Freebie Invoice Estimate Maker icon
FreeMaker - Invoice Maker icon

Simple Apps s.r.o.

For small business owners, contractors, and freelancers requiring professional billing solutions outside of a traditional office setting.

2apps4.8(9.5K)BusinessFinance

Snapshot

Who is Simple Apps s.r.o.?

Providing small business owners and freelancers with mobile-first tools to manage professional invoicing and billing on the go.

Target audience

Small business ownersContractorsFreelancers requiring professional billing solutions outside of a traditional office setting

Active nemesis

Labhouse Mobile

Other rivals

Portfolio

Free 2
2
apps
Business1
Finance1

Last updated

Freebie Invoice Estimate Maker

v26.7.10

4mo ago

Steady

Publisher DNA

What defines Simple Apps s.r.o.?

Publisher DNA

Primary focus

Mobile-first invoicing and financial utilities

Scale

indie

Target audience

Small business owners, contractors, and freelancers requiring professional billing solutions outside of a traditional office setting.

Signature Patterns

  • •Focus on mobile-first administrative workflows for the gig economy
  • •Tiered subscription monetization model with a low-volume free entry point
  • •Extensive localization across multiple languages and regional English dialects
  • •Integration of on-device utility features like client signatures and PDF generation
Steady

Portfolio momentum

Actively maintaining their flagship title with 3 updates in the last 6 months and a major release within the last 30 days.

Last release 28d agoActive apps 1

Portfolio

What does Simple Apps s.r.o. ship?

Apps

2 apps analysed

Freebie Invoice Estimate Maker icon
Freebie Invoice Estimate Maker

Make invoices & estimates on the go. Simple professional Invoice & Estimate App

4.8(6.2K)

Analysis in progress

Visual customization library reduces switching costs

  • The simple and intuitive interface allows small business owners to generate professional invoices quickly
  • The lack of landscape orientation support on tablets hinders productivity for users with attached keyboards

Distributed across 6 markets, strongest in Europe.

Based on 1 of 2 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (2)

  • Mexico1 / 1
  • United States1 / 1

Europe (3)

  • France1 / 1
  • Germany1 / 1
  • Spain1 / 1

Asia-Pacific (1)

  • Australia1 / 1

Core markets (1/1 apps)

AustraliaFranceGermanyMexicoSpainUnited States

User Sentiment

How do users feel about their apps?

1

Positive apps

0

Neutral / mixed

0

Negative apps

85/100

Avg sentiment score

Rivals

Who does Simple Apps s.r.o. compete with?

The rivals identified

Nemeses(1)

Labhouse Mobile

known forInvoice Maker - Invoice Fly

2 apps4.8Finance

Both apps target independent contractors and small business owners with mobile-first invoicing, creating direct competition for the same professional user base.

Contenders(5)

Easy Expense Tracker

known forInvoice Maker by Easy Expense

1 app4.8Finance

Both apps target freelancers and small business owners with mobile-first invoicing, creating direct competition for the same user base.

FreshBooks

known forInvoice Creator by FreshBooks

1 app4.8Finance

Both apps target freelancers and small business owners with mobile-first invoicing, creating direct competition for users seeking efficient document generation.

HYPERLINK INFOSYSTEM

known forInvoice Create & Receipt Maker

1 app4.8Finance

Both apps target freelancers and small business owners with mobile-first invoice generation, competing directly for users seeking simple, template-based billing solutions.

Raf Tadevosyan

known forktak: Simple Invoice Maker

1 app0.0Finance

Both apps target freelancers and small business owners with offline-first invoicing tools, creating direct competition for users prioritizing data privacy and local document management.

Supernova

known forInvoice Maker for Contractors

1 app4.8Finance

Both apps target independent contractors and freelancers with mobile-first invoicing, creating direct competition for the same user base.

Same space(19)

Billchat

known forEstimate Maker for Contractors

1 app4.9Finance

Targets the same contractor demographic with a focus on mobile-based estimate tracking and contact list integration.

Block

known forSquare Invoices: Invoice Maker

1 app4.8Finance

Anchors users into the Block payment ecosystem with a zero-fee invoicing model, though it struggles with technical stability.

Bookipi Pty

known forInvoice Bee Estimate Maker 2Go

1 app4.8Finance

Provides a cross-platform billing solution that includes digital signature capture for client-facing documentation.

CREATIVE TECHNOLOGIES

known forDueBy - Invoice Maker

1 app4.9Finance

Focuses on efficiency for freelancers by providing financial reporting breakdowns and multi-currency support.

