The Smart AI Stack

Reviews

One tool at a time.

Each review sets out what the vendor publishes, names who the tool is not for, and ends with a table of every source and the day we read it.

AI Audio & Voice
ElevenLabs review 2026: the price is clear, the license is elsewhere
ElevenLabs prints its price and its allowance in one sentence. Its Prohibited Use Policy says a free user may not use the output commercially.
8.2
AI Avatars
Synthesia review 2026: what the free plan buys and who it is not for
Synthesia turns a script into presenter-led video. What its plans publish, what the free tier allows, and where it is the wrong tool.
8.2

The tool directory lists every product we have profiled, whether or not it has been reviewed in full yet.

Browse the tool directory