Grasshopper does one thing well: it gives a solo operator or small team a real business phone number that rings on a personal cell, with voicemail, extensions, and a tidy app. If you've been handing out your personal mobile number and you're tired of it, Grasshopper solves that problem cleanly. I'm not going to pretend otherwise.
But a lot of people buy Grasshopper expecting it to also be their SMS marketing engine — and that's where the fit gets thin. A virtual phone line and an SMS campaign platform are two different jobs.
Full disclosure: I work for ReadySMS, so I have a side here. I'll keep the comparison honest and tell you the cases where Grasshopper is genuinely the better buy. I won't quote Grasshopper's pricing or feature specifics from memory — those change, so confirm anything on their site before you decide.
Where Grasshopper is actually the right tool
Buy Grasshopper if your main need is a professional phone presence, not bulk outreach:
- You want a separate business number that forwards to your existing phone without a second device.
- You need extensions, a basic auto-attendant, and shared voicemail for a 1–5 person team.
- Your texting is conversational and low-volume — replying to a customer who texts your business line, not blasting 2,000 contacts.
- You don't want to think about carrier registration at all, and you're sending a handful of texts a day.
For that profile, Grasshopper is a fine, polished product. The app is clean and setup takes minutes. If you read past this point and think "I just want a nicer business number," go buy Grasshopper. Seriously.
Where the virtual-number model breaks down
The trouble starts when "let me text a few customers" turns into "let me text my whole list."
A virtual phone number is built around two-way conversations, not campaigns. Three things tend to surface:
- Throughput and filtering. Sending the same or similar message to hundreds of numbers from a single line looks like spam to carriers. Unregistered or lightly-registered traffic gets filtered — meaning your texts silently don't arrive. You won't always get an error; the message just dies.
- No real campaign tooling. Segmenting a list, scheduling a blast, managing opt-outs at scale, reusable templates — these are campaign features, and a virtual-line product generally isn't built for them.
- Compliance is on you, with no scaffolding. The moment you're doing marketing texts to a list, A2P 10DLC registration, STOP handling, and consent records stop being optional. A virtual-number app rarely walks you through that.
None of this is Grasshopper failing at its job. It's a phone product being asked to do a marketing-platform job.
What ReadySMS is built for
ReadySMS is a messaging platform for sending and receiving SMS at scale — campaigns, two-way inbox, contact management, and the compliance plumbing underneath. It sits as a thin layer over carrier infrastructure, which is how the per-message cost stays low. Same registered 10DLC routes the big platforms use; less markup on top.
The short version of what you get that a virtual number doesn't:
- Registered SMS at transparent per-segment rates (worked math below).
- Done-for-you A2P 10DLC — brand and campaign registration handled in-app.
- Bulk campaigns, templates, and a conversations inbox in one place.
- Native GoHighLevel integration if you run on GHL.
- A built-in power dialer for outbound calling alongside your texts.
- 20 free test sends to try it, plus a $25 credit when you register.
The price comparison that matters: per-message, not per-line
Virtual phone products usually price by line and feature bundle — a monthly seat that includes some messaging. That's reasonable when you send a little. It gets expensive, fast, when you send a lot, because you're paying a per-seat model to do per-message work.
ReadySMS prices the actual unit: the SMS segment. Here are the tiers (each plus a flat $0.0045/segment carrier pass-through, billed separately so the bill is legible — more on why that line item matters in this breakdown):
| Tier | Volume / month | Per segment |
|---|---|---|
| Starter | 0–50,000 | $0.0155 |
| Growth | 50,000–500,000 | $0.0125 |
| Enterprise | 500,000+ | $0.0028 |
Worked example
Say you send a 150-character promo (one GSM-7 segment) to 2,000 contacts once a week — about 8,000 segments a month. On the Starter tier:
`` 8,000 × ($0.0155 + $0.0045) = 8,000 × $0.0200 = $160.00/month ``
Watch the segment math, though. A segment is 160 GSM-7 characters; longer messages split into 153-character pieces. Drop a single emoji in and the limit collapses to 70 characters (67 per piece in a multipart). So a 175-character message with an emoji is three unicode segments, and that same 2,000-contact blast becomes:
`` 2,000 × 3 × $0.0200 = $120.00 per send → ~$480/month ``
One emoji tripled the bill. Plain text where you can; save the emoji for when it earns its keep.
