In This Guide
What Is Cross-Channel Advertising?
Platforms Synter connects to
Agent tools available
Starting price
Cross-channel advertising is the practice of running paid media campaigns across multiple ad platforms from a unified strategy and workflow. The term covers everything from simple multi-platform reporting dashboards to AI Agents that create, execute, and optimize campaigns across a dozen platforms from a single natural language interface.
Most teams define "cross-channel" as covering at least Google Ads and Meta. Mature programs add LinkedIn for B2B, TikTok for consumer reach, Reddit for community targeting, and Amazon for commerce. Each additional platform multiplies the operational complexity.
The key question when evaluating cross-channel tools is not how many platforms they list in their marketing. It is what they can actually do on each one. Reporting-only coverage is very different from full execution capability.
Reporting vs. Execution
Many tools call themselves "cross-channel" because they pull data from multiple platforms into one dashboard. True cross-channel execution means creating campaigns, adjusting bids, rotating creative, managing audiences, and making budget decisions across all those platforms from one place. Very few tools offer this.
Walled Gardens vs. Open Web
Google, Meta, LinkedIn, TikTok, and Reddit are walled gardens with their own native API systems. The open web uses programmatic infrastructure via DSPs and exchanges. A true cross-channel platform needs to bridge both. Synter connects to both walled garden APIs (Google, Meta, LinkedIn, TikTok, Reddit, Pinterest, Snapchat, Microsoft, Amazon, Spotify, Taboola) and programmatic platforms (Google DV360, Amazon DSP).
Platform Comparison Table
| Platform | Type | Platforms Covered | Execution Depth | Starting Price |
|---|---|---|---|---|
| Synter | AI Agent Platform | 14 | Full (create, bid, budget, creative, report) | $99/mo |
| Basis Technologies | DSP + Campaign Mgmt | DSP + search + social | Full (agency-oriented) | % of spend |
| The Trade Desk | DSP | Open web + CTV | Programmatic bidding | % of spend |
| Marin Software | Bid Management | Google, Microsoft, Meta, Amazon | Bidding + reporting | % of spend |
| Kenshoo (Skai) | Bid Management | Google, Amazon, Meta, Apple | Bidding + audiences | Enterprise |
| Smartly.io | Creative Automation | Meta, Pinterest, Snapchat | Creative + social execution | $10K+/mo |
| AdRoll | Retargeting Platform | Display, Meta, email | Retargeting + display | $36+/mo |
| Madgicx | Meta Optimization | Meta, Google (limited) | Rules + creative testing | $49+/mo |
Synter is the only platform in this list that provides full execution depth across 14 platforms from a single interface. Most tools specialize in one layer of the stack: bidding, creative, retargeting, or programmatic. They require complementary tools to cover the full workflow.
Synter: AI Agents Across 14 Ad Platforms
Synter is the AI Agent Operator for Ads. The platform connects directly to 14 ad platforms via official APIs and deploys AI Agents that execute campaigns, manage budgets, rotate creative, and generate reports from natural language instructions.
The 14 platforms Synter connects to: Google Ads, Meta (Facebook and Instagram), LinkedIn, TikTok, Reddit, Pinterest, Snapchat, Microsoft Advertising, Amazon Ads, Spotify Ads, Taboola, Google DV360, Amazon DSP, and X (Twitter).
What the AI Agents Execute
- Campaign creation from natural language briefs
- Ad copy and creative generation
- Bid strategy selection and adjustment
- Cross-platform budget reallocation
- Audience creation from CRM data
- Lookalike audience generation
- Creative testing with rotation
- Performance reporting across all platforms
Platform Coverage Depth
- Google: Search, Display, Shopping, Performance Max, YouTube, DV360
- Meta: Facebook, Instagram, Advantage+, CAPI, Custom Audiences
- LinkedIn: Sponsored Content, Lead Gen, Conversation Ads
- TikTok: In-Feed, TopFeed, Spark Ads, video creative
- Reddit: Promoted Posts, subreddit targeting, interest targeting
- Amazon: Sponsored Products, Sponsored Brands, Amazon DSP
No middleware. Direct API.
