Over the last year, we’ve grown Keepsafe Photo Vault from a technically simple app that imports photos from your camera roll into a sophisticated product that utilizes encryption, real-time sync, and other useful and cutting-edge technologies. We made the decision to start expanding our engineering team a few months ago…

Optimize Your Keywords When we launched Keepsafe in the App Store in 12 languages, it was painful to research and optimize keywords for each market. Like many engineering teams, craftsmanship is in our blood! We built an internal tool to make the work easier and more efficient. …

TLDR: After close to four years of developing aiohttp under Keepsafe’s repository, we’ve recently determined that aiohttp has matured to a point that would benefit from being hosted under aio-libs. Over the past three years aiohttp has grown from a small internal web framework to a serious standalone project that…

Immer wieder werde ich von Leuten in Deutschland gefragt: Warum Silicon Valley, Software kannst du doch überall schreiben? Nach über drei Jahren Leben und Arbeiten im Silicon Valley habe ich ein ganz gutes Gefühl für die Unterschiede. Zur vorherigen Frage: Ja, Software kann man auf der ganzen Welt entwickeln. Software-Firmen…

The second to last regatta of the 2015 season in San Francisco Bay was won by a boat not usually in the top five. I later learned they are great sailors and it was their first win in the class since joining three years ago. They attributed it to excellent…

At the beginning of 2012 I started developing for mobile devices. Before that, I performed some graph visualization work and backend oriented development. In the software engineering world, I have grown accustomed to a sense of gravity, where by “gravity” I mean a certain set of basic ideas/laws you can…

This post describes our experience migrating the KeepSafe Android app to the new Gradle-based build system. This is not meant to be a step-by-step tutorial. In this post, I want to focus on some specific cases we have had problems with. This also represents the state of the build tools…

I’ve been programming Android applications for 2.5 years. I mainly work on the KeepSafe Hide pictures app but I also built our Hide SMS app and some other small private projects. Over time, one problem I keep running into over and over again is dealing with resource bloat — which…

TLDR: Implement A/B testing for your app in hours. Switchboard is a lightweight mobile A/B testing framework with consistent user segmentation. It can be used for A/B testing, stage rollout and remote configuration. It’s designed to server high traffic and be as flexible as possible. …