Billing and invoicing platform
Billing that collects on time, every time.
Recurring and usage-based billing, invoicing, online payment collection, automatic reminders and a customer self-service portal, with finance reports and integrations to your accounting system.
- ISO 9001 certified
- iOS, Android and web
- Launched under your brand
Live product tour
Watch the whole flow, end to end.
One real journey across 2 roles. It plays on its own; tap any step or role to explore.
Billing run complete · 12,406 invoices Illustrative screens with sample data. Your platform carries your own brand.
In short
What is billing software?
Billing software creates invoices for one-off, recurring and usage-based charges, collects payments online, sends reminders and keeps customers' accounts up to date. Finance teams see receivables and revenue in real time. Appsums builds and configures it for subscription, utility, telecom and service businesses.
- Apps included
- Billing console, customer portal, finance reports
- Billing
- One-off, recurring and usage-based
- Collection
- Cards, direct debit and bank transfer
- Platforms
- Web, iOS and Android
- Demo
- Free, live walkthrough
Business challenges
The problems it solves, and how.
What holds billing & invoicing software businesses back today, and what changes when you run on this platform.
-
01
The challenge
Invoices go out late
Billing runs are prepared by hand every month.
How the platform solves it
Scheduled billing runs for recurring and usage-based charges.
-
02
The challenge
Customers pay late
Payment depends on someone remembering to chase.
How the platform solves it
Online payment links, auto-pay and automatic reminder sequences.
-
03
The challenge
Usage is billed inaccurately
Meter readings and usage data are copied manually.
How the platform solves it
Usage imported from your systems and rated automatically.
-
04
The challenge
Customers call to ask about bills
No self-service for invoices or payments.
How the platform solves it
A portal for invoices, payments, plans and statements.
-
05
The challenge
Finance cannot see receivables
Ageing reports are built in spreadsheets.
How the platform solves it
Real-time receivables, revenue and collection reports.
The platform
Every app you need, on one platform.
Every user gets an app made for their job, all running on the same backend, data and rules.
-
Billing console
WebPlans, customers, billing runs, invoices and collections.
- Plans and pricing
- Customer accounts
- Billing runs
- Usage rating
- Credit notes
- Dunning
-
Customer portal
Web and mobileInvoices, payments, plans and statements for customers.
- Invoices and statements
- Pay online
- Auto-pay
- Plan changes
- Payment methods
- Support
-
Finance reports
WebReceivables, revenue, collections and tax reports.
- Ageing
- Revenue recognition
- Collections
- Tax reports
- Cash forecast
- Exports
Illustrative screens. See every app working together in the live tour.
Features
Everything you need to run and grow.
Built-in features across the whole platform. Anything missing for your market, our engineers add.
-
Plans and pricing
- Recurring plans
- Usage and tiered pricing
- Add-ons
- Discounts
- Proration
-
Invoicing
- Billing runs
- Branded invoices
- E-invoicing
- Credit notes
- Multi-currency
-
Collection
- Cards and wallets
- Direct debit
- Payment links
- Auto-pay
- Partial payments
-
Dunning
- Reminder sequences
- Late fees
- Suspension rules
- Payment plans
- Collector tasks
-
Self-service
- Customer portal
- Statements
- Plan changes
- Payment methods
- Disputes
-
Reports
- Receivables ageing
- MRR and revenue
- Collection rate
- Tax
- Exports to accounting
Solution architecture
Enterprise architecture, built to scale.
A modular, API-first platform: each layer scales on its own, and new apps, markets or partners plug in without a rebuild.
- Modular servicesScale busy parts like ordering or payments independently
- API-firstDocumented APIs for partners, POS, ERP and new channels
- Secure by designEncryption, role-based access and full audit logs
- Your cloud, your regionDeploy where your data rules require
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Channels
- Billing console
- Customer portal and app
- Partner APIs
-
Experience APIs
- Customers
- Plans
- Invoices
- Payments
- Notifications
-
Core services
- Rating engine
- Billing runs
- Invoicing
- Dunning
- Ledger
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Data and analytics
- Billing database
- Document store
- Reporting warehouse
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Integrations
- Payment gateways
- Direct debit
- E-invoicing
- Accounting and ERP
- CRM
-
Cloud and security
- Containerised services on AWS or Google Cloud
- Encrypted storage
- Backups
- Monitoring
- Role-based access
Technology and integrations
Proven technology, ready-made connections.
Popular, well-supported technology that is easy to scale and hire for, connected to the payment, maps and messaging partners your market uses.
Technology stack
- Web
- ReactNext.jsTypeScript
- Mobile apps
- Flutter
- Backend
- JavaSpring BootNode.js
- Data
- PostgreSQLRedis
- Cloud
- AWSDocker
- Documents
- PDF generationemail delivery
Integrations
- Payments
- StripeHyperpayMADADirect debitBank transfer
- Tax
- E-invoicing and VAT platforms where required
- Business systems
- CRMERP and accounting
- Usage data
- MetersTelecom and platform usage feeds
- Messaging
- EmailSMSWhatsApp Business
Make it yours
Your business model, your configuration.
