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Tendenci VS SyncWhen

Compare Tendenci VS SyncWhen and see what are their differences

Spatius
Next-generation real-time digital avatar infrastructure | Affordable, Accessible, Alive sponsored
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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Tendenci logo Tendenci

Tendenci - The Open Source AMS is a cloud-basedโ€‹ all-in-one management SaaS solution for Non-profits and Associations.

SyncWhen logo SyncWhen

Find the best time to meet. No signup, no ads, no clutter.
  • Tendenci Landing page
    Landing page //
    2018-09-29

You have lots of options when choosing MMS or AMS. From Wild Apricot to Member Clicks, or Personify - all viable options. But if you need to scale to hundreds of thousands of members, have recurring memberships, organizational memberships and need full features of seasoned large scale enterprise AMS, itโ€™s possible you might hit some limits with new kids on the block. Proprietary vendors are companies first and communities second. Tendenci is community first, and yes, there is a small company behind it. Itโ€™s just grown far bigger than we were expecting, and given it started in 2001, when you switch from proprietary solution it's an upgrade!

Feel free to take the demo site for a spin! Every site looks completely unique using Bootstrap themes. No long term contracts. Access to all of YOUR data at any time. Full access to source code. Everything under YOUR domain name. With Tendenci, you can self-host, host with us, leave whenever you want. If Tendenci isnโ€™t the right AMS to manage YOUR memberships, you are free of constraints!

Let's talk! Give us a call at (281)497-6567 Contact Us Now at www.tendenci.com/contact Free Demo https://demo.tendenci.com

  • SyncWhen Main page
    Main page //
    2026-04-21
  • SyncWhen Vote page
    Vote page //
    2026-04-21
  • SyncWhen Result page
    Result page //
    2026-04-21
  • SyncWhen FAQ
    FAQ //
    2026-04-21

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.

Tendenci features and specs

  • Event Management
  • Member Management
  • Cloud-based
  • Global Markets
  • Content Management
  • Photos
  • Video Sharing
  • Newsletters
  • News module
  • Articles
  • Job Boards
  • Directory
  • Customizable
  • AMS / CRM Integrations
  • Languages

SyncWhen features and specs

  • Price
    Free โ€” unlimited polls, no signup, ad-free. No credit card required.
  • Account required
    No โ€” voters and creators can use without signup
  • Voting options
    Yes, Maybe, No (three-way voting)
  • Real-time updates
    Yes โ€” results update live via WebSocket, no refresh needed
  • Recurring polls
    Yes โ€” weekly/monthly cadence, one shared link for all rounds
  • Languages
    12 (EN, DE, FR, ES, IT, PT, NL, PL, TR, ID, VI, AR)
  • Mobile support
    Mobile-first design, PWA installable
  • Calendar export
    .ics file (Google, Apple, Outlook compatible)
  • Ads
    None
  • Tracking
    None โ€” no third-party analytics or data sale
  • Anonymous voting
    Yes โ€” participants vote with just a display name
  • Poll sharing
    Via unique URL, no friction
  • Platforms
    Web (any modern browser, desktop & mobile)
  • Calendar deep-links
    Google Calendar + Apple Calendar (.ics), Outlook in progress

Analysis of Tendenci

Overall verdict

  • Overall, Tendenci is considered a good option, especially for non-profits and associations looking for a customizable and comprehensive management solution. It is particularly valued for its adaptability and the freedom it provides being open-source.

Why this product is good

  • Tendenci is often praised for its open-source nature, flexibility, and strong feature set tailored towards non-profits and associations. It offers functionalities like membership management, event management, and content management, which are beneficial for organizations that need to manage a large number of stakeholders. The platform's scalability and community support are also notable positives.

Recommended for

  • Non-profit organizations
  • Membership-based associations
  • Educational institutions
  • Professional societies
  • Organizations seeking open-source solutions

Analysis of SyncWhen

Overall verdict

  • I don't have verified, up-to-date information about SyncWhen (syncwhen.com) to make a confident assessment of its quality. Based on the name, it appears to be a scheduling or time-zone coordination tool, but I cannot confirm details about its features, pricing, reliability, or user reception.

Why this product is good

  • Unable to verify specific features or capabilities of this product
  • No confirmed user reviews or ratings available in my knowledge
  • Cannot confirm pricing, support quality, or business legitimacy
  • Recommend checking recent reviews on sites like G2, Trustpilot, or Reddit, and testing any free trial before committing

Recommended for

  • Users should independently research current reviews and try the product firsthand
  • Best to verify through the official website, customer support, and third-party review platforms before making a decision

Tendenci videos

+ Add

Tendenci Membership Management Software Introduction

More videos:

  • Demo - Tendenci Features Demo
  • Review - Tendenci Open Source CMS for Nonprofits and Associations

SyncWhen videos

No SyncWhen videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Tendenci and SyncWhen)

Tendenci

SyncWhen

Membership Management
100 100%
Membership Management
0% 0
Meeting Tools
0 0%
Meeting Tools
100% 100
Association Management Software
100 100%
Association Management Software
0% 0
Productivity
0 0%
Productivity
100% 100

Questions & Answers

As answered by people managing Tendenci and SyncWhen.

What makes your product unique?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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.

What's the story behind your product?

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.

Which are the primary technologies used for building your product?

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.

User comments

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What are some alternatives?

When comparing Tendenci and SyncWhen, you can also consider the following products

Kajabi - Kajabi is the only Knowledge Commerce platform today with everything you need to market, sell, and deliver your knowledge online.

Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.

WildApricot - WildApricot is a powerful cloud software to help you automate and simplify membership tasks.

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.

ChamberMaster - ChamberMaster is a member management software.

Rallly - Find the best time to meet. Coordinate group meetings without the back-and-forth emails.

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