Dev tools · alternatives · 2026

24 alternatives to Protein

Sync #UI #design and its #source code in the background

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Protein launched in 2015; newer entries below may have overtaken it.

1
Frame.io for iOS▲140
Real-time video collaboration, now with a native iOS app
2016 · frame.io · its alternatives →
2
Framer Cloud▲218
A modern design workflow
2016 · its alternatives →
3
Frame.io▲151
Cloud-based collaboration for everything
2015 · frame.io · its alternatives →
4
UI Sources▲418
Curated interaction design patterns from the best apps
2018 · screensdesign.com · its alternatives →
5
iOS Stack▲213
A curated collection of iOS resources for app builders
2016 · iosstack.com · its alternatives →
6
Craft Sync for Sketch and Photoshop▲91
Sync with 1 click from your native design environement
2016 · its alternatives →
7
Blocs▲165
Mac web design app
2014 · blocsapp.com · its alternatives →
8
Paste by FiftyThree for iOS▲336
Collaborative decks for creative teams
2017 · its alternatives →
9
Desktop Fruit▲140
Curated Mac application designs
2016 · its alternatives →
10
Source iOS▲278
The best git client and code editor for iOS.
2017 · its alternatives →
11
Working Copy 3▲111
The powerful Git client for iOS
2017 · workingcopyapp.com · its alternatives →
12
Ensembles▲66
Objective-C synchronization framework for apps
2016 · ensembles.io · its alternatives →
13
NotesHub: cross-platform, Markdown-based note-taking app▲147
Thank you for your comments, just some context: - The app is available for iOS, Android, Windows, Mac, Apple Vision Pro, and the Web. - The Web version is implemented as a Progressive Web Application that is very responsive, local first, offline first, can be installed, and is entirely free to use. - Native (hybrid) versions do not require subscription fees and have small one-time payment. - You can store your notes in Git using any Git provider such as GitHub, GitLab, or Bitbucket. However, it has the best built-in integration with GitHub. Self-hosted scenarios like Gitea are also…
2024 · about.noteshub.app · its alternatives →
14
Proto.io 6▲175
Design, prototype, collaborate, test. Prototyping for all.
2016 · proto.io · its alternatives →
15
iOSStash▲198
A huge collection of app-related tools
2016 · its alternatives →
16
Form▲203
Interaction & prototyping design tool for iOS apps
2014 · m3.material.io · its alternatives →
17M2
Muse 2.0 with local-first sync▲178
Hey HN, I want to share with you something I and my four colleagues have been working on for the last several years. It’s a whiteboarding and notes tool called Muse[1]. We just released a 2.0 version which includes local-first sync. A little backstory: I’m one of the authors of the 2019 essay Local-first software[2]. (Past HN discussions[3][4].) The thesis is to reclaim some of the ownership over our data that we’ve lost in the transition from filesystems to cloud/SaaS. So I’m excited to bring CRDT technology “out of the lab” and into a commercial product as a chance to prove the value…
2022 · museapp.com · its alternatives →
18
Framer Flows▲187
App design made simple.
2016 · its alternatives →
19
Mosaic▲161
The app for ideas
2015 · baronfig.com · its alternatives →
20
Synclet▲70
An Android IDE running in your browser
2020 · synclet.com · its alternatives →
21
Docket▲114
Like Jira but for indie devs and AI agents
Mar 2026 · drobinin.com · its alternatives →
22
Fuse▲188
A UX tool suite for mobile app designers and developers
2015 · fuse.no · its alternatives →
23
Framer Studio: Code Highlighting▲121
A new way to inspect and navigate your prototyping code
2015 · its alternatives →
24
Syncano▲80
Scalable backend to build complex apps with frontend code.
2015 · syncano.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →