Donezo InboxResearch
Data-backed studies of how email software is priced and what its AI features cost, from the team behind Donezo Inbox. Each study shows its data, its method and our commercial interest up front, so you can check it yourself.
Working papers
- AI features and pricing in email software: a 12-vendor study. What 12 email software vendors charge and which plans include AI features. Ankur Shrestha, October 31, 2026. A working paper that has not been peer reviewed. Full title: The Price of AI Functionality in Email Productivity Software: A Descriptive Analysis of Subscription Tiers and Feature Bundling. Data: doi:10.5281/zenodo.23841631.
- Want today's prices rather than a study? The Email Software Value Index compares plans side by side and is updated as vendors change them.