Side by side

InterPay + DDMS vs SlimPay

Both stand on direct debit processing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

InterPay + DDMS

Paid Web

InterPay + DDMS combines collection administration, Bacs report handling, and submission workflows. Businesses should ask Interbacs about pricing and how its optional HSM workflow fits their requirements.

Visit InterPay + DDMS

SlimPay

Paid AndroidAPIiPhone+1

Consider SlimPay if your business needs euro payments through SEPA schemes and wants API, batch, or hosted checkout integration options. Look elsewhere if you need an ERP, CRM, or subscription relationship-management platform, or require a free plan.

Visit SlimPay

The facts

	InterPay + DDMS	SlimPay
Free plan	Not published	No
Open source	Not published	Not published
Runs on	Web	Android, API, iPhone, Web
Lowest paid plan	Free or on request	Free or on request
Plans published	1	1
Maker	Not published	Not published
Website	interbacs.com	slimpay.com
On direct debit processing software	#18 of 22	#14 of 22

InterPay + DDMS: what it does well

Creates, edits, and cancels Direct Debit mandates.
Validates bank details against Bacs rules.
Downloads and processes ADDACS and AWACS reports.
Online sign-up pages can pass data through an API.
Support is available for installation and software questions.

What to know first

Pricing is available on request.
The listed platform is web only.

SlimPay: what it does well

Supports SEPA CORE and B2B direct debits and credit transfers.
Customers can sign mandates with a checkbox or one-time password.
Offers REST API and batch File Transfer integrations.
Checkout can be integrated into websites and mobile apps.
Failed direct debits can be retried manually or automatically.

What to know first

There is no free plan.
Pricing is available by contacting SlimPay.
Production access follows validated pre-production tests and completed KYC.

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