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Radius.to VS Optim API

Compare Radius.to VS Optim API and see what are their differences

Eventtia
Event management software that runs the full lifecycle on one platform: branded event pages, registration and ticketing, email, SMS and WhatsApp campaigns, on-site check-in and badging, B2B matchmaking, a mobile app, and cross-event analytics. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.
Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

Radius.to logo Radius.to

Build real-world communities and find things happening around you. A Meetup and Eventbrite alternative.

Optim API logo Optim API

Optim API offers a transport optimization service.
  • Radius.to Radius
    Radius //
    2026-08-24
  • Radius.to Radius - Landing Page
    Radius - Landing Page //
    2026-08-24
  • Radius.to Radius - Event Page
    Radius - Event Page //
    2026-08-24
  • Radius.to Radius - Group Page
    Radius - Group Page //
    2026-08-24
  • