Engineering
Building for the phone in the customer’s hand
Our users are on mobile data and mid-range phones. That shapes every decision we make.
Fanisi Technologies, 15 October 2026, 4 min read
Most people who use Tenga and Knotly open them on a phone, often on mobile data, sometimes where the signal comes and goes. We design for that phone first and treat the desktop as the extra.
Make it light
Every image and script costs the customer money in data. We compress images, load what is further down the page only when it is needed, and test on mid-range Android phones, not just new iPhones.
Make it work when the network doesn’t
Knotly can be installed to the home screen like an app and is built to work even where the network doesn’t, so a guest at a venue with poor signal can still open the invitation.
Meet people where they already are
- Tenga is on both the App Store and Google Play, so nobody is left out by their phone.
- Support runs over WhatsApp, which customers already use every day.
None of this is exotic. It is simply what building for East Africa looks like when you take the user seriously.