The short version
Write your real sending pattern from your records, separate what the tool must do from what would be nice, total each tool's cost across a full year including quiet months, check what counts as a contact, count maintenance and exit work, keep the list warm in quiet months, test a realistic burst, and switch only when the saving is real, the features are confirmed and the exit is understood.
Choosing email software for seasonal senders is a different job from choosing it for everyone else. Most comparison advice quietly assumes you send a steady couple of emails a month, all year.
Here's a made-up maker to follow through this guide. Kinsale Kites makes handmade kites in a workshop near the harbour. The business follows the wind and the weather, not the retail calendar:
- November to February: almost nothing sent, except one Christmas gift email
- March to June: the busy season, with a new design each spring, a beach-day guide and weekly emails in May
- July and August: steady, two emails a month
- September and October: one or two emails, then quiet again
The list grows in bursts too: about 800 subscribers in winter, 1,300 by June, mostly from kite festivals and beach events.
A pricing page that shows a monthly figure describes none of those months.
This guide shows you how to choose honestly for a sending pattern that isn't a smooth line.
Why "average monthly sends" is the most misleading number in your comparison
Average Kinsale's year and you get roughly four emails a month to about 1,000 people. That month never happens.
In reality, there are months with no sends to 800 people, and months with five sends to 1,300.
Under some pricing, the quiet months are the expensive part. Under other pricing, the busy months are. An average hides both, and leads you to a plan built for a business that isn't yours.
So throw the average away and describe the real shape.

Write your real sending year from your records, not your memory
Open your email history and write down:
- Which months you send, and how often
- List size at its quietest and its peak
- When and where the list grows
- What happens in quiet months: occasional notes, or nothing
- The burst weeks, and how many emails go out in them
Kinsale's record surprised the owner, Lorcan. He'd remembered "about two a month all year". The actual history showed eight months with one email or none, and four months with nearly all the sending.
Keep this note somewhere you'll find it next year. Seasonal patterns are easy to forget during the quiet months, which is exactly when renewal emails tend to arrive.
Two short lists: what the tool must do, and what would merely be nice
Before looking at prices, write:
What the tool must do for this pattern:
- Send a burst to the full list without delays
- Hold contacts at a known, acceptable cost in quiet months
- Add festival signups quickly, ideally from a tablet at the event
- Handle signups and unsubscribes cleanly
- Send from your own domain
What would be nice, but isn't essential:
- Elaborate automation flows
- Dozens of templates
- Detailed reports nobody reads in winter
- Features built for daily senders
A tool earns a place on the shortlist by doing everything on the first list. The second only breaks ties.
Total each tool's cost across twelve months, because one month tells you nothing
For each tool you're considering, add up a full year:
- The billing basis: monthly, or yearly with a discount
- How the price scales: contacts, emails sent, or both
- The quiet months: what you pay when you send nothing
- The busy months: what the burst costs, and whether it pushes you up a tier
- The next tier: what it costs and how close you are to it
The two common pricing styles behave very differently for a seasonal sender:
- Priced by contacts: the same bill every month, quiet or busy. You pay all year for your June list size.
- Priced by sends: low in quiet months, higher in the burst. If a feature you need sits on a higher tier, the burst may push you there anyway.
Write both annual totals in the same currency. That's the number to compare.
Find out what you pay in a month when you send nothing
This is the seasonal trap. Some tools charge for stored contacts even in months when you never press send. Others let the list sit cheaply and charge for activity.
Kinsale sends almost nothing for four months. On a contact-priced plan, those four months cost the same as May. On a send-priced plan, they cost very little.
Read the pricing page for what happens in a billing period with no sends, and build it into the annual total.
Check exactly what the tool counts as a "contact"
Some tools count every address ever stored. Some count only subscribed contacts. Some count unsubscribed people until you delete them.
That definition can change your quiet-month bill a lot. Find it before comparing totals. If it isn't clear on the pricing page, ask the provider in writing.

