.
{% endhint %}

## Vertical Scaling

You can vertically scale your applications from switching from one Tier type to another where you have more CPU and RAM resources available -

| Tier Type | Resources              | Description                                                                      |
| --------- | ---------------------- | -------------------------------------------------------------------------------- |
| Shared    | Shared CPU & RAM       | Meant for trials, POCs and testing environments.                                 |
| Low       | Dedicated vCPU and RAM | Meant for low traffic web apps with small scale or staging environments.         |
| Power     | 2x resources than Low  | Meant for medium to high traffic applications for production ready envrionments. |
| Boost     | 4x resources than Low  | Meant for High CPU and RAM utilisation for heavy resources and heavy load.       |

## Horizontal Scaling

You can increase the number of instances per tier type when you need to horizontally scale your application environment. The configurations available are -

{% hint style="info" %}
For actual pricing based on Cloud Provider and Region, please [<mark style="color:blue;">**check this page**</mark>](https://cosmocloud.io/pricing).
{% endhint %}

<table data-full-width="true"><thead><tr><th>Tier Type</th><th>Tier</th><th>Instances Scale</th><th>Max # of API calls (per day)</th><th data-type="checkbox">High Availability</th></tr></thead><tbody><tr><td>Shared</td><td>(S0) Shared-0</td><td>Shared, 1x</td><td>1000</td><td>false</td></tr><tr><td>Shared</td><td>(S1) Shared-1</td><td>Shared, 3x</td><td>3000</td><td>false</td></tr><tr><td>Shared</td><td>(S2) Shared-2</td><td>Shared, 5x</td><td>5000</td><td>false</td></tr><tr><td>Low</td><td>(L0) Low-0</td><td>1x</td><td>No cap</td><td>false</td></tr><tr><td>Low</td><td>(L1) Low-1</td><td>3x</td><td>No cap</td><td>true</td></tr><tr><td>Low</td><td>(L2) Low-2</td><td>5x</td><td>No cap</td><td>true</td></tr><tr><td>Low</td><td>(L3) Low-3</td><td>7x</td><td>No cap</td><td>true</td></tr><tr><td>Power</td><td>(P0) Power-0</td><td>1x</td><td>No cap</td><td>false</td></tr><tr><td>Power</td><td>(P1) Power-1</td><td>3x</td><td>No cap</td><td>true</td></tr><tr><td>Power</td><td>(P2) Power-2</td><td>5x</td><td>No cap</td><td>true</td></tr><tr><td>Power</td><td>(P3) Power-3</td><td>7x</td><td>No cap</td><td>true</td></tr><tr><td>Boost</td><td>(B0) Boost-0</td><td>1x</td><td>No cap</td><td>false</td></tr><tr><td>Boost</td><td>(B1) Boost-1</td><td>3x</td><td>No cap</td><td>true</td></tr><tr><td>Boost</td><td>(B2) Boost-2</td><td>5x</td><td>No cap</td><td>true</td></tr><tr><td>Boost</td><td>(B3) Boost-3</td><td>7x</td><td>No cap</td><td>true</td></tr></tbody></table>