Invision
Moqups
Balsamiq
Figma
Zeplin
Proto.io
UXpin
Marvel
SyncWhen
Doodle
When2Meet
Rallly
SyncWhen is a free scheduling poll tool built for speed. Create a poll with possible time slots in 30 seconds, share a link, and participants vote yes, maybe, or no on each slot. Results update in real time via WebSocket โ no page refresh needed.
Unlike older tools, SyncWhen requires no account from anyone (creator or voter), shows zero ads, and includes yes/maybe/no voting free โ features competitors paywall. It's built mobile-first and works in 12 languages: English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Turkish, Indonesian, Vietnamese, Arabic.
Recurring polls support weekly or monthly meetings with one shared link. Calendar export to Google, Apple, and Outlook via .ics file. ActionCable-powered live updates mean votes appear instantly as people respond.
Built for teams, study groups, families, and anyone coordinating time across a group without the back-and-forth of email or chat.
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SyncWhen's answer:
SyncWhen is the only free scheduling poll where both creators and voters skip signup, voting is true yes/maybe/no (not just yes/no), and results update live via WebSocket โ while staying completely ad-free. It also ships in 12 languages out of the box, including German, Arabic, and Vietnamese, which is rare in this category.
SyncWhen's answer:
Three reasons: (1) zero friction โ no one needs an account, not the organizer, not the participants; (2) real-time results โ votes appear instantly without page refresh; (3) it's genuinely free โ no ads, no paywalled features, no data sales. Competitors like Doodle lock yes/maybe/no voting, ad removal, and calendar sync behind $6.95+/month paywalls. SyncWhen includes all of it for free.
SyncWhen's answer:
Anyone coordinating time across a group without wanting the overhead of a meeting platform: small teams planning weekly syncs, study groups and classmates, families organizing get-togethers, hobbyists scheduling club meets, and educators running office hours. Mobile-first design means participants can vote from a phone in seconds, which is where most group-chat invites get opened.
SyncWhen's answer:
SyncWhen started as a reaction to how bloated scheduling polls had become. Doodle used to take 30 seconds โ now it's account creation, cookie banners, upsell modals, and ads. The premise: strip it back. One URL, three voting options, real-time results, no friction for anyone. Built as an indie product, 12 locales shipped at launch to reach users who don't get served by US-centric tools.
SyncWhen's answer:
Rails 8, Vue 3 (Composition API), PostgreSQL, ActionCable for real-time updates, Puma, Propshaft, Solid Queue / Solid Cable, Tailwind CSS v4. Deployed on a self-managed VPS with nginx + Let's Encrypt.
Based on our record, Invision seems to be more popular. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
InVision Invisionapp.com Prototyping and collaboration tool with a free plan for up to 3 projects. - Source: dev.to / over 1 year ago
Search for UI/Design/Firma Tutorials on YouTube, check out UI related Blog posts on invisionapp.com, check out UI Inspiration muzli. Source: over 3 years ago
We have 100s of different screens to migrate as well as a really large design system, and to date we've been successfully using the invisionapp.com website to keep things really well organized and easy to navigate with tags, pages, etc. We've enjoyed this system so far because it's easy for PMs and Devs to navigate in a website format, without having to learn the design software or get bogged down in artboards. Source: about 4 years ago
Other options: explain everything whiteboard, invisionapp.com. Source: almost 5 years ago
Moqups - The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
When2Meet - When2meet helps you find the best time for a group to get together. It is a free survey tool that is quick and easy to use.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Rallly - Find the best time to meet. Coordinate group meetings without the back-and-forth emails.
