Campaign Monitor vs Sender 2026
Short answer: pick Sender if you have under 2,500 contacts or run an e-commerce store, pick Campaign Monitor if you are an agency managing multiple client brands and design quality is non-negotiable. Sender scores 4.0/5 overall versus Campaign Monitor's 3.6/5, and the gap widens fast once you run the pricing math.
The context nobody mentions: in November 2025, Zeta Global completed a $325M acquisition of Marigold's enterprise software. Campaign Monitor was explicitly excluded and stayed with Marigold's SMB division. That is actually good news for CM users, the platform is refocused on small and mid-size brands. But at 10,000 contacts, Sender at ~$40/mo versus Campaign Monitor Essentials at $182/mo is a $142/mo gap that requires a serious reason to justify.
Agency-grade design and white-label. No free plan, prices climb fast.
Try Campaign Monitor for free →Read the full Campaign Monitor review →Genuinely free for 2,500 contacts. Wins on price, support, and e-commerce.
Try Sender for free →Read the full Sender review →Who wins for you
Sender's Free Forever plan covers all core features. Campaign Monitor's closest equivalent starts at $31/mo.
Try Sender for free →Campaign Monitor white-label sub-accounts and multi-brand management are best-in-class. Sender has no equivalent.
Try Campaign Monitor for free →Sender includes native abandoned-cart automation on all plans including free. Campaign Monitor lacks native behavioural triggers.
Try Sender for free →Campaign Monitor's template library and drag-and-drop builder consistently rated superior for agency-grade visual output.
Try Campaign Monitor for free →Campaign Monitor vs Sender at a glance
Every cell is grounded in official pricing pages and the two review pages as of June 2026. Read the free-plan row first: it explains most of the value gap.
| Campaign Monitor | Sender | Edge | |
|---|---|---|---|
| Free planThe single biggest difference between these tools | No permanent free plan. 30-day trial (500 contacts, 500 sends) + sandbox to 5 subscribers only | Free Forever: 2,500 subscribers, 15,000 emails/mo, automation and landing pages included | Sender |
| Entry paid price | $13/mo (Lite, 500 contacts, ~2,500 sends/mo cap) | ~$7/mo (Standard, annual billing, 500-contact floor) | Sender |
| 10,000 contacts cost$142/mo gap equals ~$1,700/year saved with Sender | $182/mo (Essentials, unlimited sends) | ~$40/mo (Standard, 120,000 sends/mo) | Sender |
| SMS marketing | Add-on module only, extra cost | Native on Standard+; free SMS credits on Professional | Sender |
| Landing pages | $10/mo extra on Lite and Essentials (Website Builder add-on) | Included on all plans including Free | Sender |
| Email template libraryCampaign Monitor wins on quality, Sender wins on quantity | 100+ professionally designed, agency-grade polish | 1,600+ responsive templates | — |
| Automation depthBoth tools are shallow on automation compared with ActiveCampaign | Journey Designer: trigger-based sequences, no branching, no lead scoring | Visual builder: welcome and cart flows; no branching or tagging either | — |
| White-label sub-accounts | Yes, multi-brand management for 40 to 50 client accounts | No white-label option | Campaign Monitor |
| Live chat support | No live chat on any plan. Email-only Mon-Fri; phone on Premier only ($171/mo+) | 24/7 live chat on all plans including free; median response under 1 minute | Sender |
| Native integrations | 100+ including HubSpot, Salesforce, Zapier (9,000+ apps) | 6+ named natively (Shopify, WooCommerce, WordPress); Zapier for CRM | Campaign Monitor |
| Corporate stability | Retained by Marigold after Zeta Global acquired enterprise tier (Nov 2025, $325M). SMB-focused. | Independent, Lithuania-based (Sender.net) | — |
| Ideal user | Agencies, design-first brands, CRM-heavy stacks | SMBs, e-commerce stores, price-sensitive teams | — |
Prices checked June 2026. CM prices via sendx.io/blog/campaign-monitor-pricing (Apr 9, 2026). Sender prices via smtpedia.com/sender-net-pricing (May 3, 2026).
Criterion by criterion, head to head
The same five criteria scored on each tool's review page. Equal scores still get a clear directional pick.
01 Round 1: getting the first campaign live.
A genuine draw at 4.3 each. Both tools get a first campaign running inside an hour with no technical knowledge. Campaign Monitor's drag-and-drop builder has a cleaner visual canvas and the Journey Designer is laid out clearly. Sender walks absolute beginners through a step-by-step onboarding that feels more hand-holding, which works well for users who have never touched an email platform.