Synter connects directly to each platform's official API. No third-party sync layer, no data warehouse dependency. Changes execute immediately. Every action is logged and reversible.
Synter is also the only platform in this category with a public MCP server that connects your AI tools (Claude, ChatGPT, Amp) directly to your ad accounts. This means you can operate campaigns from within your existing AI workflow without switching to a separate interface.
Basis Technologies
Basis Technologies is an agency-focused platform that combines DSP access, search campaign management, social buying, and analytics in one interface. Originally built as Centro, it has evolved into one of the more complete agency-oriented cross-channel stacks.
Basis connects to its own programmatic DSP for open-web display and video, plus integrates with Google Ads, Microsoft Advertising, and major social platforms for paid search and social execution. Its workflow is designed around the agency operating model: client accounts, insertion orders, and campaign trafficking.
Strengths
- Built-in DSP for programmatic buying
- Agency workflow: IOs, billing, client reporting
- Connected TV and digital audio buying
- Unified cross-channel reporting
Limitations
- Pricing scales with spend (not flat fee)
- No AI Agent execution layer
- Designed for agencies, not internal teams
- Limited creative generation capability
Basis is a solid choice for media agencies that need programmatic DSP access alongside search and social. It is not designed for the AI-native workflow where natural language drives campaign execution.
The Trade Desk
The Trade Desk is the dominant independent DSP for programmatic advertising on the open web. It gives buyers access to premium display, video, audio, connected TV, and digital out-of-home inventory through a single bidding interface.
The Trade Desk is not a cross-channel platform in the walled garden sense. It does not connect to Google Ads, Meta, LinkedIn, TikTok, or Reddit. Its strength is programmatic inventory across the open web and CTV. For brands running high-volume display and video campaigns across publisher networks, it is the best option in the market.
Strengths
- Largest independent DSP by reach
- Connected TV inventory at scale
- Kokai AI bidding algorithms
- Data clean room and identity partnerships
- Strong for brand-building campaigns
Limitations
- No access to walled garden platforms
- Minimum spend requirements at scale
- Complex for smaller teams without traders
- No creative generation or AI Agent layer
- Requires separate tools for search and social
The Trade Desk is best used alongside a platform like Synter, not instead of it. Synter handles the walled gardens; The Trade Desk handles the open web. Synter also connects to Google DV360 and Amazon DSP for programmatic needs.
Marin Software
Marin Software is a legacy bid management and cross-channel reporting platform. It connects to Google Ads, Microsoft Advertising, Meta, and Amazon with portfolio bid optimization across these platforms. Its strongest capability is cross-channel budget modeling and bid management at scale.
Marin prices on percentage of ad spend, which becomes meaningful at high budgets. Its platform predates the AI Agent era and the interface reflects that: data-heavy and dashboard-first. Campaign creation still happens in native platforms; Marin handles optimization and reporting on top of what is already running.
Strengths
- Cross-channel portfolio bid optimization
- Proven at large search budgets
- Amazon Ads integration
- Custom attribution modeling
Limitations
- No TikTok, LinkedIn, Reddit, Pinterest coverage
- No campaign creation or creative generation
- Dashboard-era UX
- Percentage-of-spend pricing
Kenshoo, Smartly, AdRoll, and Madgicx
Kenshoo (Skai)
Skai (formerly Kenshoo) is an enterprise bid management platform with strong retail media coverage. It connects Google, Meta, Amazon, and Apple Search Ads with portfolio optimization and audience management. Strong for retail and CPG teams managing large search and shopping budgets. Enterprise pricing. Limited to no TikTok, Reddit, or Pinterest execution.
Smartly.io
Smartly focuses on social creative automation. Its dynamic creative optimization (DCO) runs primarily for Meta, Pinterest, and Snapchat. Its strength is producing thousands of creative variations and testing them at scale. Starting at $10K+/month with annual contracts, it is positioned for enterprise and agency use. It does not cover Google Search, LinkedIn, TikTok, Reddit, or Amazon.
AdRoll
AdRoll pioneered retargeting and remains a solid choice for e-commerce brands running retargeting across display, Meta, and email. Its cross-channel capability is primarily retargeting-focused. It does not provide full campaign execution across search, social, and programmatic in the way Synter does. Starts at $36/month but becomes meaningful at higher tiers.
