If you want an AI teammate you can message in Slack to make ad changes on request, Viktor is built for exactly that. If you want a fully automated ads manager that runs your Meta and Google campaigns on its own, inside guardrails you set, for one flat price, that is Mebume.
Both tools manage the same two ad platforms. The real differences are how they run (command-and-approve chat versus an autonomous cockpit) and how they charge (metered credits versus a flat monthly fee). This post walks through both, including where Viktor is genuinely the better pick.
Quick take
| Mebume | Viktor | |
|---|---|---|
| What it is | Fully automated ads manager that runs and optimizes campaigns 24/7 inside your guardrails | AI coworker in Slack (and Teams) that executes ad actions when you ask, with approval gates |
| Platforms | Meta and Google (more on the way) | Meta and Google ads, plus 3,200+ non-ad integrations (Stripe, Sheets, HubSpot, and others) |
| Pricing model | Flat $499/mo per business to manage, never a percentage of spend; creative generation runs on credits | Credit-metered: $100 free credits, plans from $50/mo for 20,000 credits, tasks cost roughly 100 to 1,500+ credits each |
| Autonomy level | Basic mode runs hands-off by default; Professional mode adds an approval gate to every action | Approval-first by default; you can pre-approve specific automations |
| Best for | Businesses that want ads managed for them with predictable cost | Slack-heavy teams that want conversational control over each action |
Pricing and features are as of July 2026. Verify on each vendor's site before you buy.
Pricing: flat fee versus credit meter
Viktor charges in credits. Every task consumes some: quick actions run about 100 to 300 credits, complex workflows 500 to 1,500, and larger projects more. The entry plan is $50/mo for 20,000 credits, which Viktor estimates covers roughly 40 to 200 tasks, and plans scale up from there. Unused monthly credits do not roll over. You get $100 in free credits to try it, which is a genuinely low-risk way to start.
The catch is forecasting, and it is the most corroborated criticism in Viktor's early reviews. Four separate Product Hunt reviewers, all otherwise positive, independently flag it: one wants visibility into what triggers automations "to avoid unexpected credit consumption," another writes that "top-up pricing punishes the user," a third that "you have to manage how you deploy, or it can burn through credits." One independent review put realistic costs for a heavy user at $150 to $400 per month with top-ups. (Fairness note: those reviews cover Viktor as a whole, not only its media-buyer product.) None of that is disqualifying, but your bill depends on how much you ask the tool to do, and an active ad account generates a lot of asks.
Mebume is a flat $499/mo per business (one connected ad account) to manage. Not a percentage of your ad spend, and never a meter on the management itself: the fee is the same in a slow week and in a heavy optimization week, which matters precisely because the heavy weeks are when a metered tool costs the most. Creative generation runs on credits, while research and uploads are free. Creating an account is free, and you only pay for accounts Mebume actually manages. Full details are on the pricing page.
If your ad activity is genuinely light, a few tweaks a week, Viktor's $50 floor will cost less than Mebume. If your account needs daily attention, the math flips, and it flips further as activity grows.
How they run: a coworker you message versus a buyer that drives
Viktor's core interaction is chat. You write "pause the retargeting ad set" or "what did we spend yesterday" in Slack, Viktor executes against your ad account, confirms the change with old and new values, and logs it. By default it asks before changing things, and you can pre-approve specific automations. It also reaches beyond ads: it can cross-check Meta revenue against Stripe and export reports to Sheets, because it is a general-purpose AI employee with a media-buying specialty, not an ads-only product.
That design has a real cost, though: the work only happens when someone asks for it. Product Hunt reviewers note that figuring out what Viktor can do, and how to phrase requests, takes experimenting. You are still the media buyer. Viktor is your hands.
Mebume inverts that. It watches your campaigns around the clock and acts on its own, driving toward the goal you pick at setup: "Optimize a set budget", "Scale as long as KPIs are met", or "Hit a set number of conversions". Every action lands in a full audit log, and any optimization can be reversed within 24 hours. In Basic mode you check the log rather than approve requests. In Professional mode, every action waits for your explicit yes, which is close to Viktor's default posture if that is the control level you want. Both modes are included in the flat fee. Mebume has its own optional Slack connection too, with a morning recap, questions answered by mention, and approve, pause, and scale buttons, but management never depends on you being in Slack. The rules behind it were built by operators who have managed over $500K per day in paid ad spend, and you can read more about how it works on the product page.
Platforms and scope
On ad platforms, the two are even: Meta and Google, nothing else yet. Per Viktor's launch materials, its coverage runs deeper on Meta (around 103 actions) than Google (around 37), so Google-heavy accounts should test that side specifically. Mebume manages both platforms with the same engine and adds AI-assisted creative (which runs on credits), a multi-account cockpit, and unified reporting.
Outside ads, Viktor wins on breadth by a mile. If you want the same assistant filing tickets, summarizing docs, and reconciling Stripe, that is Viktor's actual product and Mebume does not compete with it.
When Viktor is the better choice
- Your team lives in Slack or Teams and wants to command ad changes conversationally, with a human approving each one.
- Your ad activity is light enough that metered credits stay cheap, or you want to start at $50/mo (or free, with the trial credits) before committing to anything.
- You want one AI assistant across many tools, not just ads. Viktor's 3,200+ integrations and Stripe cross-referencing have no Mebume equivalent.
- You have media-buying knowledge in-house and want execution speed, not delegated judgment.
When Mebume is the better fit
- You want the ads managed, not just executed. Mebume decides and acts inside your guardrails instead of waiting for instructions.
- You want a bill you can put in a budget. $499 flat beats estimating credit burn, and it stays flat as your activity scales.
- You do not have a media buyer on staff. Mebume's built-in playbook was written by operators who have spent $500K/day, and the guardrails plus audit log keep you in control without requiring expertise.
- You manage more than one client and want each in its own business, with unified reporting across your organization.
One honest note on maturity: Viktor raised $75M from Accel in May 2026 and is growing fast. Mebume is in early access with a waitlist. Both products are young; ask both companies your hard questions.
Verdict
Viktor is a strong conversational operator for teams that want to stay hands-on in Slack and pay per task. Mebume is for businesses that want their ads managed autonomously with a fixed cost and expert defaults. Pick based on who you want doing the driving. If the answer is "not me," Mebume is the one built for that.
FAQ
Is Mebume cheaper than Viktor? It depends on usage. Viktor starts at $50/mo for 20,000 credits, so light usage costs less than Mebume's flat $499/mo. Active accounts consume credits quickly (tasks run 100 to 1,500+ credits each, and one review estimated $150 to $400/mo for heavy users), and Mebume's fee never grows with activity or ad spend.
Does Viktor run campaigns autonomously like Mebume? By default, no. Viktor asks for approval before making changes, though you can pre-approve specific automations. Mebume runs hands-off in Basic mode by default and offers Professional mode if you want to approve every action.
Do both support the same ad platforms? Both manage Meta and Google today. Viktor also connects to thousands of non-advertising tools. Mebume focuses on ad management and has more platforms on the way.
Can I control what Mebume does? Yes. You pick the goal it drives toward at setup and can change it later in settings. Every action is logged, any optimization can be reversed within 24 hours, and Professional mode adds an approval gate to everything.
Ready to see what a fully automated ads manager does with your account? Join the waitlist.
For a comparison with a percentage-of-spend tool, read Mebume vs Otis.
