What is the best POS for a small shop or duka in Kenya?

For a duka the worry is usually cost and complexity, not features. The honest answer is that a small shop does not need a heavy supermarket system; it needs the basics done reliably: ring a sale, take M-Pesa, issue a compliant invoice, and know at the end of the day what actually came in.

The terminal included on annual billing removes the upfront hardware cost that puts most small traders off, and offline-first selling means a dropped line never stops a sale. Because billing is month to month with a money-back guarantee, you can run your real sales through it first and only keep going if the daily figure earns its keep.