Buy SMS units

SMS is prepaid. Your organisation's wallet holds units — one unit sends one SMS part (up to 160 characters) to one number. There are no monthly fees.

Check your balanceCopy Anchor Link

Go to SMS → Wallet. Available Balance shows the units you have left. Below it you'll see everything credited and spent in Transaction History.

Buy unitsCopy Anchor Link

1. In SMS → Wallet, find Buy SMS Units.
2. Enter a Quantity. The price per unit and the total update as you type — the more you buy, the lower the price per unit (see the Pricing Tiers table).
3. Click Buy & Pay Now to pay straight away, or Add to Cart to pay later with an invoice.

Prices shown are before VAT. VAT is added on the invoice.

Pay nowCopy Anchor Link

A secure payment window opens. Pay by M-Pesa, card or bank transfer. When payment is confirmed you'll see "Payment confirmed! SMS units credited." and your balance updates.

Pay by invoiceCopy Anchor Link

1. Click Add to Cart, open the cart, and click Checkout & Create Invoice.
2. Find the invoice in Management → My Invoices and click Pay.
3. Choose Card / Mobile Money (M-Pesa) or Bank Transfer (our bank details are shown).

Units are credited once the payment is confirmed.

Low-balance alertsCopy Anchor Link

So you never run out mid-campaign, turn on alerts in SMS → Wallet → Low-Balance Alerts:

1. Tick Enable low-balance alerts.
2. Set the Threshold (Units) — e.g. 500.
3. Optionally tick Also send SMS alert.
4. Click Save Settings.

We'll email your organisation's billing contact and admins when the balance drops below the threshold. (Only organisation admins see this setting.)

How many units will I use?Copy Anchor Link

Units are used when a message is sent to the network — even if the phone is off and it later fails. Numbers that have opted out are skipped and never charged. Quick Send shows the exact cost before you send.