The short answer: don’t start with feature lists. Answer five questions about your business first — how big your list will be in two years, how often you’ll email, whether you need automation or just newsletters, who will operate it, and what your budget looks like as you grow. The right platform follows from those answers. Get them wrong and you’ll either overpay for power you never use or face a painful migration in eighteen months.
What email software actually is (underneath the marketing)
Strip away the landing pages and every platform is three things:
- A sending infrastructure. Servers, IP reputation, and authentication that determine whether your emails reach the inbox or the spam folder. This is called deliverability, and it’s mostly invisible until it breaks.
- A pricing model. Per-contact, per-email, or flat-rate. This determines your bill in year two more than any feature does. (We mapped this out in detail in our email marketing pricing guide.)
- An automation engine. Ranging from “send a newsletter on Tuesdays” to branching workflows that react to every click, purchase, and abandoned cart.
Everything else — the template gallery, the AI subject-line writer, the analytics dashboard — is interface. Useful, but never the reason to choose or reject a platform. Choose on the three fundamentals, in this order: pricing-model fit first, deliverability second, automation depth third.
The five questions to answer before you compare anything
1. How big will your list be in two years? Not today — in two years. A 300-person list becoming 8,000 changes the math completely under per-contact pricing. Sketch the trajectory honestly; this single answer eliminates half the market.
2. How often will you email? Weekly newsletters to a big list favor per-email pricing (Brevo’s model). Daily automated sequences to a smaller list favor per-contact. Frequency and list size together determine which pricing model wins — neither alone is enough.
3. Newsletters or automation? If you’re sending one broadcast a week, you need 10% of what these platforms sell. If you want welcome series, abandoned-cart recovery, and re-engagement campaigns, automation depth becomes the deciding factor — and the serious automation features usually live one or two pricing tiers above the advertised starter price.
4. Who operates it? A non-technical owner sending newsletters needs simplicity (this is where the “easy” platforms earn their price). A marketer building complex workflows needs power and will curse a dumbed-down interface. Match the tool’s complexity to the operator, not to your aspirations.
5. What’s your budget at 5,000 contacts? Not the starter price — the price when you’re succeeding. Ask every vendor this question directly. The gap between cheapest and priciest at 5,000 contacts is routinely 3–4x, and it’s the number most buyers never check until the bill arrives.
What actually matters, ranked
Pricing-model fit. Covered above and in our pricing guide. The model matters more than the price.
Deliverability. This is the quiet killer. Since February 2024, Gmail and Yahoo (and since 2025, Microsoft) enforce hard sender requirements: authenticated sending (SPF, DKIM, DMARC), one-click unsubscribe, and spam complaint rates under 0.3%. Non-compliant mail gets rejected outright, not just spam-foldered. What this means for your choice: prefer platforms that make domain authentication easy and automatic, publish their deliverability practices, and don’t let you cut corners. Your part of the bargain is list hygiene — never buy lists, confirm subscribers, and prune the unengaged. No platform can deliver mail people don’t want.
Automation depth you’ll actually use. Map the automations you need in the next year — welcome series, post-purchase follow-up, win-back campaigns — and check they’re available on the tier you’d actually buy, not just the top tier. The platform famous for automation may keep its best workflows behind a plan that costs 3x the starter rate.
Ease of use. This is genuinely worth paying for if you’re the operator. A powerful platform you avoid using sends zero emails. But don’t confuse “easy” with “limited” — the right question is whether the learning curve matches your ambition.
Integrations. Your email platform needs to talk to your store, your CRM, or your booking system. Check the specific integration you need exists and is maintained — “integrates with 100+ apps” means nothing if yours is the one that’s broken.
Support quality. You’ll need it exactly once — during setup and migration — and then rarely. Check that humans exist on your tier, not just a chatbot and a knowledge base.
What doesn’t matter (but marketing says it does)
Template counts. “2,000+ templates” is a vanity metric. You’ll use three. What matters is whether the editor lets you build a clean email fast.
AI features. AI subject lines and send-time optimization are nice marginal gains. Nobody ever switched platforms for them, and nobody should choose on them.
Free-plan generosity as the deciding factor. A generous free plan is a great way to start and a terrible way to choose. The free tier is marketing; the paid tiers are the product. Always evaluate the platform you’d be on in year two.
The four classic mistakes
Choosing on the free plan. Covered above. The platform with the best free tier often has the steepest paid curve — that’s the business model.
Overbuying automation. Small businesses routinely pay for enterprise-grade workflow builders, then send a weekly newsletter for two years. Buy for the automations you’ll build this quarter, not the ones in a keynote demo.
Ignoring the year-two bill. The $13/month starter price is set by the marketing team. Your actual bill is set by your list growth. Model it before you commit.
Underestimating switching costs. Contacts export in minutes. Everything else — automations, templates, signup forms, landing pages, historical data — gets rebuilt by hand. Migrations routinely take weeks and break things. This is the strongest argument for choosing carefully once rather than “trying one and switching later.”
Which type fits your situation
No product picks here — just the shape of the right answer for common situations:
- Solo owner, weekly newsletter, list under 2,000: You need simplicity and a gentle pricing curve. Newsletter-focused platforms with generous free tiers. Don’t pay for automation depth.
- Growing business, list heading past 5,000, emailing weekly+: Pricing model is everything. Compare per-email and flat-rate options against per-contact platforms at your projected size before committing.
- Ecommerce or content business needing automation: Welcome series, abandoned carts, segmentation. Verify the automation features live on the tier you’d buy, and check the integration with your store is solid.
- Large list, infrequent sends (monthly digest, announcements): Per-email pricing wins by a mile. Paying per contact for people you email twelve times a year is burning money.
The bottom line
Choosing email software is a pricing-model decision wearing a feature-comparison costume. Answer the five questions, rank what matters, ignore the marketing noise, and model your bill at 5,000 contacts before you fall in love with a free plan. Get this right once and you won’t think about it again for years — which is exactly the point.