Flat-price RMM vs per-device pricing: the honest math

A flat-price RMM charges the same monthly fee no matter how many PCs you connect, while per-device pricing raises the bill with every new machine you add. For fleets of 20 devices and up that plan to grow, flat-rate RMM pricing ends up cheaper as early as year one or two.

Almost every RMM on the market bills the same way: a fee per device, per month. It sounds fair — pay for what you use — until you run the numbers over two or three years and hit the uncomfortable detail: per-device pricing taxes exactly the thing you want to happen, which is your operation growing.

Every new PC you connect raises the bill. Permanently. You added ten machines this year because business is good? Congratulations — your monitoring tool now costs 30% more, and you got nothing new in return.

This article runs the math without tricks, including the cases where per-device billing actually wins.

How does per-device RMM billing really work?

Typical RMM list pricing runs between $2 and $6 per device per month, depending on the product and which modules you turn on. Then add the fine print almost nobody reads at signing:

• Billing minimums: many vendors charge for at least 50 or 100 devices even if you have 30.
• Modules sold separately: base monitoring at one price, but remote access, screen capture, or advanced reporting as per-device add-ons.
• Ghost devices: the machine you retired in March that kept billing until someone deleted it from the console in August.
• Annual rate hikes: per-device prices tend to creep up at every renewal, and migrating RMMs is painful enough that almost nobody does it.

None of these clauses is scandalous on its own. Together, they turn "it's only $3 per device" into a line item that grows by itself, year after year.

The table: same work, very different invoices

Take realistic market rates ($3 and $5 per device/month) and compare the annual cost against a flat-price model, where the fee doesn't depend on how many machines you connect:

| Fleet size | Per device — $3/mo | Per device — $5/mo | Flat price | |---|---|---|---| | 25 devices | $900/yr | $1,500/yr | Same price | | 50 devices | $1,800/yr | $3,000/yr | Same price | | 100 devices | $3,600/yr | $6,000/yr | Same price | | 200 devices | $7,200/yr | $12,000/yr | Same price | | You grew by 40 devices this year | +$1,440/yr extra | +$2,400/yr extra | +$0 |

The last row is the one that matters. Under per-device billing, growth carries a permanent tax. Under flat pricing, the right-hand column never moves: you connect machine 51, 101, or 201, and the invoice stays the same.

The hidden cost that never shows up in a quote: behavior

There's one effect of per-device billing that no sales deck mentions: it changes your decisions. When every installed agent costs money, you start rationing:

• "That laptop barely gets used — don't add it to monitoring."
• "We'll check the small branch's PCs by hand, they're not worth paying for."
• "Pull the old machines out of the console to lower the bill."

The result is a half-monitored fleet — and incidents have a habit of happening on exactly the machine that got left out "because it's barely used." With flat pricing, the correct decision (monitor everything) and the cheap decision are the same decision. You install the agent on every machine without thinking twice, and the security posture of the entire fleet stays visible — no gaps chosen by budget.

There's a budgeting benefit hiding in the same place. A flat fee is a line item you can write into next year's budget in ten seconds, and it will still be right in December. A per-device fee is a formula — devices times rate times months — where two of the three variables move during the year. Anyone who has had to explain to an owner why the "monitoring" line came in 40% over budget knows exactly what that costs in credibility, and it has nothing to do with the tool itself.

When does per-device pricing actually win?

Honest math cuts both ways. Per-device billing can come out ahead when:

• Your fleet is very small and staying that way. With a stable 5–10 machines, $3/device/month can cost less than any flat fee. If you're not planning to grow, simple arithmetic favors you.
• Your fleet is shrinking. If you're winding down operations, per-device billing lowers the bill as you disconnect machines.
• You need to bill per client. Some IT service providers pass the per-device cost straight through to each end customer, and there the per-device model makes that resale simpler.

If you fit one of those three cases, a well-negotiated per-device deal is defensible. For everyone else — fleets of 20 and up that are growing, or that just want to stop counting devices — flat pricing wins as soon as you project past year one.

Three questions before signing any RMM

1. What will I pay in year 3, not month 1? Project with your fleet's real growth rate and the typical renewal price increase.
2. What happens when I add 20 machines? If the answer includes "requesting a new quote," you already know how it ends.
3. Does the pricing push me to leave devices unmonitored? Any model that rewards keeping machines out of the console is working against your security.

Argos was built around the simple answer to all three: one price that doesn't depend on how many machines you connect. The whole fleet in the console, growth without a tax, and an invoice you can predict from memory.

Frequently asked questions about RMM pricing

Does Argos's flat-rate RMM pricing have a device limit? No. Argos's fee doesn't change whether you connect 20 machines or 200 — it's the same price, with no tiers and no re-quoting when you add machines. That's the opposite of the per-device billing described above, where every new PC is one more line on the invoice. The full breakdown is on the pricing page.

When does per-device pricing actually beat flat pricing? When your fleet is small and stable (5–10 machines with no growth plans) or when you're actively shrinking it. In those two cases, a $3–5 per device monthly rate can cost less than any flat fee. Outside those scenarios — fleets of 20 and up that are growing — flat pricing wins as soon as you project past year one.

What happens if my fleet grows a lot in one year? Under per-device billing, the invoice grows in proportion: adding 40 machines can mean $1,440 to $2,400 extra per year, depending on the rate. Under flat pricing, adding machines doesn't move the cost — you connect machine 51 or machine 201 and pay exactly what you paid before.

What hidden costs typically show up in per-device contracts? Three are the most common: billing minimums (charging for 50–100 devices even if you have fewer), ghost devices that keep billing after being decommissioned, and rate increases at every renewal. None of them show up in the initial quote — they surface when you review the invoice months later.

Want the actual numbers? Check Argos pricing and run it against what you pay today — with your real fleet, over three years, which is where the difference shows.