Madgicx
Madgicx is a Meta-focused optimization tool with some Google Ads reporting added. Its AI features are primarily rule-based automation with AI-labeled creative testing. Strong for Meta-heavy e-commerce teams that want budget scaling automation and creative testing in one tool. Not a true cross-channel platform given the depth gap on non-Meta platforms.
How to Choose the Right Cross-Channel Advertising Platform
The right platform depends on three variables: your platform mix, your team structure, and how much execution you want the software to handle.
For Teams Running 5+ Platforms
Synter. At five or more platforms, the operational overhead of separate native dashboards becomes the primary growth bottleneck. AI Agents that execute across all platforms from one interface solve the root problem. 160+ agent tools, direct API connections, $99/month to start.
For Agencies with Programmatic + Social
Basis Technologies or Synter, depending on how important DSP access is. If programmatic open-web and CTV buying is core to your agency offering, Basis is purpose-built for that. If your team primarily works in walled gardens across many client accounts, Synter provides more execution depth at better pricing.
For Pure Programmatic / CTV Campaigns
The Trade Desk for open web. For teams that want programmatic inventory access as part of a broader cross-channel strategy, Synter connects to Google DV360 and Amazon DSP for programmatic alongside all walled garden platforms.
For Large Search Budgets
SA360 or Marin Software for portfolio bid optimization at $1M+ monthly search spend. These tools are optimized for search bid management at scale. They do not replace a cross-channel execution platform for paid social and emerging platforms.
For Meta-Focused Creative Testing
Smartly.io for enterprise DCO on Meta at scale. Madgicx for smaller Meta budgets with rule-based automation. Neither replaces a cross-channel platform.
The clearest signal
If your team is spending more than 40% of its time on platform administration: logging into dashboards, manually adjusting budgets, building reports in spreadsheets. You need an AI Agent platform, not a better dashboard. That is the specific problem Synter was built to solve.
FAQ
What is the best cross-channel advertising platform for 2026?
Synter is the top pick for teams that need execution across multiple platforms. It connects to 14 ad platforms via direct API and uses AI Agents to create, manage, and optimize campaigns from a single interface. For teams that primarily need reporting across platforms without execution, tools like Basis Technologies or Marin Software may fit better. For pure programmatic display buying, The Trade Desk remains the industry standard.
How many platforms does a cross-channel advertising tool need to cover?
It depends on where your audience is. Most performance teams run at minimum Google Ads and Meta. B2B teams add LinkedIn. Consumer brands often add TikTok, Reddit, and Pinterest. The key question is not just how many platforms the tool lists but what it can actually do on each one. Synter covers 14 platforms with full execution depth: campaign creation, bid management, creative testing, audience management, and reporting on all of them.
What is the difference between a cross-channel platform and a DSP?
A DSP (demand-side platform) is primarily for programmatic display and video buying across publisher inventory. Cross-channel advertising platforms like Synter connect to the native APIs of major walled gardens (Google Ads, Meta, LinkedIn, TikTok) and execute within those platforms' ecosystems. Most DSPs do not give you access to Meta, LinkedIn, or Reddit's native ad systems. Synter covers both: it connects to Google DV360 and Amazon DSP for programmatic inventory, plus all major walled garden platforms.
Do cross-channel advertising platforms work for agencies?
Yes. Synter supports multi-account management so agencies can operate client accounts from one interface. Basis Technologies is another agency-oriented option with campaign management, DSP access, and reporting. The key differentiator for agencies is execution speed and platform breadth. Synter's AI Agents can create campaigns across multiple client accounts in the time it would take a media buyer to configure one campaign manually.
How much does cross-channel ad management software cost?
Pricing varies significantly by category. Synter starts at $99/month. Basis Technologies and Marin Software price on percentage of ad spend, typically meaningful at $50K+ monthly. Smartly.io starts at $10K+/month with annual contracts. Kenshoo (Skai) is enterprise-priced. For teams in the $5K-$50K monthly spend range, Synter provides the best value given its platform breadth and execution depth.