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

Bookipi Pty

Other rivals

Portfolio

Free 2
2
apps
Business1
Finance1

Last updated

Freebie Invoice Estimate Maker

v26.7.10

3mo 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)

Bookipi Pty

known forInvoice Maker & Estimate App

1 app4.6Finance

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

Contenders(3)

HYPERLINK INFOSYSTEM

known forInvoice Create & Receipt Maker

1 app4.8Finance

Both apps target the same user base of freelancers and small business owners seeking mobile-first document generation, with both utilizing a free-to-download model for invoice creation.

Labhouse Mobile

known forInvoice Maker - Invoice Fly

2 apps4.8Finance

Both apps target small business owners and freelancers with mobile-first invoicing, competing directly for the same professional user base through subscription-based document generation.

Supernova

known forInvoice Maker for Contractors

1 app4.8Finance

Both apps target the same independent contractor and freelancer demographic for mobile-based invoice generation. They compete directly on the utility of creating professional billing documents while on the move.

Same space(20)

Billchat

known forEstimate Maker for Contractors

1 app4.9Finance

Focuses on estimate tracking and automatic tax calculations for field-based contractors.

Dynamic Falcon

known forInvoice Maker・Estimate App

1 app4.9Finance

Simplifies the conversion of estimates into invoices for small business owners.

Eli Bitton

known forInvoice Maker + AI & Stripe

1 app4.8Finance

Uses AI-assisted generation and Stripe integration to reduce friction for self-employed users.

Erik Hudak

known forFreebie Estimate Maker App

1 app4.9Finance

Provides a simple interface for mobile estimate creation targeting freelancers and contractors.

GetPaid

known forInvoice Maker Tofu & Receipts

1 app4.7Finance

Automates tax processing and financial documentation for small businesses and freelancers.

Green & Red

known forInvoice Maker・Estimate App

1 app4.6Finance

Targets contractors needing a free-to-download solution for basic accounting and invoice management.

Igor Bidenko

known forInvoice Maker: AI PDF Billing

1 app0.0Finance

Focuses on speed by allowing invoice generation without sign-up or bookkeeping setup.

Invoice Generator s.r.o.

known forEasy Invoice Maker App

1 app4.9Finance

Integrates contact lists and automated tax calculations directly into the billing cycle for small business owners.

Invoice Maker Pro s.r.o.

known forFreebie Invoice Maker

1 app4.8Finance

Facilitates payment collection through integrated online processing for contractors and growing businesses.

Invoice2go.com

known forInvoice2go: Easy Invoice Maker

1 app4.9Finance

Combines payment processing and expense tracking into a single interface for contractors and consultants.

Kashoo

known forTrulySmall Business Invoices

1 appFinance

Provides a fast, mobile-first invoicing tool for consultants and designers.

Miguel Munoz

known forQI - Invoice & estimate maker

1 app4.6Finance

Tracks work hours for hourly billing alongside standard invoice generation.

Muhammed Asaad Nadeem

known forIR Simple Invoice Maker

1 app0.0Finance

Uses AI to automate invoice generation and reduce manual paperwork for business owners.

Protection & Security App

known forSelf Employed - Accounting

1 app4.2Finance

Adds automated mileage tracking to standard invoicing for freelancers requiring tax compliance.

Pylonex Labs

known forInvoice Maker: Easy Billing

1 app0.0Finance

Provides a portable billing and expense tracking utility for mobile-reliant professionals.

Rija Iqbal

known forInvoice Maker: Easy Bill

1 app0.0Finance

Supports multi-business profile management for agency-tier users.

SVG Apps

known forInvoice & Estimate Maker

1 app4.8Finance

Operates offline, allowing users to invoice without an active internet connection.

Zenvoice

known forInvoice Simple: Invoice Maker

1 app4.8Finance

Offers high-volume mobile billing with over 167,000 ratings, indicating significant market penetration.

Zoho

known forInvoice Generator - Zoho

1 app4.8Finance

Leverages the Zoho ecosystem to provide an ad-free experience for entry-level freelancers.

ZTABS (PRIVATE)

known forInvoice Maker - Billed

1 app1.8Finance

Offers built-in timers and expense tracking for hourly consultants.

New entrants(2)

BitCraft Digital

known forInvoice Maker .

1 app5.0Finance

Adds a PDF toolkit including document scanning for field-based contractors.

Eatty AI

known forPayo: Invoice & Estimate Maker

1 app0.0Finance

Enables quick document generation for freelancers needing clean business documents on the go.

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