The honest comparison
Günther vs BidX
Rules-plus-ML with an annual handshake.
BidX (Darmstadt, now part of Worldeye) covers the classics: hybrid bidding, dayparting, white-label for agencies. The catch: the self-service platform is €495/mo plus a percent of connected spend that isn’t published, on an annual commitment. And each keyword waits at least three days between bid changes.
| BidX | Günther 🤖✨ | |
|---|---|---|
| Pricing | $195/mo Essential (to $10k spend); Self-Service €495/mo + % of connected ad spend (rate not published); Managed €1,995–4,995/mo + % | €59/mo flat, all marketplaces, every feature included |
| Contract | annual commitment with monthly billing; the only shorter option is a paid 3-month proof-of-concept. No free trial | cancel anytime, no onboarding fee, no minimum term |
| Bidding | nightly ML runs plus optional if/then rules; each keyword waits at least 3 days between adjustments | every keyword evaluated every day; cooldowns come from the data, not a fixed 3-day wait |
| AI agent | no: the “ChatGPT” feature generates keyword ideas in the campaign wizard, it doesn’t act on your account | Günther chats: he reads your account, proposes changes with the reasoning, and executes after you hit Approve |
| AMC insights | paid add-on (€295/mo for default reports) | included |
| Best for | agencies wanting white-label; sellers $5k+/mo spend (their own docs say less isn’t economical) | operators of any size: €59 flat is economical at every spend level |
Pricing
BidX: $195/mo Essential (to $10k spend); Self-Service €495/mo + % of connected ad spend (rate not published); Managed €1,995–4,995/mo + %
Günther: €59/mo flat, all marketplaces, every feature included
Contract
BidX: annual commitment with monthly billing; the only shorter option is a paid 3-month proof-of-concept. No free trial
Günther: cancel anytime, no onboarding fee, no minimum term
Bidding
BidX: nightly ML runs plus optional if/then rules; each keyword waits at least 3 days between adjustments
Günther: every keyword evaluated every day; cooldowns come from the data, not a fixed 3-day wait
AI agent
BidX: no: the “ChatGPT” feature generates keyword ideas in the campaign wizard, it doesn’t act on your account
Günther: Günther chats: he reads your account, proposes changes with the reasoning, and executes after you hit Approve
AMC insights
BidX: paid add-on (€295/mo for default reports)
Günther: included
Best for
BidX: agencies wanting white-label; sellers $5k+/mo spend (their own docs say less isn’t economical)
Günther: operators of any size: €59 flat is economical at every spend level
What BidX does well:
- ✓Hybrid model: ML defaults with custom if/then rules on top
- ✓Dayparting with a 4-hour-slot heatmap
- ✓White-label platform for agencies
Three days is a long time in an auction
BidX’s automation waits at least three days per keyword between changes. Günther evaluates every keyword every day and moves when the math says so, with attribution-aware cooldowns where they actually protect you.
The percent nobody prints
The self-service price is €495 plus a share of your connected ad spend, and the rate isn’t on the pricing page. Günther’s pricing page is one sentence.
Let the duck take it from here.
€59/mo flat, every feature included, cancel anytime. Günther reads your account on day one.
Join the betaSources
- bidx.io/en/pricing (accessed 2026-07-09)
- BidX docs: automation in detail (3-day cooldown)
- Worldeye acquires BidX (May 2025)
- OMR reviews: BidX (4.7/5 at time of writing)
Competitor facts checked on 2026-07-09 against the linked primary sources. Spotted something outdated? Tell us and we’ll fix it. The ducks insist on fair fights.