Signal House is a developer API for sending SMS and MMS over 10DLC and toll-free numbers in the US market, and describes itself as a Tier 2 messaging aggregator. It is aimed at developers building an app that needs text alerts, verification codes or reminders for US users, and it requires a programmatic integration.
Key features
- 10DLC messaging: Business texting from local US numbers.
- Toll-free numbers: For SMS and MMS.
- MMS: For images and attachments.
- API: Direct integration with your app.
Pricing
| Plan | Price | What you get |
|---|---|---|
| 10DLC | From about $0.0065/segment | Down to about $0.0030 above 10M messages/month |
| Toll-free | From about $0.0079/segment | SMS |
| MMS | From about $0.02/message | Media messages |
| Number | About $1/month | Per number |
Carrier pass-through fees of about $0.0035 to $0.0045 per message are billed separately on top of these prices.
Prices can change, so check Signal House’s official pricing page before you subscribe.
Pros and cons
| Pros | Cons |
|---|---|
| Per-message pricing that drops with volume | Requires a developer integration |
| Supports 10DLC, toll-free and MMS | Focused on the US market |
| Direct integration through an API | Carrier fees are added on top |
Use cases
- Verification codes in an app: Send login codes to users in the US.
- Alerts and reminders: Remind users of appointments or order status.
- A developer side project: Test texting at a low cost per message.
- Messages with attachments: Send images or cards via MMS.
Signal House vs Twilio
Twilio is a full communications platform with global coverage and many services. Signal House specializes in US texting with per-message pricing.
Who it’s best for
Developers building apps that text users in the US.
Skip it if your audience is outside the US or you do not code.
How to get started
Read the developer docs, estimate your cost including carrier fees, then test at small volume.
FAQ
Does it require coding? Yes. It is an API that needs a programmatic integration.
Are carrier fees included? No. They are billed separately.
How much is a number? About $1 a month per number.
Disclosure: al-khwarizmi may earn a commission if you sign up for Signal House through links in this article. This does not change the price you pay, and it does not influence which tools we cover.
