Hardline writes up your calls. Walkie Pro is where the call happens.
Hardline works on the phone line you already use, and nobody you call installs anything. Walkie Pro keeps calls, messages and follow-ups together, with each job in its own feed.
The short answer
Choose Walkie Pro when the person on the other end should keep the same record you do.
Keep Hardline when nobody you work with will install an app at all, and the job's paperwork already runs in a project system the office won't leave.
| What you need to do | Walkie Pro | Hardline | Keep it when |
|---|---|---|---|
| Where the call happens | In Walkie. On a Walkie-to-Walkie call, everyone gets the same recording, transcript and summary. Walkie Pro can also call ordinary phone numbers in the US and Canada. That call is recorded too, but that record stays with you. | Hardline's FAQ says it can keep your existing number through carrier-level call forwarding, or give you a Hardline work number, and “the capture is identical either way.” Source | Keep Hardline when you want a dedicated business phone system rather than calls inside a job. |
| Call audio | Every Walkie call is recorded, and the recording stays with the job. | Hardline says phone calls are “transcribed in real time and no audio is kept.” Source | Keep Hardline when you'd rather phone calls weren't recorded. |
| Where the paperwork goes | In the conversation and the job, next to the messages and photos. | Hardline describes itself as “Not a PM replacement. A documentation layer.” Drafts reach Procore, Autodesk Forma or Fieldwire after you approve them. Source | Keep Hardline when the paperwork already lives in Procore, Autodesk or Fieldwire. |
| Finding it later | Ask Walkie in plain words, and it opens the call or message where it was said. | Hardline says “Ask Hardline” answers from your own calls and documents, with the source linked under every answer. Source | Both apps answer questions from your calls. |
Where the call happens
- Walkie Pro
- In Walkie. On a Walkie-to-Walkie call, everyone gets the same recording, transcript and summary. Walkie Pro can also call ordinary phone numbers in the US and Canada. That call is recorded too, but that record stays with you.
- Hardline
- Hardline's FAQ says it can keep your existing number through carrier-level call forwarding, or give you a Hardline work number, and “the capture is identical either way.” Source
- Keep it when
- Keep Hardline when you want a dedicated business phone system rather than calls inside a job.
Call audio
- Walkie Pro
- Every Walkie call is recorded, and the recording stays with the job.
- Hardline
- Hardline says phone calls are “transcribed in real time and no audio is kept.” Source
- Keep it when
- Keep Hardline when you'd rather phone calls weren't recorded.
Where the paperwork goes
- Walkie Pro
- In the conversation and the job, next to the messages and photos.
- Hardline
- Hardline describes itself as “Not a PM replacement. A documentation layer.” Drafts reach Procore, Autodesk Forma or Fieldwire after you approve them. Source
- Keep it when
- Keep Hardline when the paperwork already lives in Procore, Autodesk or Fieldwire.
Finding it later
- Walkie Pro
- Ask Walkie in plain words, and it opens the call or message where it was said.
- Hardline
- Hardline says “Ask Hardline” answers from your own calls and documents, with the source linked under every answer. Source
- Keep it when
- Both apps answer questions from your calls.
How it all fits together
Call and message the way you already do.
One conversation with each person. Every job you share with them gets its own feed.
Hang up, and it's filed.
Every Walkie call is recorded. The transcript and summary land under the job the call was about. Photos and files stay with their job too.
Loose ends get a date.
Turn any message into a follow-up. Your list is private to you.
Ask, and go straight to it.
Ask Walkie in plain words what was decided, and it opens the call or message where it was said.
Two apps, built from opposite ends
Hardline starts from the phone line. Nothing to install for the person you’re calling, and the write-up can flow into the systems the office already runs.
Walkie Pro started from the other side: the conversation itself. Calls, messages, photos and follow-ups sit together, with each job in its own feed, and on a Walkie-to-Walkie call everyone on the call gets the same recording, transcript and summary. Walkie Pro can also call ordinary phone numbers in the US and Canada. That call is recorded too, but that record stays with you.
That’s a real ask, and it is only about the shared record. A call out to an ordinary number needs nothing on the other end. Everyone who keeps the same recording, transcript and summary installs Walkie. On a one-off call it isn’t worth it. On the relationship you have three jobs with, it is.
Keep Hardline when…
Keep Hardline when the paperwork already runs in a system the office won’t leave, and nobody you work with will install an app at all. Choose Walkie Pro when the person on the other end should keep the same record you do.
Try it on the one relationship where both sides need the same record.
Questions
Does Hardline record calls?
Hardline says phone calls are transcribed in real time and no audio is kept. Every Walkie call is recorded.
Do I have to change my phone number for Walkie Pro?
No. Walkie Pro is an app. Your phone number stays yours.
Does Walkie Pro have its own phone number?
On some plans, yes: a Walkie line, a work number people can call without the app.
Do the people I work with have to pay?
No. Messages and calls are free on every plan, including Free.
Sources
- Hardline — Best AI Voice Tool for Construction (product site) · accessed 2026-09-27
- Hardline — Notes on Calls, Site Walks & Meetings · accessed 2026-09-27
- Hardline — FAQ: How Hardline Works for Construction Teams · accessed 2026-09-27
Keep the record without writing it twice.
Walkie Pro is a construction communication app. It keeps the messages and calls you already make organized by job.