On a Mission

As you read this, an estimated 1.5 billion people around the world are learning English. Sentence Stack was created to develop the best English language education tool in the world and to make it available to everyone regardless of their geographical location or socio-economic background. Sentence Stack is powered by a massive search engine containing 1.2 billion sentences which allows anyone to improve their English through contextual learning of words, phrases, and idioms. In addition, it offers a built-in sentence corrector which offers free grammar, spelling, and punctuation checking.

Since launching, language learners from every country in the world have benefited from a tool that encourages curiosity, language exploration, and rapid learning. World-class language tooling provided at no cost to anyone with Internet access. This vision is what drives us each day. We hope you enjoy our service and that your language learning journey is a pleasant one.

Green Initiatives

The environment is a concern that is near and dear to our hearts, so it is with great joy that we announce the following initiatives to make the natural world a better place. Through your support of this website, you too can share in the strides we are taking together in the areas below.

Planting Forests

With your help, we are planting a forest. When you answer surveys or subscribe to our premium membership, trees are being planted thanks to your actions. Together, we can plant 100,000 trees by 2030.

Carbon Zero

In addition to the CO2 absorbing effect of trees, we want to ensure the power we use for server infrastructure, GPUs, CPUs, etc. does not have a negative impact on the environment. So we are committing to be carbon neutral by 2030. Specifically, this means that 100% of our energy usage will be purchased or offset through wind, solar, or other renewable energy sources.