The writing was never the bottleneck. Knowing who to send it to was.
This is the real status quo for most service businesses, and it deserves a straight comparison rather than a strawman.
The short answer
ChatGPT will write you a better email than most agencies will, in ten seconds, for free. That is true, and we are not going to pretend otherwise. What a blank prompt cannot do is know which forty customers should get it, remember what you sent in March, or stop you emailing someone who asked you to leave them alone. The writing was never the hard part of marketing a service business — the follow-through was.
Side by side
- Cost
- Arc Studio$99–$899 a month.
- ChatGPT and a spreadsheetFree, or the price of a chat subscription you already pay for.
- Quality of the writing
- Arc StudioComparable — the same class of model is doing the drafting.
- ChatGPT and a spreadsheetComparable. We are not claiming to write better prose.
- Where it starts
- Arc StudioYour records: who has gone quiet, which job types repeat, what just happened in your service area.
- ChatGPT and a spreadsheetA blank prompt and whatever you can remember to type into it.
- Deciding who to contact
- Arc StudioArc files opportunities with the evidence attached, so the list comes with a reason.
- ChatGPT and a spreadsheetYou, from memory, usually late on a Sunday.
- Memory across months
- Arc StudioEvery send, decision, and outcome recorded against the customer it touched.
- ChatGPT and a spreadsheetThe chat window, until you close the tab.
- Unsubscribes and suppression
- Arc StudioEnforced automatically on every send.
- ChatGPT and a spreadsheetA column in the spreadsheet that you have to remember to check.
- Opt-out link and required footer
- Arc StudioAdded to every outbound message.
- ChatGPT and a spreadsheetYours to remember, every time.
- Getting it out the door
- Arc StudioApprove it and Arc sends it.
- ChatGPT and a spreadsheetCopy, paste, reformat, into whatever tool actually sends.
When doing it yourself is the better choice
We would rather you read this now than find it out in month three.
- You send a handful of emails a year. A monthly subscription is overkill and we would rather tell you now than churn you in month three.
- You genuinely enjoy the work and have the hours for it. Arc's value is the hours, not the words.
- You are still testing whether marketing moves the needle for your business at all. Prove it by hand first, then automate the thing that worked.
- Your customer list lives in one place, is small enough to hold in your head, and you talk to most of them anyway.
Nothing reaches a customer until you approve it.
Arc finds the opportunity, drafts the campaign, and prepares the creative. You decide what actually goes out — on every single piece, with no setting that turns the gate off.
This comparison was last reviewed on July 30, 2026.