Amazon PPC bid optimization at a flat price. Never a % of your ad spend.
Upload your Amazon Ads bulk file, get optimized bids, new negatives and harvested keywords back in minutes — with a plain-English reason for every change. Then upload it to Amazon. No account access needed.
We are onboarding the first 20 sellers. Founding members get 3 months of Pro free and 50% off for as long as they stay.
PPC tools got expensive in 2026
Entry plans disappeared, free tiers were cut, and agencies and platforms charging a percentage of ad spend get paid more when you spend more. We think bid optimization should cost the same whether you spend $2,000 or $50,000 a month.
Flat monthly price
Your bill does not grow with your ad budget. No percentage of spend, no add-ons for basic features.
Cancel in one click
No calls, no retention flows. Unused days of a paid month are refunded.
Your data stays yours
Every report you upload can be exported back. No lock-in, no history held hostage.
How it works
Version one works with the bulk files Amazon Ads already gives you. Automatic daily bidding through the Amazon Ads API comes next.
Download your bulk file
In Amazon Ads → Bulk operations, export Sponsored Products for the last 30–60 days with search term data.
Upload it to FlatBid
Set your target ACoS per product or campaign. FlatBid computes new bids, negatives and keyword harvests.
Review and upload back
See every change with its reason, uncheck anything you disagree with, download the file and upload it to Amazon.
What FlatBid does
The bidding engine behind FlatBid already manages ad bids for sellers on other marketplaces. We are bringing it to Amazon.
Target-ACoS bid ladder
Raises bids on targets below your ACoS goal, lowers them above it, in measured steps with floors and caps you control.
Bid-raise check
Every bid increase is measured: week after vs week before. If it did not pay off, the bid is rolled back and the target is not boosted again for two weeks.
Negative keyword mining
Finds search terms that spend without converting and proposes them as negatives — only when several signals agree.
Keyword harvesting
Moves converting search terms from auto and broad campaigns into exact-match targets.
Account-level guardrail
If total ACoS drifts above your limit, FlatBid stops raising bids first and trims the most expensive targets — without pausing your ads.
A reason for every change
No black box. Each bid change comes with the numbers behind it, so you can learn from it or overrule it.
Simple, flat pricing
Planned prices for launch. Founding members pay 50% of these for as long as they stay subscribed.
Free audit
- Upload one bulk file
- Wasted spend by target and search term
- Bid raises that did not pay off
- No changes applied
Starter
- Weekly bulk file optimization
- Up to 25 campaigns
- Target-ACoS bid ladder
- Negative keyword suggestions
Pro Most popular
- Unlimited campaigns and uploads
- Bid-raise check with automatic rollback
- Keyword harvesting
- Account-level ACoS guardrail
- Change history and export
Autopilot Coming next
- Amazon Ads API connection
- Daily bid updates
- Budget pacing alerts
- Multiple marketplaces
Join early access
We are looking for 20 US Amazon sellers running Sponsored Products to shape the first version. Founding members get Pro free for 3 months and 50% off afterwards. All we need is a bulk file export — no Seller Central or Ads account access.
FAQ
Do you need access to my Seller Central or Amazon Ads account?
No. Version one works only with the bulk file you export yourself. You review every change and upload the file back to Amazon. The future Autopilot plan will connect through Amazon's official Ads API, only with your explicit consent, and you can revoke it at any time.
Is FlatBid available now?
Not yet. We are building it with our first sellers. Join early access and we will email you when your account is ready — usually with a free audit of your current campaigns first.
Why a flat price instead of a percentage of ad spend?
A percentage rewards the tool when you spend more. A flat price means our only incentive is to make your existing spend work harder.
Which ad types and marketplaces are supported?
We start with Sponsored Products on the US marketplace. Sponsored Brands, Sponsored Display and other marketplaces will follow based on what early users need most.
What happens to the files I upload?
They are used only to compute your recommendations and are never shared or sold. You can delete your data at any time. See the privacy notice.
Can I cancel any time?
Yes — in one click from your account. Unused days of a paid month are refunded.