Premium Inboxes vs Primeforge (2026): which should you pick?
As of Nov 13, 2026, Premium Inboxes and Primeforge share a 1.6 GPA, neither has a free plan, and Premium Inboxes starts cheaper, at $3.50 a month against $38 a month.
Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA
They get the same grade on all five counts.
Price, platforms and features side by side. The table says where each price was read and when.
Premium Inboxes
Done-for-you Google and Microsoft inboxes for cold email
Which one is for you
Pick Premium Inboxes if
- Fits if you want 30 or more inboxes set up and handed over
- Works for agencies that already have a sequencer
Look elsewhere if
- Tight if you need fewer than 30 inboxes, because both plans have a 30-inbox minimum
- Skip it if you want a trial, as there is none
- Watch out: domains are not in the price, so you buy them yourself
- Pricey if you want an account manager, a Slack channel or 24-hour monitoring, since all three need the $4.50 tier
Pick Primeforge if
- Fits if you send cold email at volume and want Google or Microsoft mailboxes
- Works for teams already using Salesforge or another Forge product
Look elsewhere if
- Skip it if you want to test it first, as nothing is free
- Too light on its own, since you still need a separate tool to send
- Tight if you only need a few mailboxes: the minimum is 10 slots, billed even when empty
- Watch out: each Forge product is its own subscription, and domains get no yearly discount
How we grade them
| 1.6GPAPremium InboxesWeak | 1.6GPAPrimeforgeWeak | |
|---|---|---|
| Value for money | C$3.50 an inbox a month with a 30-inbox minimum, so $105 a month at the floor. $4.50 on the dearer tier. | C$38 a month for 10 mailbox slots on yearly billing ($45 monthly), about $4.50 a slot, plus $14 a year for each .com domain. That is the middle of the category's range before the sender you also need. |
| Free plan and trial | FNo free plan and no trial is listed, so you pay before you try it. | FNo free plan and no trial, because domains and mailboxes have to be bought first. |
| Features | DInbox setup, replacements and a sequencer upload. It needs a sequencer, and the domains are yours to buy. | DMailboxes, domains and DNS only. It sends no emails, finds no leads and needs another product to be useful. |
| Ease of use | CNo store rating on record. You hand over domains and connect a sequencer. | CNo store rating on record. You buy domains, set up mailboxes and connect them to a sending tool. |
| Platforms and integrations | BWeb dashboard, with uploads to Instantly, Smartlead, Apollo, Lemlist, Reply.io and Bison. | BWeb, with an API and links to the other Forge products. The listing names no wider integrations. |
| Best for | done-for-you Google and Microsoft inboxes | buying Google and Microsoft mailboxes for cold email |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Premium Inboxes and Primeforge. How we grade
Price against what you get
Premium Inboxes starts at $3.50 a month and scores 2.0 out of 4 on features, ease of use and platforms. Primeforge starts at $38 a month and scores 2.0.
They score the same, and Premium Inboxes starts $34.50 a month lower. Of the other cold outreach tools on the chart, none scores higher than Premium Inboxes for less, and 19 score higher than Primeforge for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
At a glance
| Premium Inboxes | Primeforge | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | $3.50 per inbox / month | $38 per month for 10 mailbox slots, billed yearly ($45 billed monthly) |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Premium Inboxes | Primeforge |
| Price read from | premiuminboxes.com | primeforge.ai |
| Checked | Nov 13, 2026 | Nov 13, 2026 |
Worth knowing
Premium Inboxes
- You supply the domains; the site does not list domain purchase in the price.
- Both plans start with a minimum order of 30 inboxes.
- It provides mailboxes only; you need a separate sequencer to send campaigns.
- Account manager, Slack channel and 24-hour monitoring come only with the $4.50 tier.
Primeforge
- Primeforge sells infrastructure only: sending needs a separate tool such as Salesforge.
- No free trial is offered, because domains and mailboxes must be bought first.
- Each Forge product is a separate subscription, and domains get no annual discount.
- Slots are billed whether or not mailboxes are created, with a 10-slot minimum.
Key features
Premium Inboxes
- Google Workspace and Microsoft 365
- Inboxes are business accounts on either provider, and the pricing page has a toggle for each.
- Technical setup handled
- The vendor says it configures DNS with SPF, DKIM and DMARC, creates the inboxes, sets up profiles and enables warmup.
- Sequencer upload
- Inboxes are uploaded directly to the sequencer. The site lists Instantly, Smartlead, Apollo, Lemlist, Reply.io and Bison.
- Unlimited replacement inboxes
- Both plans include replacement inboxes when one is lost or flagged, with a priority queue on the higher plan.
- Slack support channel
- The higher plan adds a dedicated Slack channel and account manager, and the site says the founder joins customer channels.
- Infrastructure calculator
- A calculator turns a daily send volume into a number of inboxes, domains and a monthly cost.
Primeforge
- Google and Microsoft mailboxes
- Provides Google Workspace and Microsoft 365 mailboxes, so a sender can match the provider a prospect uses, which the vendor says helps inbox placement.
- Automated DNS setup
- Configures DKIM, DMARC and SPF records automatically. Domains stay under your control and DNS records can still be edited.
- Pre-warmed mailboxes
- The vendor lists pre-warmed mailboxes that can be added to Salesforge or other sending software, with setup in about 30 minutes.
- Pricing calculator
- Estimates the domains and mailboxes needed from emails per sequence, mailboxes per domain and contacts per month.
- Hosting, API and support
- The subscription covers inbox hosting and maintenance, API access and customer support. Two 1-to-1 expert sessions are sold separately for $500.
Plans
Premium Inboxes
Start Up$3.50
per inbox / month, for 1 to 249 inboxes
No monthly commitment, dashboard, full technical setup, upload to your sequencer and unlimited replacement inboxes. Orders start at 30 inboxes.
Insured Infrastructure$4.50
per inbox / month
Adds a dedicated account manager and Slack channel, advanced analytics, priority support and build queue, and 24-hour monitoring.
Primeforge
Mailbox slots$38
per month for 10 mailbox slots, billed yearly ($45 billed monthly)
Minimum purchase is 10 slots, about $4.50 per slot on monthly billing. Slots can be reused when mailboxes are deleted.
Domains$14
per .com domain / year, charged once
Domains are bought through Primeforge for the calculator's example; there is no yearly discount on domains.
Ways to pay less
Premium Inboxes
No public discounts listed.
Primeforge
- Annual discount
Two months free on yearly billing
Yearly billing for mailboxes comes with a discount of two months free, according to the FAQ. Domains are excluded.
Common questions
Which is cheaper, Premium Inboxes or Primeforge?
As of Nov 13, 2026, Premium Inboxes is cheaper to start with: $3.50 a month, against $38 a month for Primeforge. Premium Inboxes starts at $3.50 per inbox / month, and Primeforge starts at $38 per month for 10 mailbox slots, billed yearly ($45 billed monthly).
Which has a free plan, Premium Inboxes or Primeforge?
As of Nov 13, 2026, neither Premium Inboxes nor Primeforge has a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.