> For the complete documentation index, see [llms.txt](https://help.customerglu.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.customerglu.com/guides/sdk-vs-api.md).

# SDK vs API

<table><thead><tr><th width="244.49528246466184">Functionality</th><th width="244.02037127471493" align="center">SDK</th><th align="center">API</th></tr></thead><tbody><tr><td>Loading the campaign and wallet</td><td align="center">Make a one-time call to load wallet and reduce number of network calls.</td><td align="center">Make call every time to load wallet.</td></tr><tr><td>Time to Integrate</td><td align="center">1 Day</td><td align="center">Multi-Day</td></tr><tr><td>Handling Button clicks</td><td align="center">Close, Open and Share handled directly by SDK</td><td align="center">Additional configuration required to bind webview events with native app</td></tr><tr><td>Registering a user</td><td align="center">Token expiry handling is in-built</td><td align="center">Developer effort to handle token expiry</td></tr><tr><td>Use third party messaging tools to load campaigns and wallet directly</td><td align="center">Yes</td><td align="center">No</td></tr><tr><td>Error handling</td><td align="center">Yes</td><td align="center">No</td></tr><tr><td>Load speeds</td><td align="center">500- 700 ms</td><td align="center">800 - 1000 ms</td></tr><tr><td>SDK Size</td><td align="center">250 KB for Android<br>2 MB for IOS</td><td align="center">NA</td></tr><tr><td>Display in-app nudges</td><td align="center">Allows you to run rich preset nudge templates like bottom nudge, interstitial etc along with configurable parameters Background Opacity.</td><td align="center">Sent as a data object which requires developer effort to configure how to display nudges.</td></tr><tr><td>Low internet availability(2G speed)</td><td align="center">Yes</td><td align="center">No</td></tr><tr><td>Dynamic entry points and banners(Upcoming)</td><td align="center">Yes</td><td align="center">No</td></tr><tr><td>Ready push Notification support for Firebase and APNS</td><td align="center">Yes</td><td align="center">No</td></tr><tr><td>Native loader customisability</td><td align="center">Customise Loader color, page etc.</td><td align="center">Not available.</td></tr></tbody></table>