Choose email newsletter software by matching its pricing meter and workflow to the way you actually send. A long feature list or low advertised price is not enough. For example, 2,000 subscribers receiving four monthly broadcasts require about 8,000 broadcast recipient sends before automated messages are added.
Start with the main job: scheduled broadcasts, event-triggered sequences, CRM-based targeting, or creator monetization. This guide compares selected products using official documentation checked October 12, 2026. Pricing, limits, currency, and feature access can change, so verify the current details for your region and account before buying.
The figures below are planning inputs, not a universal ranking. Use them to build a shortlist, then test the specific workflow your team must operate.
How to choose email newsletter software
Choose broadcast-focused software when the main job is composing and scheduling recurring newsletters. If a message must respond to a signup, purchase, form submission, or other event, verify that the selected plan includes the required automation path. If targeting depends on customer records, evaluate the CRM and data-sync fit. If you sell paid subscriptions or digital products, include creator-oriented features in the selection criteria.
Before comparing vendors, write down five things: the message trigger, the system that owns subscriber consent, the required audience fields, the reporting grain, and the people or systems that must approve or publish a message. A newsletter editor does not prove that a product supports a multi-step, event-triggered journey.
HubSpot describes free and paid email marketing capabilities, including CRM-based personalization, but its product overview is not a detailed plan-limit matrix. Confirm which capabilities are included in the account you would purchase. If customer records drive segmentation, consider how your CRM systems should remain the source of truth. For teams evaluating HubSpot in that context, HubSpot systems consulting can help clarify operating requirements. That is not a claim about a particular integration or outcome.
Compare the pricing meter before comparing headline prices
A contact or subscriber limit measures audience capacity. A monthly send allowance measures recipient email volume over a month. A daily cap restricts the number of emails that can be sent in a day. Some providers combine these measures, and terms such as contact, active subscriber, confirmed subscriber, marketable contact, and stored contact are not interchangeable.
| Product | Official Free-plan allowance | Primary meter | Selection implication |
|---|---|---|---|
| Mailchimp | 250 contacts, 500 monthly sends, and 250 daily sends | Contacts plus monthly and daily sends | Compare all three limits with the audience and schedule. |
| Brevo | 300 daily sends, up to 100,000 stored contacts, and automation for up to 2,000 contacts | Daily sends, stored contacts, and separate automation capacity | Do not treat contact storage as sending or automation capacity. |
| Sender | Up to 2,500 subscribers and 15,000 emails per month | Subscribers and monthly emails | Check branding and feature differences alongside the allowance. |
| MailerLite | Up to 250 active subscribers and 2,500 monthly emails | Active subscribers and monthly emails | Test both normal and peak audience volumes. |
| Kit | Up to 10,000 email subscribers | Subscriber count | Check feature eligibility separately from the subscriber cap. |
| HubSpot | Free and paid email capabilities are advertised; the overview is not a limit matrix | Verify account-specific plan limits | Confirm every required advanced feature on the intended plan. |
These figures come from official vendor pages: Mailchimp pricing, Brevo plan documentation, Sender Free-plan details, MailerLite’s Free-plan update, Kit’s Free-plan documentation, and HubSpot’s email marketing overview. Brevo documents its automation limit separately from stored contacts.
Choose against both audience size and recipient-send volume. A large contact allowance does not guarantee enough sending capacity.
Older comparison pages contain materially different figures. Current official documentation lists Mailchimp Free at 250 contacts and 500 monthly sends, MailerLite Free at 250 active subscribers and 2,500 monthly emails, and Kit Free at up to 10,000 email subscribers. Do not carry older Mailchimp, MailerLite, or ConvertKit figures into a purchase decision.
Moosend advertises a 30-day trial and separate tiered options. The exact price depends on selections such as audience volume, billing term, product tier, and add-ons, so verify the intended configuration on its official pricing page. Trial access should not be treated as proof that the same features or limits apply after the trial.
Calculate cost using your actual newsletter schedule
Estimate recipients reached, not just campaigns created. In this hypothetical example, 2,000 subscribers receiving four monthly broadcasts require approximately 8,000 broadcast recipient sends. Add 1,500 automation sends and the estimate becomes 9,500 sends for the month.
active_subscribers = 2000
broadcasts_per_month = 4
automation_sends_per_month = 1500
broadcast_recipient_sends = active_subscribers * broadcasts_per_month
projected_monthly_sends = broadcast_recipient_sends + automation_sends_per_month
# broadcast_recipient_sends = 8000
# projected_monthly_sends = 9500Use the arithmetic as a planning estimate, then confirm the vendor’s counting rule. MailerLite explains that a send counts once for each subscriber who receives an email. One campaign delivered to 2,000 recipients therefore represents 2,000 recipient emails for that meter. Other vendors may define allowances differently.
Test the audience cap, monthly send cap, and daily cap independently. In this example, Brevo’s 300 daily sends would not cover a single 2,000-recipient broadcast sent on one day, even though its Free plan stores up to 100,000 contacts. The stored-contact figure does not remove the daily sending constraint.
Mailchimp says sending may be paused if contact or send limits are exceeded, so capacity planning should include the consequence, not just the nominal allowance. Kit primarily bills by active or confirmed subscriber count rather than email volume, making its pricing meter different from send-volume plans. See Kit’s billing documentation.
