Todoist Performance Benchmarks (2026)

A repeatable method matters more than an impressive result. Whoever measured Todoist, including you, should be able to say what data was used, how large it was, how many times the test ran, and what varied between runs; strip any of that away and two people will get two different numbers and both will be right. So rather than reconciling published figures, set up one small honest test of your own: realistic data, repeated runs, and a note of anything else the machine was doing. It will disagree with the marketing sometimes, and it will be correct.

Most productivity tools are fast at demo scale, so the honest speed test starts where the demo ends. Load Todoist with the biggest real case you have, then do ordinary work in it for a stretch and watch whether the pauses grow with the data. Perceived speed, how quickly asking turns into something usable, is what decides whether you keep a tool, long after any measured number is forgotten.

Peak performance gets the attention, but the trait that decides whether a tool stays in your stack is how it handles a bad day. Interrupt Todoist mid-task once during your evaluation and watch what happens to the work in progress; look at whether its errors name a cause or merely apologise; and find out whether it publishes an incident history with real entries. Loud, recoverable failure is a feature, the tools that hurt you are the ones that fail without saying so.

What Todoist costs you in machine terms, memory, processing, storage, bandwidth, only becomes visible at scale or on modest hardware. If you are running it alongside a full working set of other tools, or on an older machine, check that footprint before committing rather than after.

Published comparisons are written against someone else's requirements, which is why they so often disagree with each other. Rebuild the productivity comparison around your own material instead: the same real task, the same volume, run through each contender in turn. Give Todoist the task-manager and to-do-list work it is built for, and give every rival exactly the same job, since a fair test is the only kind worth running. Note where each one made you stop and think, because that hesitation is the cost you will pay repeatedly, and it never shows up in a table of ticks.