Signal House Review (2026)500 Numbers Cost Less Than 499
Two things are missing from a page that is otherwise unusually specific.
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Pricing (2026)
✓ Pricing re-verified 7 Aug 2026
(2026-08-07, read on their own pricing page) Usage-based, no platform subscription. SMS on a 10DLC local number costs $0.0065 per segment with no minimum, falling on volume: $0.0050 from 500k segments a month, $0.0045 from 1m, $0.0040 from 2m, $0.0035 from 5m and $0.0030 from 10m. Numbers are $1.00 a month, dropping to $0.50 between 500 and 1,000 numbers and $0.25 above 1,000.
MMS is $0.0200 per segment, $0.0170 above 500k. Toll-free numbers are $1.00 a month with SMS from $0.0079 down to $0.0050. Number lookup is $0.005. A2P 10DLC registration is billed separately: $4.50 for the brand, $15 one-time per campaign, then $1.50 a month for a low-volume campaign or $10 a month for a standard one. Carrier fees are passed through on top: outbound AT&T $0.0035, Verizon $0.0045, T-Mobile $0.0045.
A2P approval is quoted at 72 hours or less, dropping to 48 hours above 500k segments a month. Plans change — always verify the live price on their site.
What the pricing page doesn’t say
The first is voice. The product is sold as an SMS and Voice API and the pricing page publishes no voice rate at all — nor short code pricing. If the voice half is why you are looking, you cannot budget it from public information and will have to ask. The second is the arithmetic behind the Twilio comparison, which is the whole pitch. Take the entry rate with no minimum.
Signal House is $0.0065 a segment against Twilio’s $0.0083, which reads as a 22% saving. But carrier fees are a pass-through and identical either way: add T-Mobile’s $0.0045 to both and you get $0.0110 against $0.0128 — about 14%, not 22%. Numbers narrow it further, $1.00 against $1.15. So the saving is real and it is worth having at volume, but it is a discount on the platform margin rather than on your bill, and the headline does not make that distinction.
On a million segments a month that difference is roughly $1,800 a month against Twilio’s list — worth switching for, provided the voice side does not turn out to be where the money goes. Worth noting on the other side: Signal House prints its A2P 10DLC registration fees on the pricing page, and Twilio’s equivalent page says only that fees apply and points elsewhere. Being able to see the whole bill before you sign is not nothing.
What Signal House does
SMS and Voice API positioned as a Twilio alternative. Usage-based with no platform fee: $0.0065 per SMS segment with no minimum, down to $0.0030 above 10m, and $1.00 a month per local number. A2P 10DLC fees are published; voice rates are not.
What buyers report about Signal House
Recurring themes from the buyer-review sites listed at the foot of this page, read in August 2026. We have not run Signal House ourselves, so this is other buyers' experience rather than ours. We summarise it here because the complaints are usually the part a vendor page leaves out.
- • A2P 10DLC registration is what buyers actually credit, and they quote times: approval on the first attempt in under 24 hours (US, August 2026) after repeated rejections elsewhere, and a campaign live in about two days with documentation the reviewer found clear enough to follow without guesswork (US, August 2026).
- • GoHighLevel agencies are the loudest group in the record. One mid-market owner (August 2026) moved roughly 140 client accounts across, runs day-to-day contact through a dedicated Slack channel, and values seeing real deliverability from upstream carriers rather than GHL's native path.
- • Support is free and staffed by people who know messaging, and reviewers contrast that explicitly with being steered toward paid help elsewhere: several name the individuals who walked them through brand registration and number configuration.
- • Developers report the newer API and its webhook model are a genuine improvement, with documentation described as much better than the previous generation (July 2026).
- • The lowest-rated review (US, November 2025) is a list of operational failures worth reading in full before you switch: campaign verification that took nine days per campaign instead of the promised window, top-ups capped at $100 with no auto-recharge, no alert when the balance ran out so messages failed silently, and an outage at their downstream carrier partner that left messages undelivered while billing continued. Signal House replied publicly, attributed the outage to that partner, said their contract requires a 48-hour campaign review, and said auto-recharge was about to ship.
- • An insurance company reviewer (April 2026) reports past billing problems and asks for a real ticketing and record-keeping system rather than ad-hoc support threads.
- • Small undocumented rules keep surfacing: a $30 minimum wallet balance before you can submit, mentioned nowhere until you hit it (August 2026), and GoHighLevel-specific setup steps that reviewers would rather read than ask about — support answers fast, but the written docs lag the product.
Where the ratings disagree. 185 reviews averaging 4.8, and the shape is lopsided: 167 at five stars, two below four. But look at who is writing before you weigh that. The record is dominated by small businesses and GoHighLevel agencies buying SMS with hands-on onboarding, so it is strong evidence about A2P approval speed and about support, and no evidence at all about the voice half of the product — not one reviewer mentions voice, and the vendor publishes no voice rate either.
