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One-time purchase
Built for independent operators who value privacy and simple billing
Screenshots
See Billing Pulse in action
About This Product
Built for independent operators who value privacy and simple billing
Standard invoices track what is owed. Billing Pulse tracks the retainer pool. Consultants and service professionals often manage recurring client retainers, drawdown hours, and phased deliverable milestones. Traditional cloud invoicing tools hide these vital balances behind expensive recurring software fees. Real-Time Drawdowns: Deduct project milestones directly from active retainer funds. Replenishment Warnings: Identify depleted client balances before commencing new deliverable phases. Ad-Hoc Invoicing: Log one-off tasks, consulting calls, and out-of-scope line items cleanly. 12-Month Revenue Horizon: Forecast upcoming billings and recurring retainers across each upcoming month. More reliable than spreadsheets. Simpler than enterprise accounting suites. Billing Pulse is purpose-built for independent consultants, advisory firms, fractional executives, and boutique agencies who bill on retainer and want clean ledger control without administrative bloat. There are no chart-of-accounts setups, banking sync feeds to debug, or recurring software fees to justify. It runs 100% locally on your machine.
What It Helps You Do
A clearer way to move through the work.
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Standalone HTML file
Built for independent operators who value privacy and simple billing
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Zero server dependencies
Built for independent operators who value privacy and simple billing
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100% Browser Local Storage
Built for independent operators who value privacy and simple billing
35sites | MicroApps · Billing Pulse
Track client retainers with precision—without renting software.
Billing Pulse gives solo operators, consultants, and boutique agencies full visibility over client retainer balances, milestone drawdowns, ad-hoc billings, and payment receipts—directly from your web browser with zero subscriptions.
Precision Without SaaS Rent
Standard invoices track what is owed. Billing Pulse tracks the retainer pool.
Consultants and service professionals often manage recurring client retainers, drawdown hours, and phased deliverable milestones. Traditional cloud invoicing tools hide these vital balances behind expensive recurring software fees.
- Real-Time Drawdowns: Deduct project milestones directly from active retainer funds.
- Replenishment Warnings: Identify depleted client balances before commencing new deliverable phases.
- Ad-Hoc Invoicing: Log one-off tasks, consulting calls, and out-of-scope line items cleanly.
- 12-Month Revenue Horizon: Forecast upcoming billings and recurring retainers across each upcoming month.
Local by Design
More reliable than spreadsheets. Simpler than enterprise accounting suites.
Billing Pulse is purpose-built for independent consultants, advisory firms, fractional executives, and boutique agencies who bill on retainer and want clean ledger control without administrative bloat.
There are no chart-of-accounts setups, banking sync feeds to debug, or recurring software fees to justify. It runs 100% locally on your machine.
What It Helps You Do
Everything you need to manage retainers and get paid.
Client Retainer Pools
Maintain client accounts with starting retainer deposits, billable drawdowns, and real-time remaining balance indicators.
12-Month Horizon
Project scheduled milestone invoices, ad-hoc work, and recurring retainer commitments month-by-month over a rolling year.
Flexible Invoicing Types
Generate milestone deliverables, one-off ad-hoc consulting items, or retainer replenishments with dedicated status lifecycles.
Payment Settlement
Record payments with transaction dates, reference IDs, payment methods (ACH, Wire, Check, Card), and custom notes.
Browser Print-to-PDF
Generate clean, unbranded client invoices and payment statements instantly using native browser print formatting.
1-Click Mailto Dispatch
Populate pre-formatted payment notifications and invoice summaries into your default desktop email client with one click.
Financial Health Cards
Monitor active retainer balances, open invoices, overdue amounts, and total revenue collected month-to-date at a glance.
Modal-First Editing
Create and edit clients or invoices in focused modal windows that keep your master directories clean and organized.
JSON Backup Vault
Retain 100% data sovereignty with instant one-click export and import of your complete financial billing ledger.
A Practical Routine
Fund. Deliver. Draw Down. Settle.
Set Up Accounts
Enter client billing details and establish initial retainer deposits or default hourly rates.
Log Work Items
Apply project milestones or ad-hoc deliverables directly against the active client retainer balance.
Issue Statements
Print client invoices to PDF or prepare a balance summary email via your default mail client.