The compliance you'd otherwise have to bolt on
This is the part virtual-number buyers underestimate. If you're sending marketing SMS to a list, you're in TCPA and 10DLC territory whether you registered or not. ReadySMS builds the scaffolding in:
- Full A2P 10DLC in-app — brand (~$10/mo) plus campaign (~$20/mo) in carrier fees, approval typically 1–3 days. (Costs broken down here.)
- Automatic STOP / opt-out handling — an inbound STOP propagates so that contact won't be messaged again across your campaigns.
- Quiet-hours enforcement — sends held outside permitted local hours for the recipient, which reduces TCPA exposure.
- Litigator / DNC scrubbing — known TCPA-litigator and DNC numbers can be screened before send.
I'll be straight: none of this makes you lawsuit-proof. Compliance is ultimately the sender's responsibility. But the difference between "I have STOP handling, consent records, and quiet hours" and "I blasted my contacts from a virtual line with no records" is the difference that matters when something goes sideways. If you want the blunt math on that, one TCPA lawsuit vs. scrubbing your whole list lays it out — exposure runs $500–$1,500 per text, and standalone list scrubbing costs $0.005 per contact.
Two things Grasshopper doesn't try to do at all
A built-in power dialer
If you're a solopreneur who texts leads and calls them, ReadySMS includes outbound voice — manual and queue dialing, call recording, voicemail drop, and speed-to-lead auto-dial that fires the moment a new lead comes in.
The free tier is genuinely free: $0/mo, 1 agent, 1 number, 500 minutes included, then $0.06/min. Pro is $29/agent/mo at $0.05/min. The pairing that works well for solo operators: an instant SMS plus an auto-dial when a lead hits your form, so you're the first voice they hear inside five minutes. If voice is central to your workflow, the PhoneBurner comparison goes deeper on dialer mechanics.
Native GoHighLevel integration
If you run your business on GHL, this is the big one. ReadySMS connects via OAuth with two-way sync of inbound and outbound messages, mapped per location, so the conversation lives in GHL where you already work. A virtual phone product won't give you that. Setup is walked through in the GHL SMS guide, and if GHL is your platform, the best SMS provider for GoHighLevel buyer's guide is the more thorough read.
How to actually decide
| Your situation | Better fit |
|---|---|
| You just want a professional business number that forwards to your cell | Grasshopper |
| Extensions + auto-attendant for a tiny team, very light texting | Grasshopper |
| You're texting a list — promos, reminders, follow-ups | ReadySMS |
| You need 10DLC done for you and real opt-out handling | ReadySMS |
| You run on GoHighLevel | ReadySMS |
| You want SMS + a dialer in one place | ReadySMS |
These aren't mutually exclusive, either. Plenty of solo operators keep a virtual business line and run a dedicated SMS platform for campaigns. The two jobs are different; the tools can be too.
The practical takeaway
Grasshopper is a good phone product. If your need is "give me a real business number," it does that, and switching costs you nothing in headaches. But the second your texting becomes outreach — a list, a schedule, opt-outs, registered routes so the messages actually land — you've outgrown what a virtual line is built to do, and you'll feel it in deliverability and compliance gaps before you feel it anywhere else.
If that's where you are, you can try it with 20 free test sends to your own number, and you pick up a $25 credit when you submit 10DLC registration. Run your own numbers on the cost calculator first — plug in your monthly volume and your average message length, and see what pay-as-you-go per-segment pricing does to the math. Then start with the free test sends and send one real campaign before you commit to anything — no monthly platform fee, no contract.