Email vs WhatsApp for Ecommerce: When to Use Each
Email vs WhatsApp for your online store: per-message cost, consent, reach, content and when each channel works best for orders, abandoned carts and campaigns.
5 min read
What ecommerce email software costs: how contact tiers work, per-email pricing, monthly vs annual billing, worked store examples and hidden costs.
Pidgely teamPublished Updated 9 min readMarkdown version

Short answer: ecommerce email marketing software costs whatever your list size or your sending volume costs under the vendor's pricing model. Small stores often fit a free plan; a growing store pays by contact band (per-contact tools) or by emails sent (per-email tools). On Pidgely, for example, a store sending 99,000 emails a month pays R$ 149 a month (Growth plan, up to 250,000 emails).
What email marketing costs an online store depends less on the price list and more on the pricing model: per contact on your list, per email sent, a flat tier with limits, or bundled into your store platform's app. The same store can pay very different amounts depending on the model, because each one penalizes something different: list size, send frequency or growth. This guide explains each model, runs the numbers for hypothetical stores and lists the costs that tend to hide.
Before comparing tools, work out your store's real monthly volume:
A store with 20,000 contacts, four campaigns a month and 3,000 orders a month, for example:
| Item | Math | Emails/month |
|---|---|---|
| Campaigns | 4 × 20,000 | 80,000 |
| Order emails | 3,000 orders × 4 emails | 12,000 |
| Abandoned cart | 2,000 carts × 2 emails | 4,000 |
| Welcome | 1,000 sign-ups × 3 emails | 3,000 |
| Total | 99,000 |
With that number, compare the models.
Per-contact platforms sell bands of list size, and the price jumps when your list crosses into the next band. The tool charges by the number of contacts on your list, with unlimited sends or a high cap per contact. It is the most common model in traditional email marketing platforms.
How the bands behave matters more than the first price you see:
Pros: predictable, and sending many times a month to the same list costs the same.
Watch out for:
The tool charges by monthly sending volume, with plans by volume tier and a per-thousand rate above the plan. Common for email APIs and sending services.
Pros: you pay for what you use; a big list that receives few emails is not expensive. Order emails and campaigns share one bill.
Watch out for:
A monthly fee with limits on both contacts and sends. Predictable, but what matters is what happens when you hit a limit: sending stops, automatic overage, or a forced upgrade.
Annual billing usually lowers the monthly equivalent in exchange for paying 12 months up front, but it also freezes your plan or contact band for the year. If the list grows past the band, you pay the upgrade on top; if it shrinks or you clean inactive contacts, the prepaid money does not come back. Monthly billing costs more per month on paper and lets you move down a band right after a list cleanup.
To compare, add up 12 months for each option with your expected growth: annual price plus likely upgrades, against the sum of monthly bills. Pidgely plans are billed monthly, by emails sent, so list growth alone does not change the bill.
Shopify, WooCommerce, VTEX and Nuvemshop all have email apps in their marketplaces: some billed separately, some bundled, some charging per volume or a share of revenue. The appeal is ready-made integration with orders and products.
Watch out for: pricing follows the app's and the platform's policy, migrating platforms may or may not take your list along, and deliverability depends on who sends behind the scenes.
The range is set by your own numbers, not by a market average: list size if the vendor charges per contact, monthly emails if it charges per send, plus add-ons such as a dedicated IP. This guide does not quote other vendors' prices because they change often; take the volumes from the table above to each vendor's current pricing page. For reference, Pidgely's paid plans are R$ 39, R$ 149 and R$ 449 a month for 50,000, 250,000 and 1,000,000 emails.
Three stores, same models. The figures are not any tool's prices; the point is to show what each model charges for.
| Store | Contacts | Emails/month | What drives per-contact cost | What drives per-email cost |
|---|---|---|---|---|
| A: starting out | 2,000 | 10,000 | Little: small list | Little: low volume, may fit a free plan |
| B: growing | 20,000 | 99,000 | The 20,000 contacts, sends included | The 99,000 emails |
| C: big list, low frequency | 120,000 | 150,000 | All 120,000 contacts, even sending little | Only the 150,000 emails |
On Pidgely's current plans, store A would use Starter (R$ 39, since 10,000 emails is above the Free quota of 6,000), and stores B and C would both fit Growth (R$ 149, up to 250,000 emails).
Store C is the classic case where per-contact pricing gets expensive: the list grew with sign-ups from old giveaways, but the store sends one segmented campaign a month. Per email sent, it pays only for what actually goes out.
Meanwhile, a store with a small, highly engaged list that sends almost daily may pay less per contact.
Pidgely uses the per-email-sent model:
Order emails (through the API or SMTP) and campaigns to segments share one bill. Current prices are in the pricing section. If you are coming from a marketing platform, see how Pidgely compares with Mailchimp and with Brevo.
Stores on Shopify, WooCommerce, VTEX or Nuvemshop can connect natively and send their order emails automatically, on every plan. See integrations.
Pidgely's Free plan includes 6,000 emails per month (200 per day), 3 domains and 3 templates, with the visual template builder on every plan. Starter is R$ 39 (50,000 emails), Growth R$ 149 (250,000) and Scale R$ 449 (1,000,000, with automations and an optional dedicated IP at R$ 129). Extra emails cost R$ 1.00, 0.80 and 0.50 per 1,000 on Starter, Growth and Scale. SPF, DKIM and DMARC are set up aligned, and every email carries one-click unsubscribe headers.
Per-contact platforms sell bands of list size. The whole bill moves to the next band as soon as your list crosses the limit, even by one contact, and some tools count unsubscribed or inactive contacts. Check how each vendor counts contacts before comparing prices.
Annual prepaid billing usually has a lower monthly equivalent, but it locks you into a contact band or plan for 12 months. Compare the 12-month total, including expected list growth and upgrades, not the monthly sticker price.
It depends on how often you email each contact. Stores with a large list and low frequency usually pay less per email sent; stores with a small list that send many times a month can find per-contact pricing competitive. Run the numbers with your own volumes.
It depends on the tool. Some charge for transactional email separately, others do not send it at all. Always add order emails (confirmation, payment, shipping) to your monthly volume before comparing prices.
Only with high, steady volume. A dedicated IP needs regular volume to keep its reputation; at low volume, a well-managed shared IP usually delivers better. Most providers charge a dedicated IP as a monthly add-on.
Pidgely has a free plan and monthly plans defined by the number of emails sent per month, with extra emails billed per thousand up to a spending cap you set. Current prices are on the pricing section of the site.
Pidgely team
Published
We build Pidgely, the email API that gets you to the inbox. We write about what we learn delivering email, citing the standards and mailbox provider guidelines behind every claim.
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