What the Cheapest eBay Repricer Actually Costs — and What You Should Never Pay For

The True Cost Tiers: Free to $199

Undercut's pricing is designed so you only pay when repricing is actually generating returns. Every tier includes the same core safety guarantee — a per-item hard floor that prevents any listing from selling below your cost.

• Free: 25 active listings, no credit card, unlimited floor rules. Enough for a new seller to test repricing on their best SKUs.
• Starter ($29/mo): 100 listings. Repricing runs on a standard schedule. Right for part-time sellers with a focused catalog.
• Pro ($79/mo): 1,000 listings, 15-minute reprice cycles, and AI aggressiveness tuning — tells the algorithm how hard to chase the lowest price.
• Scale ($199/mo): 10,000 listings, same 15-minute cycles as Pro, plus priority support. Built for high-volume operations that need the catalog capacity.

Worked Example: Setting Your Floor Before You Reprice a Single Listing

The cheapest repricer is useless if it sells your inventory below cost. Before activating any repricing tool, you need a hard floor per SKU. Here's a real calculation for a common scenario — a used electronics accessory.

Item cost: $8.00. Shipping (you pay): $4.00. eBay final value fee: 13.25% of sale price. Minimum acceptable margin: 15%.

Floor calculation: You need to recover $12.00 in hard costs, plus 13.25% in fees, plus 15% margin on top. Working backward: Floor = (Cost + Shipping) ÷ (1 − Fee% − Margin%) = $12.00 ÷ (1 − 0.1325 − 0.15) = $12.00 ÷ 0.7175 ≈ $16.73.

Round up for safety: set your floor at $17.00. Undercut will never reprice below that number, no matter how aggressively competitors drop. That's the protection the free plan gives you on day one — before you've spent a cent on a subscription.

What You Should Pay For — and What You Shouldn't

Not every repricing feature justifies a higher monthly fee. Here's an honest read on where the upgrade value actually lives.

• Worth paying for: Faster reprice cycles (Pro/Scale) if you sell in competitive categories like electronics or media, where listings turn hourly.
• Worth paying for: AI aggressiveness tuning (Pro+) if you have a mixed catalog — some SKUs should chase the floor hard, others shouldn't.
• Not worth paying for at the start: the Scale plan's extra capacity if your category moves slowly or your catalog is small. Collectibles, vintage, and handmade items rarely need the fastest cadence, and Scale costs more for listing headroom you may not use.
• Not worth paying for ever: Any tool that doesn't let you set a hard per-item floor. Speed without a floor is how sellers accidentally liquidate inventory at a loss.
• Not worth paying for: Per-listing setup fees, 'AI insights' dashboards with no repricer underneath, or tools that charge extra for floor-rule features.

How to Evaluate 'Cheap' vs. 'Affordable'

A $9/month repricer that reprices once per day and has no floor protection will cost you more than a $29/month tool that keeps you profitable. Cheap and affordable are not the same thing when your inventory is on the line.

The right benchmark is cost per listing per month. At Starter tier, $29 for 100 active listings is $0.29 per listing. If repricing wins you one extra sale per week on even a handful of those listings, the subscription pays for itself within days.

For sellers on the free plan (25 listings), the benchmark is simpler: $0.00. Start there. Graduate to Starter only when your active catalog outgrows 25 SKUs — not before.

When to Upgrade: Practical Signals, Not Upsell Pressure

You should move from Free to Starter when you consistently have more than 25 active listings you want repriced. You should move from Starter to Pro when you notice competitors beating your price within hours of your last reprice cycle — that's a signal that 15-minute cycles and AI tuning will recover sales you're currently losing.

You should move to Scale ($199) only when your catalog exceeds roughly 1,000 active SKUs and you operate in categories where speed matters. For most independent eBay sellers, Pro is the practical ceiling. Scale is built for catalog-level operations, not for sellers with a few hundred listings.

There is no pressure to upgrade. Every plan includes the hard floor. Every plan is month-to-month.