Free and open first

Best Mobile App Development Platforms in 2026

37 apps
Research read 23 Oct 2026
How the order is worked out

1

MIT App Inventor

Free plan Open source AndroidAPIExtension+6

MIT App Inventor offers a free browser-based way to design and program mobile apps with blocks. Its main platform limit is that packaged apps can currently be built and installed only for Android.

8.9 Free plan Visit site
2

Felgo
by Felgo
Free plan AndroidAPIExtension+5

Felgo combines cross-platform app development, game tools, and device integrations in a Qt-based SDK. Review the annual turnover limits and billing terms for the license that fits your organization.

7.5 Free plan · paid from €79/mo (annual) Visit site
3

Ionic Framework

Free plan AndroidiPhoneWeb

Choose Ionic Framework if you want a free, MIT-licensed toolkit for building mobile and web apps with one codebase and web languages.

7.3 Free plan Visit site
4

Qt Creator

Free plan AndroidiPhoneLinux+3

Qt Creator covers editing, builds, testing, and debugging across several application targets.

7.2 Free plan · paid from €546/user/yr Visit site
5

Retool
by Retool
Free plan AndroidAPIiPhone+2

Retool brings app building, mobile capabilities, and workflow automation together around a business’s data. Check plan user limits, workflow allowances, and AI credit terms before choosing a tier.

7.2 Free plan · paid from $10/mo (annual) Visit site
6

Avalonia

Free plan AndroidiPhoneLinux+3

7.1 Free plan · paid from €299/user/yr Visit site
7

libGDX

Free plan AndroidExtensioniPhone+4

libGDX combines cross-platform game targets with graphics, audio, input, physics, and networking APIs.

7.1 Free plan Visit site
8

Solar2D
by Solar2D
Free plan AndroidiPhoneLinux+3

Choose Solar2D if you want a free, open-source Lua engine with mobile export, multiplayer tools and a wide range of listed targets.

7.1 Free plan Visit site
9

Tauri Bundler

Free plan AndroidiPhoneLinux+2

Tauri Bundler provides packaging routes across desktop and mobile platforms, with command-line and CI guidance.

7.1 Free plan Visit site
10

Unity

Free plan AndroidAPIiPhone+4

6.9 Free plan · paid from $210/mo Visit site
11

Xojo

Free plan AndroidiPhoneLinux+3

Xojo offers a shared development environment for desktop, web, and mobile targets, with a visual mobile layout editor and device access.

6.9 Free plan · paid from $499 Visit site
12

Compose Multiplatform

Free plan AndroidiPhoneLinux+3

6.6 Free plan Visit site
13

Delphi

Free plan Windows

6.5 Free plan · 30-day trial Visit site
14

Apache Cordova

Free plan AndroidiPhoneWeb

6.4 Free plan Visit site
15

Boden

Free plan LinuxMacWindows

6.4 Free plan Visit site
16

Capacitor

Free plan AndroidiPhoneWeb

6.4 Free plan Visit site
17

Dioxus

Free plan AndroidiPhoneLinux+3

6.4 Free plan Visit site
18

Expo Application Services

Free plan Web

Choose EAS if you need cloud services for Android and iOS builds, signing, and store submission.

6.4 Free plan · paid from $19/mo Visit site
19

Flutter
by Google
Free plan WebWindowsMac+3

6.4 Free plan Visit site
20

Kivy

Free plan AndroidiPhoneLinux+2

6.3 Free plan Visit site
21

Kotlin Multiplatform

Free plan AndroidiPhoneLinux+3

6.3 Free plan Visit site
22

Jetpack Compose

Free plan LinuxMacWindows

6.2 Free plan Visit site
23

Lynx

Free plan AndroidiPhoneMac+2

6.2 Free plan Visit site
24

OpenFL

Free plan AndroidiPhoneLinux+3

6.2 Free plan Visit site
25

Uno Platform

Free plan AndroidiPhoneLinux+3

6.2 Free plan · paid from $39/user/mo · 15-day trial Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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