Watch for introductory prices that end just as your season starts
Many tools offer a lower price for the first few months or the first year.
For a seasonal sender, timing matters. A discount that starts in November covers Kinsale's quiet months, then ends in spring, just as the busy season begins. The saving lands when it's least useful.
For each tool, note the introductory price, when it ends, the regular price afterwards, and which months of your pattern fall into each. Use the regular price in your annual total.
Count the work as part of the cost
A cheaper subscription can cost more in hours. Ask who handles:
- Importing and cleaning the list
- Adding festival signups after each event
- The connection to your shop, so recent buyers aren't sent "new design" emails for the kite they just bought
- Setting up your sending domain
- Testing before the busy season
- Support when something goes wrong in May
If you put a number on your time, state the assumption: "about two hours a month at my usual rate". Often the honest version is enough: this one saves a little money but adds work, that one costs more but needs almost no attention.
Keep the list warm through the quiet months
Here's a problem that's particular to seasonal senders. If you don't email people for months, some forget they signed up. When your burst arrives, a few mark it as spam, simply because they don't recognise you. That can affect whether later emails reach inboxes at all.
So whatever tool you use, plan a little contact in the quiet season:
- The one Christmas gift email, which Kinsale already sends
- A short "the spring design is nearly ready" note a few weeks before the season, with a reminder of why people joined and an easy way to leave
Then clean the list before the busy season: remove addresses that bounce, and consider a gentle "do you still want kite news?" email to people who haven't opened anything in a long time.
A smaller list of people who expect your emails is worth more than a big list of strangers. On a contact-priced plan, it's also cheaper.
Festival signups need a route that works in a field
Kinsale gets most new subscribers at kite festivals and beach events. That raises a practical requirement many comparisons ignore: how do people sign up at an event, often with poor signal?
Check, for each tool:
- Is there a signup form that works on a tablet with a weak connection, or offline?
- Can signups be tagged by event, so a festival signup gets a suitable welcome?
- If you collect names on paper, how easy is it to import them later, with a record of consent?
If your list grows at markets, fairs or events, put this in the "must do" list. A tool that's perfect online but awkward in a field isn't a good fit.
Test the burst, because a tool can be fine at ten emails and weak at thirty
If a tool makes the shortlist, test it against your real pattern. Send your quiet-season volume, then a burst: several emails to a test list over a few days.
Watch for:
- Delays during the burst
- Emails landing in spam folders
- Sending limits you didn't expect
- A sender name that looks unfamiliar on a phone
Your pattern is the burst. Test the burst.
In the busy season, send the important emails a little earlier than you think
During peak weeks, inboxes are fuller, and your customers are busier too. For a seasonal shop, sending the most important email a few days before the busiest week, rather than in it, gives it a better chance of being read and gives people time to order.
Kinsale used to send the spring design email on the Friday before the first big festival. Now it goes out the Tuesday of the week before, with a short reminder on the Friday for anyone who hasn't opened it.
Check whether your tool makes this easy: scheduling ahead, sending a reminder only to people who didn't open, and pausing a scheduled email if stock arrives late.

