Is SMS Gateway Master free?

Yes — there is a permanent free tier for using the app as a default SMS messaging app. For the API gateway feature, there is a 7-day free trial with 100 SMS/day. After the trial, a PRO subscription is required: €5/month or €52/year.

How does SMS Gateway Master pricing compare to Twilio?

Twilio charges $0.0075 per SMS outbound. For 1,000 SMS/month that is ~$7.50; for 10,000 SMS/month that is ~$75. SMS Gateway Master is €5/month flat for 10,000 SMS/day (up to ~300,000/month). For any volume above ~670 SMS/month, SMS Gateway Master is cheaper than Twilio.

How is the subscription billed?

Subscriptions are processed securely through Google Play Billing. You can subscribe monthly (€5/month) or annually (€52/year, equivalent to €4.33/month). Payment is handled entirely by Google — Simpapp never stores payment data.

Can I cancel anytime?

Yes. Cancel anytime from the Google Play subscription management page. Your PRO access continues until the end of the current billing period.

Does the subscription include the default SMS app features?

The full-featured default SMS messaging app (conversations, dark mode, Material Design 3) is included at no cost. The PRO subscription is only required to exceed the free API trial limit of 100 SMS/day.

Pricing – SMS Gateway Master | €5/month Flat-Rate SMS API

Name: SMS Gateway Master
Brand: Simpapp
Availability: InStock

Choose Your Plan

All plans include the full-featured default SMS app. The PRO subscription unlocks the API gateway for bulk sending.

📱 FREE

€0

forever

✓ Full default SMS messaging app
✓ Material Design 3 + dark mode
✓ Local conversation history (Room DB)
— API gateway: 7-day trial only (100 SMS/day)
— No webhooks after trial
— No bulk sending after trial

Download Free

⭐ Most Popular

🚀 PRO Monthly

€5

per month

Billed monthly via Google Play

✓ Everything in FREE
✓ 10,000 SMS/day via REST API
✓ Real-time delivery webhooks
✓ API key authentication
✓ Python, PHP, JS, VBA, Bash integrations
✓ WooCommerce, Zapier, Make compatible

Get PRO Monthly

💎 PRO Annual

€52

per year

Save €8 — €4.33/month equivalent

✓ Everything in PRO Monthly
✓ 10,000 SMS/day via REST API
✓ Real-time delivery webhooks
✓ API key authentication
✓ Best value for continuous use
✓ Billed once per year via Google Play

Get PRO Annual

💡 Subscriptions processed securely via Google Play Billing. Cancel anytime. SMS delivery uses your carrier plan.

Cost Comparison: SMS Gateway Master vs Twilio vs Vonage

How much do 1,000 or 10,000 SMS messages cost each month on each platform?

Metric	SMS Gateway Master ✅	Twilio	Vonage (Nexmo)	AWS SNS
Cost per SMS	€0 per SMS (flat rate)	$0.0075+/SMS	$0.0065+/SMS	$0.00645/SMS
1,000 SMS/month	€5 flat	~$7.50	~$6.50	~$6.45
10,000 SMS/month	€5 flat	~$75	~$65	~$64.50
100,000 SMS/month	€5 flat *	~$750	~$650	~$645
Setup complexity	Install app → get key (5 min)	Account + number + compliance	Account + number purchase	AWS account + complex config
Phone number	Your own SIM (free)	Virtual number ($1+/month)	Virtual number	Virtual number
Privacy	Local-first, no cloud storage	Cloud, message content stored	Cloud, message content stored	Cloud, message content stored
Free trial	7 days, 100 SMS/day	$15 credit only	€2 credit only	AWS free tier (limited)

* 10,000 SMS/day cap (~300,000/month). Carrier daily limits may also apply. Prices approximate and subject to change.

Pricing FAQ

Everything you need to know before subscribing.

Is there really a free plan — no credit card? ▼

Yes. Download SMS Gateway Master from Google Play for free. The default SMS messaging app is free forever — no subscription, no credit card. The API gateway feature includes a 7-day trial with 100 SMS/day at no cost. A PRO subscription is only required after the trial expires if you need the API.

Are there per-message fees on top of the subscription? ▼

No. The subscription is the only charge from Simpapp. SMS delivery goes through your phone's own carrier — most mobile plans include SMS at no extra cost. There are no per-message fees, no hidden costs, and no surprise bills.

Why is SMS Gateway Master so much cheaper than Twilio? ▼

SMS Gateway Master routes messages through your own Android phone and carrier, not a cloud SMS network. Twilio operates its own global SMS infrastructure with virtual numbers, carrier agreements, and compliance teams — all of which is baked into the per-message price. SMS Gateway Master uses infrastructure you already own (your phone + carrier plan), which is why it can offer a flat €5/month for up to 10,000 SMS/day.

What is the daily SMS limit and why? ▼

The PRO plan allows 10,000 SMS per day via the API. This limit exists because Android's native SmsManager and carrier rate limits can affect delivery if thousands of messages are sent too quickly. The 10,000/day limit is a practical ceiling that most businesses and developers never reach. For the free trial the limit is 100 SMS/day.

How is payment processed? ▼

All payments are processed by Google Play Billing. Simpapp never sees or stores your payment information. Subscriptions appear on your Google account statement. You can manage or cancel from the Google Play subscriptions page at any time.

Can I cancel mid-month and get a refund? ▼

You can cancel any time and your PRO access continues until the end of the current billing period. Refunds for in-app purchases are subject to Google Play's refund policy. For assistance, contact support-apps@googlegroups.com.

Does the subscription work on multiple devices? ▼

Each PRO subscription is linked to one Google account and one Android device acting as the gateway. The API key is unique per device. If you need to send from multiple devices simultaneously, you would need separate subscriptions per device.

Simple, Transparent Pricing

Choose Your Plan

Cost Comparison: SMS Gateway Master vs Twilio vs Vonage

Pricing FAQ

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