Best is subjective, but Adobe Comp is pretty good on both high and low fidelity mock ups. I really like how you can draw out common ui wireframe elements (such an x inside a box) and it will create a clean element for you that you can edit and resize.

However, if you want to steer away from Adobe (or just try out others to see which works best for you) I’d also recommend Marvel - design and prototype. I’ve used it the most.

Welcome to UI Design. This sub's goal is to create a place for discussion surrounding UI Design.

There is no self-promotion allowed in this sub. This includes posting URLs of any kind that is intended for self-promotion purposes.

Constructive design criticism is encouraged, and hate and personal attacks are not tolerated. Remember, downvoting is not critiquing.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

Proto.io, Balsamiq, Webflow, Marvel are some prototyping tools that you can use to develop mobile apps.

Figma and Adobe XD are both great and have many free resources.

Actually, you can also use slides (ex. google presentations). It will still a valid prototype, but with less interaction. You can add more explanation text though.

If you're trying to do a more "useful" prototype, you can try Flutter or Svelte. They are both directed for production already (Flutter specially for mobile apps and Svelte for websites). They both are too fast and allow you to launch and try without much burden.

I'm creating a prototype in Flutter and its taking almost 4 months already... But this is because I'm creating a kind of simulator and the simulation logic is getting me mad lol. Flutter itself is helping as much as possible.

​

Please ignore what you don't understand :/. My English is rusty.

Figma

Figma

Figma!

You can use mockframe, It is a no-code tool that is extremely easy to use through the drag and drop feature. They also provide ready to use templates and Collaborate with your team through real-time updates.

Take a look at Adobe XD. I am using it for my app and it is fantastic.

Figma is better, has more features and better plugins definitely worth a look.

Does it seem like AdobeXD is going to overtake Sketch?

Thanks for the help!!

Adobe XD and Figma are really good, free tools. Personally I prefer Adobe XD for my own projects.

Sketch is also highly popular, but it's paid, and I have never tried it out myself, so I can't say for sure. Also, it's Mac-exclusive. It is, however, very reputable, so if it's in your budget, I think you should check it out as well.

ProtoPie, Origami, actual code.

Figma is godawful for anything beyond simple flows. Everything is simplified and none of it really delves into how things actually work. No logic, no separate timelines, etc. Always an amateurish touch to them.

Figma

Figma

AxureRP

For high-fidelity prototypes and micro-interactions, well-known product design companies commonly use tools like Figma (with its robust prototyping features and components), Adobe XD (good for detailed animations and transitions), and Framer (powerful for code-based interactions and realistic prototypes). Principle is also popular for creating animated UI elements and micro-interactions.

Some companies even use code-based solutions like React or Swift for extremely realistic prototypes, especially when testing performance or specific device features. The best tool often depends on the specific needs of the project and the team's skillset.

Marvel

Figma

I use GIMP to touch up art.

Inkscape to make templates, icons, boards and sometimes cards.

Multideck to use the above with a spreadsheet to make large decks of cards.

Then Scribus to make rulebooks (and sometimes cards).

Screentop.gg has been really cool in terms of making my online prototype.

Dextrous pairs really nicely with TTS, Screentop or PlayingCards.io

Check out proto.io

Axure Rp

Moqups?

Axure. But you have to commit to learning it. But it's completely worth it.

If you already have experience with Figma, why not just use that?

Figma. It has an iOS styling toolkit.