Dynamic Falcon

known forInvoice Maker・Estimate App

1 app4.9Finance

Positions itself as a fast, clean billing tool for tradespeople who explicitly do not require full accounting software.

Erik Hudak

known forFreebie Estimate Maker App

1 app4.9Finance

Functions as a simple, mobile-first estimate tool for contractors who need to keep all financial documentation in one place.

FreeAgent Central

known forFreeAgent Mobile Accounting

1 app4.5Finance

Integrates accounting and expense management with intelligent business insights to assist freelancers with cash flow.

GetPaid

known forInvoice Maker ▸ Estimate App

1 app4.8Finance

Addresses the same freelancer demographic by allowing visual documentation attachments to invoices, which aids project clarity.

Gulooloo Tech

known forInvoice Maker App -InvoiceBase

1 app4.9Finance

Offers a similar mobile-first invoicing solution for self-employed individuals, focusing on customizable templates and payment status tracking.

iCubemedia

known forInvoice Manager ▸Smart Invoice

1 app4.7Finance

Attempts to replace multiple business applications by consolidating invoicing and accounting into a single tool with offline capabilities.

Invoice Generator s.r.o.

known forEasy Invoice Maker App

1 app4.9Finance

Targets the same small business audience with a similar mobile-first billing workflow, but integrates automated tax calculations directly into the document creation process.

Invoice Maker Pro s.r.o.

known forFreebie Invoice Maker

1 app4.8Finance

Serves the same freelancer segment with a focus on rapid payment collection via integrated online processing.

Invoice2go.com

known forInvoice2go: Easy Invoice Maker

1 app4.9Finance

Operates as a mature, global financial suite that competes for the same professional user base but faces churn due to opaque security policies.

Protection & Security App

known forSelf Employed - Accounting

1 app4.2Finance

Expands beyond simple invoicing to include tax-specific features like mileage tracking for independent contractors.

Tausif Akram

known forInvoice Maker: Simple Invoice

1 app4.7Finance

Serves as a general-purpose invoice management tool for entrepreneurs who want to avoid manual paper-based billing.

VADOSWARE

known forInvoice Generator & Creator

1 app4.8Finance

Targets the same mobile-first billing audience with a focus on quick estimate-to-invoice conversion.

Vladimir Pronin

known forInvoice

1 app4.7Finance

Markets itself as a direct alternative to established incumbents for small business owners needing immediate mobile billing.

Zenvoice

known forInvoice Simple: Invoice Maker

1 app4.8Finance

Coexists as a high-volume alternative for freelancers, though it faces user friction regarding payment processing fees and data field requirements.

Zoho

known forZoho Invoice Maker App

2 apps4.9Finance

Provides a zero-cost alternative for freelancers that uses a customer portal to create switching costs for recurring client relationships.

New entrants(1)

Rigal Tech

known forEstimateBook: Estimate Maker

1 app0.0Finance

Appeals to trade professionals through a voice-first generation mechanism that prioritizes local data privacy over cloud connectivity.

The Analyst's Read

The bottom line on Simple Apps s.r.o.

Bottom line

Simple Apps s.r.o. is a disciplined indie publisher that has successfully captured a high-intent user base through a single, highly-rated financial utility. Their focus on localization and mobile-native features positions them as a strong niche alternative to broader, desktop-centric accounting suites.

Frequently asked questions

How many apps does Simple Apps s.r.o. publish?
Simple Apps s.r.o. has 2 apps tracked by Marlvel, primarily in the Business category.
What kind of apps does Simple Apps s.r.o. make?
Simple Apps s.r.o.'s portfolio is concentrated in Business and Finance, with an average rating of 4.8/5 across rated apps.
What is Simple Apps s.r.o.'s top app?
By review volume across the portfolio, Freebie Invoice Estimate Maker is Simple Apps s.r.o.'s best-known app tracked by Marlvel.
In how many countries are Simple Apps s.r.o.'s apps available?
Marlvel has tracked Simple Apps s.r.o.'s apps across 6 countries.

What fed this analysis

Apps analyzed:
1
With full intel:
1
With overview:
1
Website scraped:
yes
Social presence:
yes

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Simple Apps s.r.o., its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Simple Apps s.r.o. intelligence.” Updated 2026-04-28. https://marlvel.ai/publishers/simple-apps-s-r-o

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Data licensed under CC-BY-NC 4.0