vs Perpetua · verified 2026 Q2
A Perpetua alternative
that shows its work.
Perpetua is well-designed and well-known. It is also a black box at $695/mo with no free trial and no inventory awareness. If you ever asked it why a bid changed and got a shrug, that is the gap Mirox closes.
See the side-by-sideAt a glance
Mirox vs Perpetua.
Mirox
Autonomous PPC Intelligence for Amazon sellers — EU-native, transparent, sixteen specialised agents.
- · Free Shadow Mode on your real account
- · Public pricing from €149/mo
- · Full decision trace per bid (CSV export)
- · EU-native: DE, FR, IT, ES, UK, US, JP
Perpetua
Amazon-focused brands spending $100K+/month, US-anchored.
Starting price: $695/mo
Side-by-side
Where each tool lands on the rows that matter.
Verified against vendor pricing pages, G2 and Capterra, and 2026 Q2 analyst notes. No asterisks.
| Capability | Mirox | Perpetua |
|---|---|---|
| Shadow Mode — free, real account, full simulation | Free, no card | |
| Decision transparency — full trace per bid | CSV export | Black box |
| Multi-agent architecture (16 specialists) | Single engine | |
| Seven safety layers between the AI and your ad budget | Basic | |
| Inventory-aware bidding (Sentinel — throttles on thin days-of-cover) | Built in | |
| Bayesian warm-start — sensible bids from hour one | Needs data | |
| EU multi-marketplace native (DE/FR/IT/ES/UK + per-marketplace thresholds) | US-first | |
| Asymmetric semantic embeddings (+19% relevance) | Symmetric | |
| Public, transparent pricing — no demo wall | €149 / €399 / €899 | % opaque |
| Free trial / freemium | Shadow Mode free, indefinitely | Demo only |
| Starting price | €149/mo (or free Shadow) | $695/mo |
Want the full six-vendor matrix? See the full /compare page.
The honest read
When Perpetua is the right answer, and when Mirox is.
Perpetua starts at $695/mo and targets brands spending $100K+/month. It is well-designed, but in 2026 reviews it is repeatedly called out for what it lacks: visibility into margins, inventory, or pricing — and decision logic that prospects cannot inspect.
Where Perpetua wins
Strong UI, established brand among Amazon-only sellers, broad keyword research integrations, mature account-management layer. If you want a familiar tool with a polished surface and you do not need to audit it, Perpetua fits.
Where Mirox wins
Every Mirox bid carries the predicted conversion rate, the relevance score, the agent that proposed it, and the safety checks that were applied. Inventory-aware bidding is built in — Perpetua has no inventory awareness. Shadow Mode lets you watch Mirox on your real account, free and indefinitely, before paying anything; Perpetua is demo-only with no free trial.
Honest verdict
Perpetua is a tool. Mirox is a team — sixteen specialised agents that each leave a trace you can audit. If you ever asked your current PPC tool why a bid changed and got a shrug, that is the gap.
A decision tree, not a sales pitch
Which one fits your team.
Pick Perpetua when
- ·You are US-based, Amazon-focused, and the brand recognition of an incumbent matters.
- ·You do not need to defend bid changes to a CFO or to a client with data.
- ·You are comfortable paying $695/mo before seeing what the AI would actually do.
Pick Mirox when
- You want a full audit trail on every bid, exportable as CSV.
- You sell across multiple EU marketplaces and a US tool with translation will not cut it.
- You want to watch the AI on your real account, for as long as you like, before you pay.
- Inventory-aware bidding is a requirement, not a wishlist item.
Compare against your own Perpetua setup
The matrix is one thing. Your account is another.
Public Shadow Mode opens after the founding cohort wraps in Q3 2026. Once it does, watch it on your real account, side-by-side with Perpetua — free, no card, read-only, for as long as you like, before a cent moves. Spending €5K+/month? Apply for a founding seat now.
Matrix verified 2026 Q2 · disagree with a row? info@mirox.pt