Compare
Vendlen and Teikametrics.
The closest comparison on this shelf: both are specialists, both are bought by a seller running their own account. What separates them is what the bill follows as you grow, and where the arithmetic behind a rule lives.
- What Vendlen covers
- Advertising, profit and inventory, on Amazon United States
- Their column
- Read off their own pricing page, 28 August 2026
- No price row
- Models compared, not numbers put side by side
What Vendlen carries
- 4Trigger modesEach carries its own published arithmetic, rather than a threshold you assemble yourself.
- 5Rule familiesBidding, dayparting, negation and unnegate, negative word, and keyword import. Blacklist and Whitelist sit at ASIN level beside them.
- 14Campaign typesSix Sponsored Products, five Sponsored Brands, three Sponsored Display — one campaign per type per selected ASIN.
- 180Days a rule can readThe ceiling. The ladder opens from 90 days to 180 as it rises, and an Automation Window add-on buys the difference on a lower step; no plan and no add-on goes past 180.
Side by side
What happens as you grow.
Their Essentials plan is flat to $10,000 of monthly ad spend and adds 3% above it. Both follow what you spend; the difference is the shape. Theirs takes a percentage above a threshold, ours moves you a published step and never takes a share on top.
What the bill scales with
Vendlen
Your own monthly ad spend, in seventeen published steps from $79 a month. Spending more can move you a step, but the step is the whole price and it is published — no share of spend is taken on top.
Teikametrics
Essentials is a flat $149 a month annually, or $179 monthly, for up to $10,000 of monthly ad spend. Above that, Advanced adds 3% of ad spend over $10,000.
Where the arithmetic lives
Vendlen
Four named trigger modes carrying published arithmetic: Standard Criteria, Loss Budget Guard, Momentum Guard and Performance Deterioration. You pick the mode; the calculation is specified.
Teikametrics
Their plans are described around the ARI strategic suite — Ads, Catalog, Inventory and Insights — with AI bidding across the tiers.
How wide it reaches
Vendlen
Amazon United States. One marketplace, and the depth goes into the decision rather than across the channels.
Teikametrics
Amazon and Walmart, with Amazon DSP, Walmart Onsite Display and AMC on the higher tiers, plus Refunds Recovery on every tier.
Teikametrics column: their pricing page, 28 August 2026. Nothing here says what they cannot do. Plans move — check theirs before you model anything, and tell us if a row is out of date.
Buy theirs, not ours
Three cases where Teikametrics is the better buy.
You sell on Walmart as well
Amazon and Walmart in one tool, with Walmart Onsite Display on the higher tiers. Vendlen is Amazon United States only.
You want refunds recovery in the same place
Their plans list Refunds Recovery on every tier. Vendlen accounts for reimbursements and clawbacks on their own lines in Profit Intelligence, but it does not chase them for you.
You have many ASINs and modest ad spend
A flat fee to $10,000 of spend can work out simpler than a seventeen-step ladder. Do the arithmetic on your own account: that is the honest way to settle it, and it is not always going to land our way.
Rules you can read back.
Four trigger modes, each carrying published arithmetic, and every change recorded with what the value was before. Connect the account you already run.