Iridium vs. Item 12

Short answer: Item 12 is a real product and the closest competitor in this category. It reads your LinkedIn inbox and it holds sends in a human review queue, which is more than most tools wearing the LinkedIn MCP label can say. The differences are the bill and the paperwork. Item 12 is $49 a seat with a card required to try it and a monthly credit balance. Iridium is $20 flat with no card and no meter, and it publishes the retention and deletion numbers that Item 12's pages leave open.

Start with what Item 12 gets right

Most tools in this category cannot touch a LinkedIn inbox. They publish posts through the official API and describe that as LinkedIn access. Item 12 is not one of them. It reads and replies to messages.

It also has the thing that actually matters when an agent is holding your account. Its own documentation says "every LinkedIn send from MCP lands in the same human review queue as the web app". A queue that covers the agent surface and not only the web app is the correct design, and plenty of competitors do not have one at all.

Connection is handled the way it should be. Item 12 describes opening "a secure LinkedIn sign-in in a new tab", calls it "hosted OAuth", and says it provides "LinkedIn connectivity and messaging infrastructure through authorized integration partners". Your password is not typed into their app. Iridium works the same way, through a hosted connect page, and never receives or stores a LinkedIn password.

If you are comparing these two, you are comparing two tools that both work. The rest of this page is about price and about what each company has committed to in writing.

What the bill looks like

The seat price is the visible difference. The meter is the one that changes how you use the tool.

A credit balance means the bill has two dimensions. You pay $49 for the seat, and separately you are spending down 200 credits that reset each month and do not carry forward. Unused credits are gone at the end of the month and a heavy week is capped by a number that has nothing to do with what LinkedIn would have allowed.

The behavioural cost is the part people notice later. Metering makes you ration. You think twice before running a search, because the search costs something, and the thinking is a tax on a tool that is supposed to remove work.

Iridium has one number. $20 a month, everything included, and the only ceilings are the safety limits described below, which exist to protect the account rather than the invoice.

The published trust gap

This is the part worth reading slowly, because it is the difference that shows up in a year rather than a week. Your LinkedIn inbox holds other people's private messages. Whatever you connect inherits them.

Two of those rows deserve a note, because a fair comparison has to include them. Neither company publishes a SOC 2 report, and neither publishes an encryption-at-rest claim. Iridium is not ahead there and does not pretend to be.

The rows that do separate them are retention, deletion and readability. "A reasonable period" is not a number. It cannot be diarised, it cannot be audited, and it cannot be quoted to a client who asks what happened to the messages they sent you. Deletion by request means writing an email and waiting rather than clicking a button and watching the session die.

Why client-rendered legal pages matter

Item 12's terms and privacy pages exist. They just do not exist until JavaScript runs. Request them the way a crawler, an archiver or a scripted compliance check would, and you get a loading placeholder instead of the policy.

Three consequences follow. Search engines and AI assistants answering "what is Item 12's retention policy" may have nothing to read. Archives capture the placeholder, so there is no dated record of what the policy said on the day you agreed to it. And anyone doing vendor review with a script has to open a browser and screenshot it.

Policy you cannot fetch is policy you cannot cite. That is a small technical detail that turns into a real problem exactly when you need the text.

Review queues, compared

Both products hold sends. The published wording differs in one place worth knowing.

Item 12's description is clear that MCP sends land in the same queue as the web app. Its text also hedges with "when human review is enabled", and whether the queue can be turned off is not stated. Treat that as an open question rather than a criticism, and ask them.

On the Iridium side the answer is fixed in the code. There is no auto-approve mode anywhere in the product. Every outgoing action is a draft, approving is a separate call, and approval is the only thing that creates a send. Comment and post drafts go further and refuse an unedited AI draft with a 422 that tells you to make the text yours before approving. Bulk sequences ship disabled and return a 501, because they would bypass the quality gate and the recipient cap.

What Iridium does with the $20

Everything is included, so the tool behaves the same on a quiet week and a busy one.

• Inbox that sorts itself. classify_inbox labels threads as recruiter inbound, candidate reply, cold outreach reply or spam, with a confidence score, and you can pass your own label list instead.
• Search with an operator grammar. is:unread, from:, company:, after:, before:, newer:7d, older:30d, has:draft, run as full-text search over message bodies.
• Two kinds of silence, told apart. find_stale_threads separates threads where you sent last from threads where they sent last and you never answered.
• Replies in your register. draft_reply reads up to 30 messages of the thread and writes under 600 characters, no emojis and no exclamation marks, using three of your past messages as style examples.
• Limits enforced on the server. 25 comments a day, 25 outreach actions a day, and a rolling backstop of 90 invites per 7 days. Hit one and the send is deferred to 09:30 the next day rather than failed.
• Replies do not burn the cap. Answering someone in an existing thread creates no new connection, so it is exempt.
• An activity log. Append-only by design, scoped to you, recording what was sent. It deliberately does not copy third-party names into audit rows.

Deleting Iridium never touches your LinkedIn account.

Which one to pick

Pick Item 12 if you want one seat covering both a LinkedIn account and an email account, if agency seats matter to you, or if you have asked them the retention question directly and are happy with the answer.

Pick Iridium if you want one LinkedIn account handled well for $20, no meter to ration, a trial that does not ask for a card, and retention and deletion terms stated as numbers you can hold someone to.

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