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Campaign Monitor vs Constant Contact for Agencies (2026): Which Is Better?
By Red Kite Search Agency Created Updated 8 min read
Summary
Choose Campaign Monitor for a true agency model. Choose Constant Contact for phone support and a familiar brand. Prices and ratings were checked in October 2026.
Campaign Monitor vs Constant Contact: which is better for agencies in 2026?
Campaign Monitor and Constant Contact both serve agencies and small businesses. Campaign Monitor has client sub-accounts and white label. Constant Contact has phone support and a multi-account plan for five or more accounts.
We compared price, agency features and evidence.
| Tool | Editorial score | Review-site ratings | Pricing | Best for |
|---|---|---|---|---|
| Campaign Monitor | 4.4 / 5 | G2 4.1 | At 0 to 500 contacts, annual billing with a 10% discount. Lite $11.70 a month. Essentials $31 monthly, or $22.32 a month with a new-customer promotion until 3 January 2027. Premier $153.90 a month. Enterprise is custom. A free plan and a free trial are offered. | Agencies to enterprise teams |
| Constant Contact | 3.9 / 5 | G2 4.1 | At the smallest contact tier. Lite $12 monthly or $10.20 billed yearly. Standard $35 monthly or $29.75 yearly. Premium $80 monthly or $68 yearly. Enterprise and Multi-Account are custom. A free trial needs no credit card. | Small agencies to multi-location teams |
How do Campaign Monitor and Constant Contact compare on price?
Campaign Monitor costs $11.70 on Lite and $153.90 on Premier a month billed yearly at 0 to 500 contacts. Constant Contact costs $10.20, $29.75 or $68 a month billed yearly.
| Tool | Plan | Price | What stands out |
|---|---|---|---|
| Campaign Monitor | Lite | $11.70 per month at 0 to 500 contacts (annual billing) | 0 to 500 contacts, 5x subscriber emails a month, unlimited users |
| Campaign Monitor | Essentials | $22.32 per month at 0 to 500 contacts (annual billing); $31 monthly | Unlimited sends; annual price includes a new-customer promotion |
| Campaign Monitor | Premier | $153.90 per month at 0 to 500 contacts (annual billing) | Unlimited sends, phone support, advanced segments, send time optimisation |
| Campaign Monitor | Enterprise | Custom | Multi-brand and multi-team management, account manager, SOC 2, invoice billing |
| Constant Contact | Lite | $10.20 per month at the smallest contact tier (annual billing); $12 monthly | 1 user, send limit 10x contacts |
| Constant Contact | Standard | $29.75 per month at the smallest contact tier (annual billing); $35 monthly | 3 users, send limit 12x contacts |
| Constant Contact | Premium | $68 per month at the smallest contact tier (annual billing); $80 monthly | Unlimited users, send limit 24x contacts |
| Constant Contact | Enterprise Multi-Account | Custom | For 5+ accounts, centralised control and approvals |
Which costs less?
Constant Contact Lite and Standard cost less at the smallest tier, but users are limited to one and three. Campaign Monitor lists unlimited users on every plan.
Compare cost per client list and per user.
Run a short side-by-side test before you decide. Give both tools the same real list and campaign, time how long each takes, and ask a colleague who did not set them up to review the result. The result is usually clearer than any feature table.
Also check how each vendor handles renewal. Yearly plans are often billed in advance, price rises are common at renewal, and cancelling late can lock you into another term. Put the renewal date in the team calendar the day you buy.
Which is better for agencies?
Campaign Monitor, because client sub-accounts, private labeling, markup and billing management are listed on every plan. Constant Contact offers Multi-Account as a custom plan for five or more accounts.
Constant Contact adds phone support that many local clients like.
Ask for a written statement of plan limits when you buy, because caps on contacts, sends, and seats change from time to time, and a record of what you were promised is useful if a limit moves.
Remember that you can start small. Most vendors offer a free plan or trial, so begin with the cheapest plan that covers your real work, and upgrade only when a specific limit blocks you.
A useful habit is to record each trial in one short note: the list used, the setup time, and the main frustration. Comparing two notes is far easier than comparing two memories.
Which has stronger evidence?
Both show 4.1 on G2: Campaign Monitor from 732 reviews and Constant Contact from 7,625.
Campaign Monitor Enterprise states GDPR and SOC 2.
Finally, think about exit costs. Check how easily you can export your lists, templates and reports, and keep notes on how your automations are built, so a later switch does not mean starting from scratch.
Keep the client in the loop on billing. Whether the client pays the vendor directly or you resell the tool, agree who owns the account and the data in writing.
How do Campaign Monitor and Constant Contact compare on integrations, security, and support?
