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It's a split decision.
Choose ClickSend for SMS-first sending, API access and usage-based pricing; its listed rates start at $0.0287 per SMS, with a $20 minimum top-up. Choose Constant Contact if you need email, SMS, social and event marketing in one platform: Lite starts at $10.20 per month when paid annually ($12 monthly). These prices are not directly comparable: ClickSend charges per message, while Constant Contact charges a subscription. Neither lists a free plan; ClickSend lists a free trial, but its duration is unpublished.
01Side by side
| ClickSend | Constant Contact | |
|---|---|---|
| Starting price | $0.0287 per SMS; $20 minimum top-up | $10.20/month annual billing; $12 monthly |
| Free plan | No free plan; trial duration unpublished | No free plan listed |
| Best for | SMS volume, messaging automation and API needs | Email, SMS, social and event marketing |
| Core strength | SMS, MMS, RCS and messaging-app communications | Email campaigns and multichannel marketing tools |
| Learning curve | Not published on the vendor's site | Not published on the vendor's site |
| Integrations/data | APIs and business-app marketplace | Contact segments, tags, forms and landing pages |
| Team/seat costs | Unlimited users; no extra seat charges | 2 Lite seats; 3 Standard; unlimited Premium |
| Support | Review score: 4 | Review score: 4 |
ClickSend Choose ClickSend if
- Choose ClickSend if SMS volume and API access matter most.
- Choose ClickSend if you want per-message rates, not monthly subscriptions.
- Choose ClickSend if unlimited users without seat charges matters.
Constant Contact Choose Constant Contact if
- Choose Constant Contact if email and SMS belong in one platform.
- Choose Constant Contact if you need social and event marketing tools.
- Choose Constant Contact if you prefer subscription plans with listed monthly prices.
02Pricing compared
ClickSend charges per message, not by monthly subscription. Its listed SMS rates run from $0.0287 per message on Boost, with a $20 minimum top-up, to $0.0094 on Enterprise, with a $2,000 minimum. Carrier fees also apply, but their amounts are not listed. Outbound MMS is $0.0373 each. ClickSend lists a free trial, but not its duration.
Constant Contact is a subscription: Lite is $12 monthly or $10.20 per month with annual prepayment; Standard is $35 monthly or $29.75 annually; Premium is $80 monthly or $68 annually. Lite and Standard SMS starts at $10 per month for 1–500 messages. Neither product lists a free plan. These prices are not like-for-like: ClickSend charges per message, while Constant Contact charges a subscription.
03Features and depth
ClickSend is the more focused option for business messaging. It supports SMS through a dashboard or API, MMS with images and sound, and rich messaging through RCS and messaging apps. Its homepage lists MMS messages up to 1,600 characters. The product materials also list campaign tracking, APIs for SMS and MMS with code examples in seven languages, and integrations through its marketplace.
Constant Contact covers more marketing channels in one platform: email, SMS, social media, and events, alongside contact management, automation, and reporting. Its listed email tools include AI-assisted copy, subject-line testing, and scheduling. Automation includes welcome, birthday, re-engagement, and abandoned-cart messages. It also lists social post scheduling, lead-generation ads, contact segmentation, landing pages, and event registration tools. That broader scope does not make it a direct substitute for ClickSend’s messaging APIs: the published materials describe different primary jobs.
04Ease of use and learning curve
The materials describe ClickSend as usable through a dashboard or API, so teams can choose a visual workflow or build messaging into their systems. Its API documentation includes code examples for seven languages; the sources do not publish setup time or a learning-curve estimate.
Constant Contact groups email, SMS, social, and event tools in one platform, but the published materials do not specify onboarding time or editor complexity. The review scores provided rate ease of use at 6 for ClickSend and 4.5 for Constant Contact. Those scores are a caution signal, not a published explanation of which tasks users found difficult.
Questions people ask
Is Mailchimp or Constant Contact cheaper?
We can’t make a price comparison from the published information because it does not include Mailchimp pricing. Constant Contact lists Lite at $12 per month, or $10.20 per month with annual prepayment. Compare the plans’ contact limits, features, and billing terms before deciding.
What kind of software is Constant Contact?
Constant Contact is a cloud-based marketing platform covering email, SMS, social media, and events. Its listed tools also include contact management, automation, and reporting. The pricing materials show three subscription plans—Lite, Standard, and Premium—plus custom pricing for teams managing five or more accounts.
Does Constant Contact remove duplicate contacts?
The published product information does not say whether Constant Contact automatically removes duplicate contacts, so we can’t confirm that feature. If deduplication matters to a migration, check Constant Contact’s current documentation or ask its support team how duplicates are detected and handled.
Can ClickSend replace Constant Contact?
Not as a like-for-like replacement based on the published feature lists. ClickSend focuses on SMS, MMS, rich messaging, APIs, and integrations. Constant Contact also lists email, social media, event marketing, contact management, and automation. Choose based on which channels and workflows you need to keep.