The differences show up at the edges. Campaign Monitor's template customisation draws recurring Capterra complaints for clunky advanced editing when teams try to go beyond basic layouts. Sender's builder is less flexible but also less frustrating for non-designers. Sender has one landmine for new users: the free plan blocks a second account on the same domain, a G2 reviewer hit this without warning and had the account restricted. Campaign Monitor's reporting feels thin once teams scale beyond basic newsletters, and Sender's analytics are also basic. Net: they tie on ease, with different strengths.
Choose Campaign Monitor if your team values design control and a cleaner visual canvas.
Choose Sender if you want zero-to-first-campaign speed and the most forgiving onboarding.
02 Round 2: where the bill actually lands.
Sender takes this decisively at 4.5 to Campaign Monitor's 2.6, and the arithmetic is plain. Sender's Free Forever plan (2,500 contacts, 15,000 emails/mo, automation, landing pages) covers what Campaign Monitor charges $31 to $171/mo for at the same list size. At 10,000 contacts, Sender Standard at ~$40/mo versus Campaign Monitor Essentials at $182/mo is a $142/mo gap, or roughly $1,700/year, with SMS already included in Sender and charged as an add-on by Campaign Monitor.
Campaign Monitor's 2025 plan rebrand made the gap worse. Essentials at 500 contacts ($31/mo) is more than double the old entry price. Premier at $171/mo for 500 contacts is one of the highest entry prices in the email marketing market for such a small list. The 10% annual discount and 15% nonprofit discount help at the margins but do not close the structural gap. Sender's honest catch is its pricing model: the 12x/24x email multipliers are non-intuitive and buyers struggle to predict the bill before configuring a plan. Budget around your real contact count, not the headline floor.
Choose Campaign Monitor for agencies who recoup the cost through white-label markup billing on client accounts.
Choose Sender for almost every other budget scenario. The value gap is structural, not marginal.
03 Round 3: raw features and what you actually get.
Campaign Monitor edges this 3.8 to 3.4, primarily on integration depth and agency tooling. The 100+ integrations include native CRM connectors to HubSpot, Salesforce, Zoho CRM, and Dynamics 365, plus Zapier for 9,000+ apps. The AI Email Booster (subject line AI), Segment Mapper, send-time optimisation on Premier, and multi-brand white-label are all features with no equivalent in Sender.
Sender has been catching up. Native transactional email landed in December 2025. E-commerce sales reports arrived on Standard plans in March 2026. SMS stays native across paid plans, while Campaign Monitor treats it as an add-on. Both tools are shallow on automation depth: no branching logic, no lead scoring, no behavioural web triggers. Sender's Capterra feature count (42/45) is actually higher than Campaign Monitor's (37/45), but Campaign Monitor's features are deeper where they exist. The agency white-label is the primary reason Campaign Monitor wins this round.
Choose Campaign Monitor for CRM-heavy stacks, agency white-label, or advanced segmentation.
Choose Sender for email and SMS bundled at a fraction of the cost, with e-commerce automations included.
04 Round 4: who answers when something breaks.
Sender wins this clearly at 4.6 to 3.2, and the gap is structural. Sender offers 24/7 live chat on all plans including free, with a median response time under one minute confirmed by multiple independent reviewers naming specific agents: Michael, Nathan, Skylar, Malissa. One user got a new IP address provisioned within five minutes. Campaign Monitor has no live chat on any plan: email-only Monday to Friday on Lite and Essentials, phone only on Premier ($171/mo minimum).
Capterra rates Sender's support at 4.9/5 across 211 reviews (March 2026) versus Campaign Monitor at 4.5/5 across 506 reviews. The qualitative gap is as real as the quantitative. A 10-year Campaign Monitor customer had their account permanently deleted for inactivity with no email warning and received no meaningful support response (Trustpilot, May 2026). Both platforms harden on policy disputes: Campaign Monitor has an inactivity-deletion risk; Sender will suspend accounts that send to non-opt-in lists. On the day-to-day experience when something breaks, Sender is not close.
Choose Campaign Monitor if email-based support during business hours is enough for your team's workflow.
Choose Sender if fast human support is a hard requirement, especially on a free or entry plan.
05 Round 5: connecting to the rest of your stack.
Campaign Monitor wins this 3.9 to 3.2 on breadth. The 100+ integrations include native CRM connectors to HubSpot, Salesforce, Zoho CRM, and Dynamics 365, plus Zapier (9,000+ apps), Make, and Integrately for workflow automation. Sender connects natively to Shopify, WooCommerce, PrestaShop, WordPress, and Jumpseller, strong for e-commerce, but Salesforce and HubSpot require Zapier routing.
