Impact Analysis

This page tracks the impact of VWO SDK on different parameters for an app.

Launch Time

The SDK is designed to be launched in the background, ensuring that it does not impact the launch time of your app. Asynchronous initialization is the recommended approach for optimal performance.

Increase in IPA file size

When an IOS app is integrated with the VWO SDK, the increase in the size of the IPA file is around ~850 KB.

Installation TypeSize (in KB)
VWO_insights~800 KB
VWO_insights/SSZipArchive~58 KB

IOS Application Analysis

Here is a summary of the IOS application analysis. This analysis includes a sample IPA with and without the Insights SDK.

IPA Size
(without SDK integration)
5.5 MB
IPA Size
(with SDK integration)
6.3 MB
Increase in IPA size~850KB

API Calls

VWO SDK makes two types of API calls to VWO CDN.

  1. AppSettings- During SDK initialization, a single request is made to fetch settings, with two retry attempts. If this initial request fails, the SDK does not make any further attempts to fetch settings. This approach ensures consistent app behavior throughout an ongoing session.
  2. DataSync - Data synchronization for session recording and heatmaps is facilitated through a dedicated request. In the event of a failure, the SDK keeps track of the issue and will attempt to resend the data after a specified interval.

Please note that these mechanisms are implemented to maintain the stability and reliability of the SDK's functionality.

Network Usage & Response time

APINetwork TypeBandwidth(Usage)Time Taken
AppSettings3G~1KB< 0.5 sec
AppSettings4G / 5G~1KB< 0.5 sec
AppSettingsWiFi~1KB< 0.5 sec
DataSync(per API-request)3Gmin:- ~50KB
average:- ~130KB
max:- ~180KB
< 2 sec
DataSync(per API-request)4G / 5Gmin:- ~50KB
average:- ~130KB
max:- ~180KB
< 1 sec
DataSync(per API-request)WiFimin:- ~50KB
average:- ~130KB
max:- ~180KB
< 1 sec