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BulkSMS

Chosen by 500+ customers across Tanzania

One SMS to all your customers, members and staff — anywhere in Tanzania.

For businesses and organisations of every size, from a verified sender name. Write it once, in Swahili or English, and send it in seconds.

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Verified senders only 10 free credits Pay by mobile money
99.2% Delivery rate 100% All TZ networks 24/7 Local support
Proven on Tanzania’s biggest days.

Sign up in minutes.
Your own name in days.

  1. About 2 minutes

    Sign up

    Just your phone number and your name.

  2. 10 free credits

    Verify your ID

    Upload your NIDA ID, business registration or TIN. Once verified, send a free sample SMS.

  3. Credits in seconds

    Top up by mobile money

    Buy only what you need, when you need it.

  4. A few working days

    Request your sender name

    Available after your first top-up. Your credits wait safely until it’s live.

Pay only for what you send.

Swahili or English, same price. A reminder to 300 people, one SMS each, costs at most TZS 7,500.

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Packs from TZS 12,500 for 500 SMS, down to TZS 20 per SMS on the largest pack.

Or top up any amount, from 100 SMS for TZS 2,500.

Sending more than 200,000 a month? Call us for a volume rate.

Send from your pocket.

At the office, in the shop or on the road: send your message, top up on the spot and see every delivery as it happens.

Download on the App Store Get it on Google Play

Free to install · Android 8.0+ · iOS 15.1+

BulkSMS app home screen: credit balance, the last 14 days of sending and recent messages

One message. One HTTP call.

Send alerts, OTP codes and receipts from your website or app.

$ curl https://bulksms.oasistech.co.tz/v1/sms \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to": "+255712345678", "sender": "BULK SMS TZ",
       "message": "Your BulkSMS code is 482913."}'
Read the API docs → WordPress, WooCommerce & WHMCS plugins →

Questions? We have answers.

What does one credit buy?
One SMS of up to 160 characters, to one phone. Swahili and English cost the same. Emoji and curly quotes shorten an SMS to 70 characters, so a long one may use 2 or more credits. You see the exact count before you send, and messages a network refuses on submission are refunded automatically.
My trial SMS says BULK SMS TZ. When do I get my own name?
Trial SMS go out as BULK SMS TZ with a fixed sample message, once your ID is verified. After your first top-up, request your own name: 3 to 11 letters, numbers or spaces. We check it and register it with every network, usually in a few working days. From your first top-up until it is live you cannot send, but your credits wait and nothing is charged. Then every SMS carries your name and your own words.
Do I need a registered business to use BulkSMS?
No. Sole traders and groups can register with the owner’s or leader’s NIDA ID. Registered businesses and organisations add their registration certificate or TIN. Every account is verified before its first send.
How do top-ups work?
Pick a pack or your own amount, and enter the phone to charge. A prompt pops up on that phone. Enter your mobile money PIN and your credits arrive in seconds. Bank transfer works too; our team adds those credits by hand.

Still have a question? Call us or visit support.

Proven on Tanzania’s biggest days.

  • 337,963
    SMS in three phases
    Muslim World League
  • 185,000
    schedule & info SMS
    Al-Hikma Foundation
  • 8,500
    personal VIP invitations
    Tanzania Business Forum
  • 35,000
    notices to parents
    Mtoto Mjasiriamali
Read all six success stories
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