Two honest catches on Campaign Monitor's side. The Salesforce connector has documented reliability complaints across multiple Capterra reviewers: the native connector exists but is not always stable. And the Shopify connection stops at contact sync and campaign triggers; there are no native behavioural triggers for cart or browse abandonment. Sender's REST API (api.sender.net/v2/, Bearer-token, HTTPS-only) is clean and well-documented, and webhooks unlock on Standard. The integration advantage for Campaign Monitor is real but comes with real asterisks.
Choose Campaign Monitor for CRM-centric stacks requiring HubSpot, Salesforce, or Dynamics 365 natively.
Choose Sender for e-commerce-first stacks on Shopify or WooCommerce, with a solid API for custom work.
The real cost, plan by plan
Two very different pricing models. Campaign Monitor bills by contact count with fixed monthly caps per plan. Sender uses a 12x/24x email multiplier that confuses buyers at first. We list the plans, then run the cost examples the data supports, assumptions stated.
| Campaign Monitor | Sender | Edge | |
|---|---|---|---|
| Free tierCampaign Monitor's sandbox is useful for developers only, not real senders | No permanent free plan. 30-day trial, sandbox to 5 subscribers | Free Forever: 2,500 subscribers, 15,000 emails/mo, automation included | Sender |
| 500 contacts, entry paid | Lite $13/mo: ~2,500 sends/mo cap. Essentials $31/mo: unlimited sends | Standard ~$7/mo: unlimited sends, branding removed, A/B testing | Sender |
| 2,500 contactsCM annual at Essentials: $74 x 0.90 x 12 = ~$799/year | Essentials $74/mo; Premier $182/mo | Standard ~$7 to $19/mo (dynamic pricing, verify on sender.net/pricing) | Sender |
| 5,000 contacts | Essentials $117/mo; Premier $203/mo | Standard ~$19/mo (direction confirmed; exact figure verify on sender.net/pricing) | Sender |
| 10,000 contacts$142/mo delta = $1,704/year. Sender includes SMS; Campaign Monitor charges it as add-on. | Essentials $182/mo; Premier $300/mo | Standard ~$40/mo (120,000 sends/mo included) | Sender |
| Agency on Premier, 2,500 contactsPremier adds phone support, send-time optimisation, engagement segmentation | Premier $182/mo; annual: $182 x 0.90 x 12 = $1,965/year | No white-label equivalent in Sender | Campaign Monitor |
| Nonprofit discount | 15% off any plan + 10% annual = up to ~23% off | No specific nonprofit discount listed | Campaign Monitor |
| Landing pages | $10/mo extra on Lite and Essentials | Included free on all plans | Sender |
Campaign Monitor prices: sendx.io/blog/campaign-monitor-pricing (Apr 9, 2026). Sender prices: smtpedia.com/sender-net-pricing (May 3, 2026). Sender Standard exact price at 5,000 contacts is directionally confirmed but not verified on official pricing page at time of writing.
Pick by scenario
Choose Campaign Monitor if…
- You run a marketing agency managing 10 to 50 client brands and need white-label sub-accounts with markup billing capability
- Visual design quality is non-negotiable and your team judges email output by polished, agency-grade aesthetics
- Your stack is CRM-heavy and requires reliable native connectors to Salesforce, HubSpot, or Dynamics 365
- You are a nonprofit with a consistent newsletter program and can apply the 15% discount to make Essentials pricing defensible
- You need send-time optimisation and advanced engagement-based segmentation at scale (Premier features with no Sender equivalent)
Choose Sender if…
- You have fewer than 2,500 contacts and want a fully functional email, automation, and landing page stack at $0
- You run an e-commerce store on Shopify or WooCommerce and need native abandoned-cart automation without paying for a premium plan
- You need email and SMS in a single platform without a separate SMS add-on module
- Fast human support is a hard requirement: 24/7 live chat on free versus email-only Mon-Fri on Campaign Monitor is a decisive gap when something breaks
- You are price-sensitive at any list size: at 10,000 contacts, Sender Standard (~$40/mo) versus Campaign Monitor Essentials ($182/mo) is a $142/mo, or ~$1,700/year, difference
Frequently asked questions
Is Campaign Monitor free to use?
No. Campaign Monitor has no permanent free plan. There is a 30-day trial covering 500 contacts and 500 sends with no credit card required, and a sandbox mode for sending to up to 5 subscribers indefinitely. After the trial, paid plans start at $13/mo for Lite (500 contacts) or $31/mo for Essentials. Sender, Brevo, and MailerLite all offer permanent free tiers. Sender's is the most generous at 2,500 contacts and 15,000 emails per month with automation included.Is Sender really free and what are the real limits?
