These are the two biggest heavyweights in the SEO software world.

Both generate a (rumored) $40-$50M per year.

Both are used by nearly every SEO pro on the planet.

Both have their pros and cons.

But which one is growing the fastest (in terms of overall brand popularity)?

Well, it does look like searches for “Ahrefs” is growing faster than “SEMrush”.

Also, absolute monthly search volume for SEMRush is still higher than Ahrefs (49.5k vs. 33.1k).

But if this pattern continues, Ahrefs may overtake SEMrush in search popularity soon.

Either way, it will be interesting to watch.