RedHen Labs vs Merch Jar
Merch Jar is an Amazon PPC automation platform priced with an ad-spend allowance. Standard is $199 a month billed annually or $300 monthly and includes $7,500 of monthly ad spend; Premium is $399 or $600 and includes $20,000. Above the allowance, their page says "Standard's rate is 3% with annual billing or 4% with monthly billing," and Premium's is 2%.
At $25,000 a month in ad spend on annual billing, that is $724 on Standard and $499 on Premium. Their automation "stays off until you enable it" and, once enabled, "runs automatically."
An allowance, then a percentage
Merch Jar's Standard plan includes $7,500 of monthly ad spend; above that you pay 3% on annual billing or 4% on monthly. Premium includes $20,000, then 2%. At $25,000 a month that comes to $724 on Standard or $499 on Premium; at $50,000, $1,474 or $999. RedHen Labs is $129 at both.
Enabled once, or approved each time
Merch Jar lets you check proposed changes before enabling a rule, and then: "Once enabled, it runs automatically." RedHen Labs keeps approval at the level of each change by default, so you can trust a rule and still see what it does — and hand it over to run on its own when you're ready.
When Merch Jar is the better pick
If you want to build your own automation logic, Merch Jar says "The Copilot and API are included on both" of its plans. We don't offer a public API.
Side by side
- Pricing: Merch Jar: $199/mo annual or $300 monthly incl. $7,500 spend (Standard); $399 or $600 incl. $20,000 (Premium). RedHen Labs: $129/mo flat — never a percentage of ad spend.
- Above the allowance: Merch Jar: 3–4% (Standard) or 2% (Premium) of ad spend. RedHen Labs: Nothing — $129 at any spend.
- At $25K ad spend/mo, annual billing: Merch Jar: $724 (Standard) / $499 (Premium). RedHen Labs: $129.
- How changes are made: Merch Jar: "Automation stays off until you enable it"; then it "runs automatically". RedHen Labs: Approval queue by default — unattended only for the automations you switch on, one-click undo, and Sponsored Display always waits.
- Free trial: Merch Jar: 14 days. RedHen Labs: 14 days.
Pricing and product description checked against merchjar.com on October 5, 2026.
Try RedHen Labs free for 14 days — $129/mo flat, never a percentage of ad spend.
Why we don't charge more
We could charge more. We don't, and it isn't because this is a lighter product — it's because it's a focused one. We built the things an Amazon seller actually touches every week and left out the twenty modules that pad a suite. A focused product costs less to build and less to run, so it can cost less to buy.
The other reason is simpler. By the time a seller has paid referral fees, fulfillment, storage, returns, and advertising, a lot of hands have already been in the till — and then an agency wants a percentage of sales and a tool wants a percentage of spend. The person who designed the product, paid for the inventory, and carries every bit of the risk ends up with the thinnest slice of it. We decided not to be one more toll on that road. $129 is a number we can hold at any account size, which means growing your business never costs you more to keep using ours.