Specifications¶
XpressID is a web application served over HTTPS, whose URL must be embedded in the Secure Frontend Architecture (SFA) of the customer web site.
XpressID loading size¶
Depending on the flows chosen to be used on XPressID, the modules which need to be loaded will vary so the size of the data loaded will also be different. The following list indicates the size of the data which will be loaded for each flow. The release 2026.7 introduced a significant improvement in the size of the packages.
| Capture processes | Before 2026.7 release | Current size |
|---|---|---|
| document | 24.2 MB | 19.3 MB |
| document + video | 53.8 MB | 41.6 MB |
| document + selfie | 53.2 MB | 41.4 MB |
| document + selfie + video | 61.6 MB | 42.7 MB |
| selfie | 36.0 MB | 31.4 MB |
This loading is done once and then the browser caches this information.
Most of this weight comes from the face/document detection models (TensorFlow.js and MediaPipe), not from XpressID's own code. These models are shared across capture processes, so they are only downloaded once even when a flow combines several of them: document and video share the same TensorFlow.js model, selfie and video share the same MediaPipe model, enabling document + video to weigh about the same as document + selfie.
Browser compatibility¶
XpressID has been designed to maximize compatibility and performance across a broad spectrum of devices and browsers. To see the entire browser compatibility specifications:
Desktop Browsers
| Browser Name | Minimum version | Current version |
|---|---|---|
| Chrome | 83 | 142 |
| Firefox | 132 | 144 |
| Safari | 15.4 | 26 |
| Opera | 69 | 123 |
| Edge | 83 | 142 |
Mobile and Tablets Browsers
| Browser Name | Platform | Minimum version | Current version |
|---|---|---|---|
| Chrome | Android | 135 | 142 |
| Firefox | Android | 132 | 144 |
| Edge | Android | 83 | 141 |
| Opera Mobile | Android | 80 | 92.3 |
| Samsung Internet | Android | 13.0 | 29 |
| Brave | Android | 1.85.120 | 1.85.120 |
| Huawei Browser | Android | 16.0.7.301 | 16.0.7.301 |
| Chrome | iOS | 135 | 142 |
| Firefox | iOS | 132 | 144 |
| Edge | iOS | 135 | 142 |
| Opera Mobile | iOS | 80 | 6.1 |
| Safari | iOS | 15.4 | 26 |
| Brave | iOS | 1.85 | 1.85 |
| GSA | iOS | 408.0 | 408.0 |
Webview compatibility¶
XpressID supports the following WebViews:
| Webview Name | iOS | Android |
|---|---|---|
| ✅ | ✅ | |
| ✅ | ✅ | |
| WKWebView native iOS webview | ✅ | - |
| SFSafariViewController native iOS webview | ✅ | - |
| Android WebView native Android webview | - | ✅ |
| Chrome Custom Tabs native Android webview | - | ✅ |
| Trusted Web Activity native Android webview | - | ✅ |
The XpressID is compatible with Meta WebViews, i.e. you can run it in Facebook and Instagram apps for Android and iOS.
We also support native WebViews for iOS and Android. However, we do not guarantee full compatibility or functionality with WebViews from applications built using other frameworks, including hybrid frameworks, the performance and behaviour may vary.
Minimum supported devices version¶
| Devices | Minimum version |
|---|---|
| Android | Android 10 |