Invoice Maker: Preparing Client Invoices on Your Phone

The job is finished and the client asks for the invoice before you leave. You can promise to send it from a laptop tonight, or you can build it on your phone now, while the details are still in front of both of you.

HELPERG’s invoicing app is listed as Invoice Maker - Easy creation on the App Store and Invoice Maker & Estimates on Google Play. HELPERG’s catalogue describes it as a way to “create and send invoices and estimates from a phone”. This guide covers what goes into an invoice in the app, a routine for checking it before it leaves your phone, and the things an invoice, however tidy, does not do.

What goes into an invoice

Both listings describe building “customized invoices” with a logo, business details, line items and tax, and branding them with your own colors, logo and notes. The App Store subtitle advertises “10+ Templates”; the Google Play listing advertises “20+ Templates”. The listings do not explain the difference, and the two figures need not conflict, since a set of 20 or more is also a set of 10 or more; check the templates on your own device rather than relying on either number.

Once an invoice is ready, the listings describe emailing or sharing it directly, or downloading it as a print-ready PDF. They also describe recurring invoices for repeat clients and the ability to “automatically generate clear, branded receipts after payments”.

Check it before it leaves your phone

An illustrative example. The business, the client and every figure are invented, and the 10% tax rate was chosen for easy arithmetic, not as the rate of any particular country; use the rate that applies to you.

A freelance photographer invoices a half-day shoot:

• Half-day shoot: 1 × 450.00 = 450.00
• Image editing: 12 images × 15.00 = 180.00
• Travel: 1 × 40.00 = 40.00
• Subtotal: 670.00
• Tax at an illustrative 10%: 67.00
• Total: 737.00

Before sending, read the invoice as the client will:

1. Identity. Your business name and details, and the client’s, spelled correctly.
2. Reference and dates. An invoice number you can find again, the issue date and the due date.
3. Lines and arithmetic. Each quantity times its rate, the subtotal, the tax line and the total. Check the arithmetic yourself rather than assuming it.
4. Tax. The rate and wording that apply to you. The app provides a tax field; it does not decide what your tax treatment is.
5. How to pay. Clear instructions the client can act on, in the notes if nowhere else.
6. The file itself. Open the exported PDF and check that nothing is cut off before you send it.

Estimates: named, not described

Estimates appear in the Google Play title, in the App Store subtitle and in the name of one App Store purchase, “Create Estimates & Invoice - Annual”, and the App Store version history records “new templates for invoices & estimates” in July 2025. Neither description explains how estimates work in the app, for example whether an accepted estimate can be turned into an invoice, and the App Store listing does not say whether estimates are available without that annual purchase. If quoting before you invoice is central to your work, check that workflow in the app before you rely on it.

What an invoice does not prove

An invoice is a request for payment. It is not proof that you were paid, and the app does not change that.

Neither listing describes accepting card payments, sending payment links, or connecting to a bank or a payment provider. The listings say the app can “automatically generate clear, branded receipts after payments”, but neither explains what triggers a receipt or describes a payment or bank connection through which the app could see a payment arrive, so treat a receipt as a record of a payment you have confirmed yourself. Both listings promise that you will “get paid faster”, but neither gives a figure or a method behind it, so read it as a marketing line.

The listings also make no claim that invoices meet any country’s invoicing or tax rules, such as required fields, numbering requirements or electronic-invoicing formats. The app’s terms of use are explicit: they say the company does not guarantee the app is “suitable for any particular purpose (e.g. accounting, tax filing)”, and that “you are solely responsible for verifying the accuracy and legal compliance of any invoices or data generated through the App”.

What Pro unlocks on the App Store

The App Store description says a Pro subscription unlocks the ability to “save unlimited invoices & clients” and access to “premium templates & features”, which suggests the free version limits how many invoices and clients you can keep, though the listing does not say what the limit is. On the US storefront the listing shows four purchases: Unlock PRO weekly at $6.99, monthly at $14.99 and yearly at $69.99, and “Create Estimates & Invoice - Annual” at $49.99.

The Google Play listing did not show an in-app purchase notice or prices when this guide was checked, and it does not describe a Pro tier.

Where your invoices live

The app’s privacy policy, published by hrhelperg s.r.o., says you do not need to register to use the app and that the company does not collect personally identifiable information such as your name or email. It describes collecting device and usage data, interaction data and a general location based on IP address, for purposes including analytics and evaluating marketing campaigns, and names Google Analytics, Appsflyer, RevenueCat and OneSignal as service providers. An appended section then lists twelve third parties the company “may use as part of the Services”, among them Google AdMob, Liftoff Mobile, OpenAI and Anthropic, and says they “may collect or process personal information”. Beyond RevenueCat and Appsflyer, which its own provider section also names, the policy does not say which of them this app uses.

What the policy does not say is where the client names, addresses and amounts you type into invoices are stored, and neither listing describes cloud backup or syncing between devices. Keep the exported PDFs somewhere you control, because they are your record of what you billed.

The store disclosures, which are the developer’s own declarations, do not match the policy or each other. The App Store label says usage data may be collected and may be used to track you across other companies’ apps and websites. The Google Play label says the app may share device or other IDs with third parties but also declares “No data collected”, although the policy lists data it may collect automatically; it states “Data can’t be deleted”, although the policy says EU residents can ask for deletion by email; and it states “Data isn’t encrypted”, which Google Play explains as data not being transferred over a secure connection.

Invoice Maker or Cash Workspace?

HELPERG also runs Cash Workspace, a web workspace covered in our guide to Cash Workspace. Its invoices page describes tracking invoice records by status, direction and fiscal year, each linked to its document. Whether it also produces the invoice document is something its own pages disagree on: the invoices page says generating branded invoice PDFs inside the workspace “is on the roadmap”, while its pricing page lists “invoices with PDF and QR/payment details” among the features available now. HELPERG’s catalogue lists Invoice Maker as a mobile app for creating and sending invoices from a phone, and Cash Workspace as a web platform.

Nothing in the pages checked for this guide describes moving data between them, so do not expect them to sync. Cash Workspace’s invoices page does say it supports attaching an invoice PDF generated elsewhere, so a PDF exported from Invoice Maker can be filed there by hand.

Listing details

The App Store lists the app for iPhone and iPad, requiring iOS 13.0 or later (iPadOS 13.0 on iPad), with HRHELPERG LLC as developer and hrhelperg s.r.o. as seller; it showed version 4.2.2, dated 2 December 2025, as the latest when this guide was checked. Google Play lists hrhelperg s.r.o. as developer and showed a last update of 19 May 2026.