Beyond price, agencies ask about connections to their other tools, what to tell clients about security, and how quickly they can get help. This is what each vendor states publicly, as checked in October 2026.
| Area | Campaign Monitor | Constant Contact |
|---|---|---|
| Integrations | 250+ integrations including Salesforce, WordPress and Google Analytics, and unique API keys per sub-account | G2 lists integrations including Adobe InDesign, Bluehost, Canva and CiviCRM |
| Security | Two-factor authentication on all plans; Enterprise states GDPR and SOC 2 with custom DPAs | The vendor mentions GDPR compliance on its data sovereignty page; SOC 2, ISO 27001 and SSO were not stated |
| Support | Priority support on Essentials, phone support on Premier and a dedicated account manager on Enterprise | Customer service by phone (877-358-5969) and a help center |
| Apps | A mobile app was not stated | A mobile app is listed on Google Play |
What are the pros and cons of Campaign Monitor and Constant Contact?
Here is where each tool helps agencies and where it can get in the way, based on plan details and public feedback.
Campaign Monitor pros
- Agency features are listed across plans: tiered accounts, client insights, private labeling, markup options and in-app billing management.
- Lite costs $11.70 a month and Essentials $22.32 billed yearly at 0 to 500 contacts.
- Unlimited users and two-factor authentication on every plan.
- Agencies can bill clients directly or let Campaign Monitor invoice on their behalf.
Campaign Monitor cons
- The Essentials price includes a 20% promotion for new customers that ends on 3 January 2027.
- Prices rise with contact count and the page shows the 0 to 500 tier.
- G2 shows 4.1 from 732 reviews, lower than several rivals.
- A mobile app was not stated.
Constant Contact pros
- Lite costs $12 a month, or $10.20 billed yearly, at the smallest contact tier.
- Premium costs $80 a month, or $68 billed yearly, with unlimited users.
- Enterprise Multi-Account gives centralised control of messaging, templates and approvals for 5+ accounts.
- A free trial with no credit card.
Constant Contact cons
- Lite has 1 user and Standard 3, so team access costs more.
- Send limits are a multiple of contacts: 10x on Lite, 12x on Standard, 24x on Premium.
- G2 shows 4.1, lower than several rivals.
- SOC 2 and SSO were not stated.
What do reviewers say about Campaign Monitor and Constant Contact?
G2 shows Campaign Monitor at 4.1 from 732 reviews and Constant Contact at 4.1 from 7,625 reviews.
| Tool | Source | Rating | Number of reviews |
|---|---|---|---|
| Campaign Monitor | G2 | 4.1 / 5 | 732 |
| Constant Contact | G2 | 4.1 / 5 | 7,625 |
Reviewer themes for Campaign Monitor
- G2 shows Campaign Monitor at 4.1 from 732 reviews.
- An agency reviewer says it has served them for over a decade and values its API and transactional emails.
Reviewer themes for Constant Contact
- G2 shows Constant Contact at 4.1 from 7,625 reviews.
- Reviewers describe excellent email capabilities and easy connection to other platforms.
How does setup differ between Campaign Monitor and Constant Contact?
Getting value from either tool depends on how you set it up, and the first steps differ. Here is the practical starting point for each.
Campaign Monitor: Use the trial with one client sub-account.
Constant Contact: Use the free trial with one client list.
What should agencies check before choosing between Campaign Monitor and Constant Contact?
Small details in plans and limits decide whether a tool works in practice. Check these points for each tool during a trial on a real client account.
Before you buy Campaign Monitor
- Count client accounts.
- Decide who bills the client.
- Check contact tiers.
- Use the trial.
Before you buy Constant Contact
- Count users per client.
- Check contact tiers.
- Ask about Multi-Account.
- Use the free trial.
How should you test Campaign Monitor and Constant Contact before deciding?
The fairest test is to run both tools on the same real client account for two weeks, with the same people, and compare the results rather than first impressions.
What to measure
- How long it takes a new team member to be productive in Campaign Monitor versus Constant Contact.
- How often people open each tool without being reminded.
- Whether the plan you need includes the features you tested, not just the entry price.
- How a client reacts if you invite them to either tool.
- How much time the team spends on notifications, setup, and cleanup each week.
Which should you choose: Campaign Monitor or Constant Contact?
Choose Campaign Monitor for a true agency model. Choose Constant Contact for phone support and a familiar brand.
Trial both on one client.
Choose Campaign Monitor if
- You resell email to clients.
- You want white-label sub-accounts.
- You want markup billing.
Skip Campaign Monitor if
- You run one internal list.
- You want the lowest price per client.
- You need a very high G2 score.
Choose Constant Contact if
- Your clients are small local businesses.
- You want phone support.
- You may need 5+ accounts under one control.
Skip Constant Contact if
- You want a free plan.
- You need many users on a low plan.
- You need stated security certifications.
Frequently asked questions
- Is Campaign Monitor or Constant Contact better?
- Campaign Monitor for agencies, Constant Contact for phone support.
- Which is cheaper?
- Constant Contact at entry.
- Which has client sub-accounts?
- Campaign Monitor.
- Which has unlimited users?
- Campaign Monitor on every plan; Constant Contact on Premium.
- Do both have trials?
- Yes.
Sources
Prices, plan limits, and ratings were gathered in October 2026 from:
- Campaign Monitor pricing page
- Constant Contact pricing page
- G2