There's no such thing as "the cheapest plan" in the abstract: the one that minimizes your spend depends on how you send, not on which one shows the lowest number on the pricing table. Two businesses paying the same amount can end up in very different places — one wasting money, the other optimizing — depending on their sending rhythm.
arrobaMail has three plan types, and choosing well comes down to three questions. First, let's cover what each one is, in one line.
The three types, no runaround
- Monthly. A fixed fee with a send volume that renews every 30-day cycle. Ideal if you send on a regular, predictable schedule. Billed by send volume.
- Prepaid. A one-time payment: you buy a bundle of sends with credits valid for 365 days, no subscription and no minimum commitment. Ideal if you send in bursts.
- Unlimited (by subscriber base). Billed based on the size of your base, with no cap on sends. Ideal if you email a stable base very frequently.
The 3 questions that decide your plan
1. How often do you send? If you send campaigns on a regular basis (a weekly newsletter, monthly promos), Monthly gives you renewed volume and predictable cost. If you send sporadically — a seasonal brand, a one-off event, a business that fires off campaigns every now and then — Prepaid keeps you from paying a subscription during the months you don't use it.
2. How much does your volume swing? If your volume is steady month to month, Monthly fits. If it's irregular (a sharp spike followed by quiet months), Prepaid lets you use credits whenever you need them, with a full year of validity so you never lose them.
3. How big and stable is your base? If you have a large base that you email very frequently, there comes a point where paying per send stops making sense — that's where Unlimited (by subscriber base) kicks in, charging based on base size and removing the send cap entirely. If your base is growing fast or is still small, Monthly or Prepaid usually work out better.
A table to help you decide
| Your situation | Plan that usually fits | Why |
|---|---|---|
| Regular, predictable sending | Monthly | Volume renews every cycle, fixed and plannable cost. |
| Sporadic or seasonal sending | Prepaid | Pay once, no subscription; credits last 365 days. |
| High frequency to a stable base | Unlimited (by base) | No cap on sends; you pay by base size, not per send. |
| Just getting started / testing | Free Plan | Validate the flow before committing to a paid plan. |
Details worth knowing before you choose
- The Monthly cycle runs from the 10th to the 9th. Every 10th of the month your contracted volume refreshes, whether you used it or not. It's not a calendar month — it's a fixed 30-day cycle. If you run short mid-cycle, you can add sends with a top-up.
- Minimum commitment. The Monthly and Unlimited plans carry a minimum commitment of 3 months; Prepaid has no minimum commitment.
- You can switch plans. Upgrade or downgrade whenever you want from your account, so you're never locked into a decision — start with whatever best fits where you are right now.
- Prepaid credits last a year. You have plenty of time to use them without the pressure of a monthly bill.
In short
Answer the three questions — frequency, volume swing, and the size of your base — and the plan practically picks itself: regular and predictable → Monthly; sporadic → Prepaid; high frequency to a stable base → Unlimited by base.
To see it with real numbers in your currency (ARS, USD, or BRL), check the pricing page; and if you're still torn between two options, the "which one fits you" comparison walks you through it in three questions. Want to try before you decide? Create a free account and get started with no card required.