Mobile app studio · 3M+ downloads since 2010

Mobile apps that ship, sell and keep running.

Jigsaw Lab designs, builds and launches iOS, Android and Flutter apps, with the web and backend behind them. We run our own apps in the stores, so we know what it takes to get one live and keep it there.

2010

On the App Store since December 2010

500K+

Google Play downloads of Daily Sales Record

4.7★

Daily Sales Record on the App Store, 1,079 ratings

3M+

Downloads across our apps

Services

What we build

One team from first sketch to store launch. Pick one service or all of them.

iOS apps

iPhone and iPad apps built to App Store guidelines from day one: subscriptions, privacy labels and review-ready builds.

Android apps

Apps for the phones people actually use, from flagships to low-end handsets. Play Billing, data-safety forms and staged rollouts included.

Flutter cross-platform

One codebase for iOS and Android when speed and budget matter. We ship our own games and tools on Flutter.

Web & dashboards

Admin panels, customer portals and web versions of your app, running on the same data as the mobile apps.

Backend & APIs

Accounts, payments, notifications and storage, built simple and kept secure. Hosted wherever you want it.

Launch & growth

Store listings, screenshots, keyword research and review replies, so people can find your app once it is live.

Not sure what you need? Tell us the problem. We'll suggest the smallest app that solves it.

Our apps

Apps we've built and still run

These are our own products, live in the stores. We keep them updated, answer their reviews and run their subscriptions. That's the experience we bring to your project.

Case study · Daily Sales Record

A sales app for small shops, built and run since 2011

The problem

Small shops, market stalls and home businesses often keep their sales in a notebook or a spreadsheet. Stock runs out without warning, customer debts get forgotten, and at the end of the month nobody is sure what was really earned.

Most accounting tools are built for accountants, not for the person behind the counter.

What we built

One simple app. Record a sale in a few taps and see the profit straight away. Keep stock and customer dues up to date, and export daily, weekly and monthly reports to PDF, Excel or text.

Invoices, several shops and sales representatives are there when the business grows.

How it's built

  • iOS: a native Swift app for iPhone and iPad (iOS 15.6 and up), which also runs on Apple silicon Macs.
  • Android: a native app for Android 10 and up.
  • Shared web core: sales, stock and reports come from a PHP and MySQL back end that both apps use. A browser edition is available too.
  • Subscriptions: a free plan, plus optional Pro through App Store and Google Play billing (monthly, 3-month, 6-month, yearly or lifetime).
  • Notifications and monitoring: push messages, crash reports and remote settings through Firebase.
  • Languages: 51 on the App Store, English plus 50 more.

Results, from public store pages

500K+

Downloads on Google Play

15 years

On the App Store, since February 2011

4.5★

Google Play, from 4,294 ratings

4.7★

US App Store, from 1,079 ratings

5,000+

Ratings across the two stores

51

Languages on the App Store

We ship updates regularly (version 12.0.10 reached the App Store on 25 October 2026) and run its subscriptions and customer support. Figures checked on 3 November 2026; the App Store does not publish download counts.

See the product site for Daily Sales Record
App On The Go icon

App On The Go

Drop an .ipa, .apk or .aab and get a one-tap install link for your testers.

Web tool · apponthego.com

Kidos icon

Kidos: Safe Search on the App Store

A child-friendly search engine and browser: safe search always on, ads blocked, parent PIN and time limits. On the App Store since 2019.

4.0★ · 1,619 ratings

Medical Dictionary icon

Medical Dictionary on the App Store

Offline Arabic–English medical dictionary with 130,000+ terms, for doctors, nurses and students. On the App Store since 2016.

4.3★ · 659 ratings

Hindi Dictionary icon

Hindi Dictionary on the App Store

Offline Hindi–English dictionary with phonetic search, so you can type in Roman letters or Hindi. On the App Store since 2013.

4.6★ · 78 ratings

Ratings are from the US App Store, as of 2 November 2026.

Process

How a project starts, and what happens next

From your first email to a live app, in eight steps. Timelines are indicative; your proposal gives the real dates for your project.

  1. 01

    Inquiry

    Email us a few lines: what the app does, who it's for, and when you'd like it live.

    Day 0

  2. 02

    Our reply

    A reply from a person on the team, with questions or a time for a call.

    Within 2 working days

  3. 03

    Discovery call

    A 30 to 45 minute call. We map the problem, the users, the must-haves and what can wait.

    Usually the same week

  4. 04

    Proposal & estimate

    A written scope, a price and a timeline. Nothing starts until you approve it.

    3 to 5 working days after the call

  5. 05

    Design

    Every screen, onboarding step and paywall designed and reviewed with you before code.

    1 to 3 weeks

  6. 06

    Build & test

    Weekly builds you can install and test. Real-device and store-sandbox testing, including purchases, before anything is submitted.

    4 to 12 weeks for a first version

  7. 07

    Launch

    Store listings, privacy forms and submission to the App Store and Google Play.

    About 1 week, plus store review time

  8. 08

    Support

    Updates for new OS versions, bug fixes, review replies and store optimisation, on a monthly plan or as needed.

    Ongoing

Stack

Tools we use every day

We pick the simplest stack that fits your product and hand over clean, documented code.

Mobile

  • Flutter
  • Dart
  • iOS / StoreKit
  • Android / Play Billing

Web & backend

  • PHP
  • MySQL
  • Docker
  • REST APIs

Cloud

  • Firebase
  • AWS
  • Cloudflare
  • AdMob

Release

  • App Store Connect
  • Play Console
  • TestFlight
  • Closed testing

About

Small team. Long track record.

Jigsaw Lab has been publishing apps since 2010. Our apps have been downloaded more than 3 million times. We're a small team of developers and designers who build apps with care and solve real, everyday problems. If we can save you one second a day, we'll probably build it.

Because we publish our own apps, we know the whole path: building, store review, subscriptions, support and growth. You work directly with the people writing your code.

Jigsaw Lab LLC · Nevada, USA

Tell us what you want to build.

Send a short note: what the app does, who it's for, and when you'd like it live. We reply within 2 working days.

[email protected]

Email us a few lines and we will take it from there.

Email [email protected]