Match the platform to the work your team needs to do
Compare products by operating fit rather than declaring an overall winner. HubSpot is relevant when email targeting needs to use CRM records, but its product page combines free and paid capabilities. Brevo has a daily-send-limited Free plan with separate stored-contact and automation limits. Sender states a larger Free subscriber and monthly-email allowance than the other Free plans in this comparison. MailerLite’s current Free plan is smaller. These are documented differences in limits and capabilities, not proof that one service will perform better for a particular audience.
Kit is relevant when creator monetization is central. Its Free-plan documentation lists subscriber-oriented features, and Kit documents a paid-newsletter setup. Visual automations and some sequence features require checking the selected plan. Moosend is worth evaluating if its trial and selectable tiers suit the procurement process. Mailchimp documents a marketing platform and API, but access and operations remain subject to account and plan conditions.
Use this decision rule: recurring scheduled messages point toward broadcast-first software; event-triggered messages require verified automation; customer-record targeting calls for CRM-connected segmentation; and paid audience products make creator monetization a selection criterion. Before shortlisting, record the trigger, audience source, required message path, reporting grain, and system that owns consent.
Reject a Free plan when it fails a required workflow, daily sending pattern, automation path, branding requirement, or reporting need, even if its headline price is zero. Capacity and workflow fit are both eligibility tests.
Check API and reporting fit before committing
If a newsletter platform must exchange data with another system, inspect its actual API and permission documentation. Mailchimp is a documented example, not a proxy for other providers. Its Marketing API covers audiences, contacts, campaigns, reports, events, webhooks, OAuth, and batch operations, subject to account and plan conditions.
Proposed contact-sync architecture
The following is an illustrative application design built around documented Mailchimp contact operations. It is not a Mailchimp payload or a vendor-published integration template.
- Trigger: receive a consent-verified signup or an approved historical migration record in the application.
- Input: retain the destination audience ID, email address, consent evidence ID, required merge fields, source event ID, and intended processing mode.
- Decision: use historical processing for a backfill when automations or webhooks should not fire. Use live processing only when downstream behavior is intended.
- Validation: check email syntax, consent evidence, required fields, API authorization, and the selected processing mode before the write.
- Destination and reconciliation: create or update the selected audience contact, then save the audience ID, source event ID, processing mode, provider identifier, response status, and extraction timestamp in the application record.
Use a database-enforced unique key or transactional upsert on the source event identity. A lookup followed by a separate insert is not race-safe when concurrent workers process the same event. The provider’s email hash can identify a contact for many Mailchimp API operations, but it should not be treated as the application’s universal identity key across audiences, addresses, and consent histories.
Route missing or conflicting consent, required-field failures, authorization errors, rate limits, and repeated transient failures to the responsible operations owner. A successful contact write confirms the write, not that a newsletter was sent. See Mailchimp’s contact endpoint reference and audience documentation.
Proposed reporting extraction architecture
Mailchimp’s campaign-list endpoint supports filters and pagination. Account exports are asynchronous and can include campaign and reporting data, so an export is not an immediate real-time report. Preserve the source campaign ID, account scope, requested period, extraction time, source endpoint or export identifier, and raw response or export provenance.
- Campaign record: one row per platform and campaign ID, containing campaign-level status and aggregate results.
- Recipient or event record: one row per campaign-recipient or individual event only when the source provides that grain. Include the provider event ID where available.
- Extraction-run record: one row per connector, account, run ID, and extraction timestamp. This identifies repeated runs that occur on the same day.
- Reported summary: one row per defined period, platform, audience, metric, and aggregation version. Do not use an event key for this aggregate grain.
Do not use a campaign aggregate to answer recipient-level questions about clicks or unsubscribes. Confirm pagination is complete and wait for export completion before marking a run successful. If a metric’s grain is unclear, hold the affected report for the data owner rather than silently combining it with another record type. See campaign listing documentation and account export documentation.
Run a short, evidence-based vendor evaluation
Build a comparison record with the product and plan name, audience definition and cap, monthly and daily send limits, billing basis, required features, branding, API or export needs, source URL, verification date, currency, region, and billing term. Mark each claim verified, partially verified, conflicting, outdated, or unverified. Prices and limits may vary by region, account configuration, billing term, taxes, promotions, or interactive plan selection.
Use deterministic arithmetic and explicit plan checks for eligibility. An AI assistant may extract candidate facts, group similar feature language, or flag contradictions. It should not be the final authority on current prices, consent state, API availability, plan feature access, or record identity. A human owner should resolve conflicting, account-specific, or blocked evidence before approval.
- Audience, active-subscriber, monthly-send, and daily-send limits are recorded separately.
- Normal and peak schedules fit the vendor’s documented counting rules.
- Required automation, testing, branding, permissions, and reporting are available on the selected plan.
- API or export access, authentication, pagination, and reporting data grain have been checked if needed.
- Every numerical claim has an official source, retrieval date, currency, and region.
- Contact, campaign, event, run, and aggregate records have distinct grains and uniqueness rules.
- A named procurement or marketing-operations owner will resolve account-specific evidence.
Choose the lowest-friction platform that meets the required workflow and capacity with operating margin. A free plan that cannot support a necessary send schedule, automation path, permission model, or reporting grain is not a fit simply because its starting price is zero.