GoMarble vs Smartly.io: AI Agents With Approval Gates or Enterprise Creative and Ad Automation
GoMarble fits in-house and agency performance teams that want AI agents to analyze many ad and data sources and prepare changes for approval. Smartly.io fits large brands and agencies that produce creative at scale from templates and product feeds and buy by quote.
Choose GoMarble if you want AI agents that read Meta, Google, TikTok and analytics data together and need a person to approve every write. Choose Smartly.io if you want to produce creative at very large scale, generate many campaigns from a few blueprints and sign a yearly contract with a dedicated team. If you also need ready-made and AI audiences, Madgicx does that, from $45 a month.
See how we reached this recommendation| GoMarble | Smartly.io | |
|---|---|---|
| How you pay | Monthly plans sized by ad spend: Copilot $139, Operator $399 and Scale $799 a month, with Enterprise by quote. Annual billing saves about 15%. | Quote only. Its site asks you to book a demo and lists no plans, prices or free trial. |
| Free plan or trial |
A 7-day trial on each paid plan. Its FAQ also describes a free option with 100 one-time AI credits and no card, but that option is not in the plan table.
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We saw no free plan or trial on its pages. Its site asks you to book a demo.
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| Rules and automation |
Agents run continuously and can flag changes such as creative fatigue in Slack. We saw no rule builder described on its pages.
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Triggers switch ads on or off by performance, weather or time of day, and budget moves between selected campaigns by predicted performance.
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| AI actions and agents |
A team of specialist agents scans campaigns, creatives, audiences and search terms, and prepares account changes for approval. It can also be used from Claude and ChatGPT through a connector.
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AI agents that turn briefs into campaigns and adjust budgets were announced in June 2026. Its pages give no release date.
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| Building and launching campaigns |
Its pages list building and launching campaigns as agent plays on the Operator plan and above. Nothing goes live until you approve it.
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Campaign blueprints linked to a product feed generate many campaigns, and a shared space lets teams approve and launch ads.
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| Reporting and analysis |
Tracks spend, ROAS, CPA, revenue and creative performance, and produces reports for your team or clients, with scheduled reports on every paid plan.
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A reporting dashboard, creative insights, a forecast of creative performance before launch, and reach and frequency measurement.
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| Ad platforms covered |
Meta, Google, TikTok and Microsoft Ads, plus GA4, Shopify and Klaviyo, with 80+ more connectors listed.
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Not confirmed: its current platform list. It is described as cross-channel for large advertisers, so check the list with its sales team. |
| G2 rating | 4.8 from 6 reviews | 4.4 from 475 reviews |
Where they differ
How the price grows
GoMarble: The plan follows your monthly ad spend, from up to $50K to above $1.5M. Extra AI credits, ad accounts and seats are sold as add-ons. Smartly.io: It publishes no prices, so we cannot say how the price grows. Terms are set by contract after a demo.
Who each is built for
GoMarble: In-house performance teams and agencies that manage several ad accounts and data sources and want agents to do the analysis. Smartly.io: Smartly.io is built for enterprise brands and agencies with large creative teams. G2 lists an average implementation time of two months.
How each one works
GoMarble: Agents monitor your accounts, explain performance changes and prepare actions. Its pages say nothing changes until you say yes. Smartly.io: You build blueprints, templates and triggers, and the platform generates and runs campaigns from them. Its AI agents were announced in June 2026 without a release date.
What reviewers say
GoMarble: G2 lists 4.8 from 6 reviews, too few to show a pattern. Smartly.io: G2 shows 4.4 from 475 reviews. In its 20 most recent reviews, 12 praise its support team and 5 call the learning curve steep.
Price
| Example | GoMarble | Smartly.io |
|---|---|---|
| Entry level | Copilot, $139 a month: ad spend up to $50K, 5 ad accounts, read-only agents. | No published entry plan: pricing is set by contract |
| Mid level | Operator, $399 a month: ad spend up to $500K, 15 ad accounts, agents that write changes after your approval. | No published mid plan: pricing is set by contract |
| Larger or custom | Scale, $799 a month, up to $1.5M of ad spend; Enterprise above that, custom through sales. | Custom quote for enterprise brands and agencies, sold through a demo |
Our verdict
Choose GoMarble if
- You get a published monthly price for each spend band.
- You get agents that read Meta, Google, TikTok, GA4 and more together in one place.
- You get approval before any write action, with audit trail and approval policies on higher plans.
Choose Smartly.io if
- You get a dedicated team and support that G2 reviewers praise often.
- You get image and video generation, editing and templates that resize ads across formats.
- You get blueprints linked to product feeds, so a few set-ups generate many campaigns.
Neither fits when
You need rules and AI actions that work on your Meta ads, with every change approved by you. We found no audience builder on its public pages. Madgicx has ready-made and AI audiences. Madgicx creates campaigns, ad sets and ads from a chat, paused until you approve. Madgicx sends alerts when something changes in your ad account. Seats and ad generations are unlimited in every plan, from $45 a month.
How we compare: methodology
- How each tool automates: rules, AI actions or both.
- Which ad platforms each covers and how campaigns get built.
- What the price buys and how it grows.
- What recent G2 reviewers praise and complain about.
Published by Madgicx, which competes with both tools. We use each vendor's pricing and product pages (gomarble.ai and smartly.io) and the most recent G2 reviews we could read, with dates listed below. This is our editorial view of fit, not independent test results. Confirm any capability not listed here with the vendor. Its pricing page FAQ mentions plans and prices that do not match its plan table, so we show the table. Smartly.io publishes no prices, and its pricing page returned 404 on 27 October 2026 and again on 5 November 2026.
Frequently asked questions
How much do GoMarble and Smartly.io cost?
GoMarble is from $139 a month. Smartly.io is by quote. GoMarble entry level: Copilot, $139 a month: ad spend up to $50K, 5 ad accounts, read-only agents. Smartly.io entry level: No published entry plan: pricing is set by contract
Does GoMarble have a free trial?
A 7-day trial on each paid plan. Its FAQ also describes a free option with 100 one-time AI credits and no card, but that option is not in the plan table.
Does Smartly.io have a free trial?
We saw no free plan or trial on its pages. Its site asks you to book a demo.
Can GoMarble change my ad campaigns?
Its Copilot plan is read-only. Operator and above can write changes, with human approval before each write action.
How long does Smartly.io take to set up?
G2 lists an average implementation time of two months.
Sources
- GoMarble on G2, reviewed 5 November 2026
- GoMarble pricing, reviewed 5 November 2026
- GoMarble home page, reviewed 5 November 2026
- Smartly.io website (no published prices), reviewed 5 November 2026
- Smartly.io features, reviewed 15 October 2026
- Smartly.io automation docs, reviewed 15 October 2026
- Smartly.io Synapse announcement, reviewed 15 October 2026
- Smartly.io on G2, reviewed 15 October 2026
- Madgicx pricing, reviewed 5 November 2026