Number 500 makes your bill drop by $249
There is no platform subscription here at all — everything is usage-based, and the page is unusually specific about it (2026-08-07, read on their own pricing page). SMS on a 10DLC local number is $0.0065 a segment with no minimum, falling to $0.0050 from 500k segments a month, $0.0045 from 1m, $0.0040 from 2m, $0.0035 from 5m and $0.0030 from 10m. MMS is $0.0200, or $0.0170 above 500k. Numbers are $1.00 a month, $0.50 between 500 and 1,000, and $0.25 above 1,000.
Lookup is $0.005. That numbers ladder contains something worth catching, because both breaks are applied to the whole estate rather than to the numbers above the threshold. At 499 numbers you pay $499 a month. At 500 you pay $250. Adding one number reduces your bill by $249 — and the same thing happens again at 1,000, where 999 numbers cost $499.50 and 1,000 cost $250. If you are anywhere near either line, and outbound SMS at scale means rotating numbers, this is free money for the asking.
The saving against Twilio that headlines the pitch is real but a good deal narrower than advertised once carrier fees go on both sides of the sum, and the knock takes that apart. What belongs here is what happens to whatever gap survives as you scale, because it gets structurally smaller as you grow, which is the opposite of what procurement instinct expects. At the entry rate the carrier fee is 41% of your all-in cost per segment.
At 10 million segments a month, where Signal House charges $0.0030, the same unchanged carrier fee is 60% of it. The higher your volume, the smaller the share of your bill any vendor choice can move. Two more things. MMS barely benefits from volume: it is 3.1 times the SMS rate at entry and has a single 15% break, against SMS's five steps down to a 54% reduction — so a picture-heavy programme should be costed separately rather than assumed to scale.
And A2P 10DLC registration is billed apart: $4.50 for the brand, $15 once per campaign, then $1.50 a month for a low-volume campaign or $10 for a standard one. Signal House prints those on the pricing page; Twilio's equivalent page says only that fees apply and points elsewhere. Seeing the whole bill before you sign is not nothing. The gap to be aware of is voice. If the voice half is why you are here, you cannot budget it from public information — ask, and get it in writing, before the SMS arithmetic above persuades you of anything.
How to actually use Signal House
Register your A2P 10DLC brand and campaign first, because nothing sends until that clears and it is billed apart from everything else: $4.50 for the brand, $15 once per campaign, then $1.50 a month for a low-volume campaign or $10 for a standard one. Approval is quoted at 72 hours or less, so start it before you build. Model your cost per segment all-in rather than from the platform rate.
Add the carrier pass-through — AT&T $0.0035, Verizon $0.0045, T-Mobile $0.0045 — to whatever tier your volume reaches, because that is the number that goes on your invoice and it is the number any competitor comparison has to use too. Count your numbers before you provision them. The volume breaks apply to the whole estate, so 500 numbers cost $250 while 499 cost $499, and 1,000 cost $250 while 999 cost $499.50.
If you are near either line, cross it. And if you need voice, ask for the rate in writing now. The product is sold as SMS and Voice, and the pricing page publishes no voice rate at all — so the half of the product you may care most about is unbudgetable from what is public.
The natural comparison is Twilio — the comparison Signal House invites, and it is checkable. On the entry tier Signal House charges $0.0065 a segment against Twilio’s $0.0083, and $1.00 a month for a local number against $1.15. Carrier fees are pass-through and the same on both, so the all-in gap is nearer 14% than the 22% the message rate alone suggests. What Twilio has that does not show up in a rate table is depth: a far larger ecosystem, more documentation and a longer track record, plus voice pricing you can actually read. Both price lists here were read on 2026-08-07 — verify them yourself, because usage-based rates move and neither vendor publishes every fee in one place..
More on Signal House
Everything we publish about Signal House links back here — the review stays the honest hub:
The ex-banker filter — the same yardstick on every review (how we review): My ex-banker filter is simple: does Signal House remove a real cost — time, errors, missed revenue — bigger than what it charges?
Frequently asked questions
What should I weigh before buying Communication & Voice software?
Generally yes, since this category is built for it, but the details that bite are timezone handling, how per-seat cost scales as the team spreads, and whether numbers, routing or coverage exist in the countries your people actually sit in. Availability varies far more by country than the marketing pages suggest, so check your specific regions before committing.
Is this a hands-on review of Signal House?
This is a researched assessment, not a hands-on test — where we've used a tool ourselves, we say so explicitly. We name what each tool is genuinely good and bad at, and we earn a commission only if you sign up, at no cost to you.
- Buyer reviews on G2, read August 2026.
- 2026-08-07, read on their own pricing page.
- A dated screenshot of that pricing page, kept on this site as the receipt.
Others in this category
The communication & voice tools closest to Signal House that we have also reviewed. They overlap rather than match:
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