Yes, genuinely. Sender's Free Forever plan gives 2,500 subscribers and 15,000 emails per month with no expiry, including automation, landing pages, signup forms, and transactional email. The catches: Sender branding on emails, no SMS, no A/B testing, no webhooks, and only one account per domain. You upgrade once you cross 2,500 contacts or need SMS and branding removal.Campaign Monitor vs Sender vs Mailchimp: which is cheapest at 5,000 contacts?
At 5,000 contacts for unlimited sends: Campaign Monitor Essentials is $117/mo; Mailchimp Standard is approximately $75/mo; Sender Standard is ~$19/mo (verify exact figure on sender.net/pricing). Sender wins on price by a wide margin. Mailchimp wins on native integrations (300+). Campaign Monitor wins on design quality and agency white-label. The right pick depends on whether you are optimising for cost, integration breadth, or visual output.Can I migrate from Campaign Monitor to Sender?
Yes. Sender supports CSV import for contact lists, and the support team assists with migration via live chat. You will lose Campaign Monitor's Journey Designer automations (rebuild from scratch in Sender's visual builder), white-label sub-accounts (no equivalent in Sender), and custom template designs. Export your subscriber list as CSV from Campaign Monitor, verify opt-in status before import since Sender enforces strict permission policy, then test a small send first to warm up your domain on the new platform.Is Campaign Monitor good for nonprofits?
Better than most at Essentials tier with the 15% nonprofit discount applied. Essentials at 500 contacts drops from $31 to ~$26/mo, at 2,500 contacts from $74 to ~$63/mo. The Journey Designer handles donor welcome sequences and event-based campaigns well. Lite's send cap bites a nonprofit running regular newsletters to a full list; budget for Essentials. Sender's Free Forever plan at 2,500 contacts is still cheaper for most small nonprofits, though it lacks Campaign Monitor's refined template quality and white-label control.Does Sender work for B2B outreach or cold email?
No, and this is the most important warning. Sender enforces a strict permission-based anti-spam policy. Sending to purchased, scraped, or publicly sourced lists leads to account suspension without prior warning. One Capterra reviewer had their account suspended for exactly this reason in 2025, with a dismissive support response. Sender is built for opt-in marketing lists, not cold outreach. For B2B cold email, use a dedicated tool with its own warm-up infrastructure.What happened to Campaign Monitor after the Marigold and Zeta Global deal?
In September 2025, Zeta Global announced the acquisition of Marigold's enterprise business (Sailthru, Cheetah Digital, Selligent) for up to $325 million. Campaign Monitor was explicitly excluded and remains with Marigold's SMB division. The deal completed November 24, 2025. No ownership change, no product discontinuation for Campaign Monitor users. The separation refocuses Marigold on SMB email, which is Campaign Monitor's core market.Sender vs Campaign Monitor: which is better for e-commerce?
Sender for most e-commerce scenarios. Sender includes native Shopify and WooCommerce integration with abandoned-cart automation on all plans including free. Campaign Monitor connects to Shopify and WooCommerce but lacks native cart-abandonment and browse-abandonment triggers. Sender also bundles SMS into paid plans for cart-recovery text messages. For behavioural e-commerce automation beyond linear flows, Klaviyo is the right tool regardless of price.How does Campaign Monitor support compare to Sender support?
Campaign Monitor offers email-only support on Lite and Essentials (Mon-Fri business hours), phone on Premier only. A documented case from May 2026 shows zero satisfactory resolution after account deletion for inactivity. Sender offers 24/7 live chat on all plans including free, with Capterra rating support at 4.9/5 across 211 reviews (March 2026). Independent reviewers describe chat responses under one minute with named agents resolving issues to completion.What are the best alternatives to both Campaign Monitor and Sender?
For free-plan seekers: Brevo (unlimited contacts, 300 emails/day) or MailerLite (500 contacts free). For advanced automation: ActiveCampaign (branching, CRM, lead scoring) or Klaviyo (e-commerce behavioural triggers). For agency white-label: Campaign Monitor remains among the best; Emma (also Marigold-owned) is a close alternative. For price versus features: Mailchimp sits between Sender and Campaign Monitor on both axes at mid-list sizes. For SMS-native at higher volume: Brevo and Klaviyo both include SMS.
Test both, then decide
Sender is free to start with no card required. Campaign Monitor offers a 30-day trial. The fastest way to know is to build one real campaign on each.
Best for agencies, design-first teams, and CRM-heavy stacks. White-label sub-accounts with no equivalent in the market. 30-day free trial.
Try Campaign Monitor for free →Read the full Campaign Monitor review →Best for SMBs, e-commerce, and budget-first teams. Free plan for up to 2,500 contacts with automation and landing pages. No card required.
Try Sender for free →Read the full Sender review →Affiliate links: if you sign up through them, you support our independent hands-on tests at no extra cost to you. We score both tools the same way and disclose the weak spots on each side.
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