Plan the exit before you plan the entrance
Before signing up, find and read:
- How to cancel, and when it takes effect
- How to export contacts with signup sources and consent records
- What happens to your data afterwards
- Which forms and automations would need rebuilding
- What happens if you downgrade later
If a provider doesn't explain one of these, mark it unresolved rather than filling the gap with hope.
Then try writing the exit as a short procedure: "Export the list on this date, update the domain settings, rebuild the forms, import by then." If you can't write it, you don't yet understand the exit.
Free plans can suit seasonal shops, if the busiest week fits
Many tools offer a free plan for small lists. For a seasonal sender, that can be useful in the quiet months.
Before relying on one, check the contact limit, the monthly send limit, whether your own domain is supported, whether the platform's branding appears in your emails, and whether a welcome email is included.
Then run your busiest week through those limits. Kinsale's May includes five sends to 1,300 people. A free plan that covers the winter perfectly but fails in May isn't free. It's a problem waiting for the busiest week of the year.
A worked comparison for Kinsale Kites
Here's how Lorcan compared two tools, with invented figures:
| Tool A (priced by contacts) | Tool B (priced by sends) | |
|---|---|---|
| Quiet months (Nov to Feb) | Same as busy months | Very low |
| Busy months (Mar to Jun) | Same as quiet months | Higher, one tier jump in May |
| Annual total for Kinsale's pattern | Higher | Lower |
| Festival signup on a tablet | Yes, works offline | Online only |
| Shop connection to exclude recent buyers | Yes | Yes |
| Export with consent records | Confirmed | Unclear |
Tool B was cheaper over the year. But it couldn't take festival signups offline, and its export route was unclear.
So Lorcan didn't switch. He stayed with his current tool through the spring season, asked Tool B two questions in writing, and set a reminder to compare again in October, when the quiet months start and moving is safest.

Three possible answers, and the one seasonal senders reach most often
Stay put when the saving is small, the switching risk is unclear, or the current tool simply works. A tool you understand, with tests that pass, has value no pricing page shows.
Switch when all three are true: the annual difference is real and repeatable, the features you need are confirmed by a test, and the exit route is understood.
Defer when you don't yet know your pattern. If you've only had one season, or last year's burst was unusual, run another season with your current tool and keep records. Then compare with facts instead of assumptions.
If you do switch, switch at the start of the quiet season
The worst time to move is just before your busy season. If something breaks, you find out in the middle of your most important sends.
For Kinsale, the right moment is October. A simple order:
- Export the list with signup details
- Set up the new tool and your sending domain
- Rebuild signup forms, including the festival one, and test each
- Rebuild and test the welcome email
- Send the Christmas gift email from the new tool as a low-risk first send
- Only then cancel the old account
Give it weeks, not days. That way, the new tool has been tested on a real send long before March.
Decide what quiet-season signups receive
People sign up in the quiet months too: a Christmas gift buyer, someone who found the site in January. If your welcome email talks about "this weekend's festival" or "the new spring design, out now", it will be wrong for them.
Kinsale's welcome email avoids dates. It delivers the promised flying guide, says the next new design arrives in spring, and mentions the one Christmas email. Seasonal details live in the seasonal emails, not the welcome.
Check your own welcome email by imagining someone signing up in your quietest month. Does every sentence still make sense?

Reuse seasonal templates, but recheck every date, price and design
A seasonal shop often rebuilds the same emails every year: the spring launch, the beach-day guide, the Christmas gift email.
Saving them as templates in your email tool saves time. But last year's details will be wrong this year: the design names, the prices, the festival dates, the delivery cut-offs.
So treat every reused template as a draft. Before scheduling, check each date, price, product name and link against this year's facts. Kinsale once sent a spring email pointing to last year's sold-out design. Now the first line of every template says "CHECK ALL DATES AND LINKS", in capitals, and is deleted before sending.
Keep a one-page comparison sheet you can reuse every year
Keep the pattern note, the annual totals, the contact definitions, the burst test results and the exit notes together, dated.
When renewal comes round, or a rival tool sends a tempting offer in the middle of winter, you update the figures and compare again in under an hour. If nothing has changed, you renew in a minute. If something has, you have the evidence for a calm decision.
Your next step this week
Write your real sending year from your records: which months you send, which you don't, your list size at both ends, and where it grows.
Total one full year on your current tool, across all twelve months.
Only then, if that total bothers you, compare one other tool against exactly the same pattern, including your busiest week and how your new subscribers actually sign up.
Most of the time, the saving will be smaller than the effort of moving. If it genuinely isn't, you'll have the evidence to switch calmly, at the quietest point of your year.
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