Vault Backups
Export your JSON backup file with one click to keep your complete billing ledger safe offline.
Target Audience
Built for independent operators who value privacy and simple billing.
Consultants & Advisors
Track monthly advisory retainers, monitor drawdown hours, and schedule milestones without monthly software overhead.
Freelancers & Solopreneurs
Bill fixed-price deliverables, log ad-hoc tasks, record partial client payments, and generate PDF invoices on demand.
Boutique Agencies
Maintain clear retainer visibility across multiple client accounts without deploying complex enterprise accounting platforms.
Clear Expectations
What Billing Pulse is—and what it is not.
It is
- A private client billing, retainer, and payment tracker
- A milestone drawdown and ad-hoc task manager with balance alerts
- A 12-month forward revenue horizon and forecast viewer
- A browser-native print generator for receipts and invoices
- A local-first application operating 100% inside your browser
- A standalone one-time purchase with zero recurring fees
It is not
- A double-entry general ledger or corporate tax platform
- An automated credit card payment gateway processor
- A live banking sync or bank feed synchronization service
- A multi-tenant cloud database that syncs across multiple team logins
- A subscription invoicing platform that charges per-invoice fees
Privacy by Architecture
Your billing records stay on your computer.
Billing Pulse adheres strictly to the MicroApps philosophy: practical software should be small, private, and durable. The entire utility runs locally in your web browser and stores its data inside private browser local storage.
No 35sites servers ever see your rates, client names, invoice totals, or payment logs. There are no tracking scripts and no monthly subscriptions. You maintain complete data sovereignty with native JSON import and export tools.
Storage Reminder: Local storage is tied to your active browser profile. Clearing your browser cache or site data will remove local records. Use the Export JSON Vault tool to create periodic backups and keep your financial records safe.
Take Control of Your Billing
Track client retainers with precision—without renting software.
Billing Pulse provides the structure, foresight, and clarity required to run client retainers and milestone billing professionally, keeping your sensitive financial records completely private.
Clear Expectations
What Billing Pulse is, and what it is not.
It is
- A private client billing, retainer, and payment tracker
- A milestone drawdown and ad-hoc task manager with balance alerts
- A 12-month forward revenue horizon and forecast viewer
- A browser-native print generator for receipts and invoices
- A local-first application operating 100% inside your browser
- A standalone one-time purchase with zero recurring fees
It is not
- A double-entry general ledger or corporate tax platform
- An automated credit card payment gateway processor
- A live banking sync or bank feed synchronization service
- A multi-tenant cloud database that syncs across multiple team logins
- A subscription invoicing platform that charges per-invoice fees
What You Receive
A focused digital tool you can start using right away.
- Billing Pulse: The complete microapp experience.
- Quick-start workflow: Clear instructions for using the tool immediately.
- Private-by-design use: Built for focused workflows without unnecessary complexity.
- Product updates: Updates to the purchased version when available.
Frequently Asked Questions
Before You Get Started
Do I need to install anything?
No. Each MicroApp is delivered as a standalone HTML file. Save the file to your computer and double-click to open it in any modern desktop web browser. There are zero servers to configure and no installers required.
Can I use the application offline?
Yes. Core functions—including creating records, managing templates, reviewing history, and generating reports—run client-side without an active network connection. Internet access is only needed to download updates or dispatch emails over your network.
Where is my data stored?
Your records reside exclusively in your browser's private local storage. Data never leaves your device and is never transmitted to servers or third-party cloud platforms.
Can I move my data to another computer or browser?
Yes. You can use the built-in Export JSON function to save a portable file containing your entire workspace. Open the MicroApp on your new computer or browser and click Import JSON to restore your records instantly.
How does email dispatch work?
By default, MicroApps use your operating system's native email client via standard mail links. The application prepares your message, addresses it, and opens it directly in your mail software for final review before sending.
Which web browsers are supported?
MicroApps are designed for modern desktop versions of Google Chrome, Apple Safari, Mozilla Firefox, Microsoft Edge, and Brave.
What happens when an update is released?
Application updates will be communicated to all buyers and are provided free of charge. Because your application data resides in your browser and is separate from the HTML file, simply export a JSON backup, download the latest version, and continue working.
Ready to get Billing Pulse ? Buy once and get lifetime access to this digital product.