Choose how you earn, then set the platform up for your brand, market and rules, without custom code for the basics.
Ways to earn
- Faster cash
Shorter days sales outstanding.
- Less admin
Billing runs and reminders without manual work.
- Usage pricing
Charge fairly for what customers use.
- Self-service
Fewer billing calls to support.
- Billing as a service
Offer billing to group companies or clients.
What you can configure
- Your brand, invoice templates and domain
- Plans, pricing and usage rules
- Billing cycles and run schedules
- Reminder sequences and late fees
- Tax rules and e-invoicing
- Languages, including Arabic right-to-left
- Currencies, taxes and payment methods
- Roles and approvals
- Custom features, AI and integrations on request
Launch path
From demo to launch, step by step.
One accountable team takes you from the first demo to a live, supported platform.
- 1
Free demo
See the billing console and customer portal working end to end.
- 2
Plan and scope
Agree products, markets, integrations and branding.
- 3
Brand and configure
Your brand, rules, pricing and languages.
- 4
Integrate and test
Payments, accounting and usage data connected and tested on real devices.
- 5
Launch
Apps published to your App Store and Google Play accounts.
- 6
Grow
New markets, features and support from the same team.
Who it is for
Built for businesses like yours.
The same platform, set up differently for each kind of operator.
Subscription businesses
SaaS, memberships and media.
Utilities and facilities
Metered billing for water, power or cooling.
Telecom and ISPs
Plans, usage and add-ons.
Property and service companies
Recurring service charges and rent.
Education providers
Fees, instalments and reminders.
Why Appsums
Engineered by a team that stays after launch.
The same engineers who configure your platform monitor it, support it and add new features as your business grows, under an ISO 9001 certified process.
- 15+
- years in IT
- 8+
- years as Appsums
- 100+
- clients
- 25
- countries
Client projects
Built on this platform, live with clients.
Products we have delivered with this solution and its patterns. All related work
Client voice
What our clients say.
In their own words, from the founders and leaders we build for. All reviews
- 5.0 Clutch · 10 reviews Checked 28 October 2026
- 4.9 GoodFirms · 12 reviews Checked 28 October 2026
- 5.0 The Manifest · 9 reviews Checked 27 October 2026
Long-term partnerships
Work such as Thara Profintech's investment platform in Kuwait continues as an ongoing engineering partnership, release after release.
Clients across regions
Delivery for clients in the GCC, Africa, Asia, Europe and North America.
References on request
During evaluation we arrange conversations with clients in similar sectors.
Security and trust
Security, privacy and IP built into how we work.
Security by design
- Secure architecture and code reviews
- Encryption in transit and at rest
- Vulnerability checks before release
- Dependencies kept up to date
Data protection
- Least-privilege, role-based access
- Separate test and live environments
- Hosting in the region you choose
- Credentials handed back at the end
Contracts and IP
- NDA signed before detailed talks
- You own all code, designs and data
- Clear scope and statements of work
- Confidentiality for every team member
Quality and governance
- ISO 9001 certified quality management
- Documented, audited processes
- Progress and risk reports every sprint
- Release checklists and sign-off
ISO 9001 certified. Quality you can rely on.
Our quality management system is independently certified, so every project follows documented, audited processes from kick-off to support.
Related solutions
Explore related solutions.
Platforms that are often combined with, or built alongside, the billing & invoicing software. All solutions
- ERP Software Modular ERP for accounts, inventory, purchasing, sales and reporting. See the solution
- CRM Software Leads, deals, accounts and tickets with configurable pipelines, automations and reports. See the solution
- Mobile Payment App Customer and merchant apps for QR, card and in-app payments, with settlement and dispute tools. See the solution
FAQs
Frequently asked questions.
Anything else about the billing & invoicing software? Ask us directly. A real engineer reads every message.
Does it support recurring and usage billing?
Yes. Recurring plans, usage-based and tiered pricing, add-ons and proration.
How are payments collected?
Payment links, cards, wallets, direct debit and bank transfer, with auto-pay.
Can it send reminders automatically?
Yes. Reminder sequences, late fees and suspension rules are configurable.
Does it support e-invoicing?
Yes. Invoice formats and e-invoicing integration are configured for your market.
Can it sync with our accounting system?
Yes. Invoices, payments and credit notes sync with your accounting or ERP.
Can you migrate our existing data?
Yes. We plan and run the migration from spreadsheets or legacy systems as part of the launch.
Does it support Arabic?
Yes. Arabic right-to-left, multiple languages and currencies are supported.
Will the apps be under our brand?
Yes. They carry your name and branding and are published on your own app store accounts.
How much does it cost?
It depends on apps, markets and integrations. After the demo we share a clear proposal with options to fit your plans.
