Which agents get found — and which ones actually work
RankBlob started by measuring where apps stand in App Store search. Agents have no single store, so we’re measuring the shelves that exist — and building the second half of the picture with the people who run these things. Two axes, kept separate on purpose:
Most found — directory standings, measured by us and published below. Most vouched for — effectiveness reports from identified builders in the task rooms: which agent, which task, how long in production, what it replaced. The first axis is live as a pilot. The second opens with the task rooms.
Customer service agents
Aissist.io leads the shelf today — see all twelve standings.
See the standings →Coding agents
a0.dev leads the shelf today — see all twelve standings.
See the standings →Sales agents
Jason AI SDR Agent leads the shelf today — see all twelve standings.
See the standings →Why split the axes
Every agent leaderboard that mixes marketing reach with quality teaches builders to buy reach. Keeping the axes apart makes the gap itself the signal: an agent everyone finds and nobody vouches for is a warning; an agent builders vouch for that nobody can find is an opportunity — the same opening the Opportunity Report looks for in app keywords, one shelf over.
How the pilot works
Three task categories, one directory (AI Agents Directory), standings read in listed order on October 21, 2026, with the directory’s badges and scores attributed as its own. More directories, more tasks, and weekly re-measurement follow. Method notes live on each standings page.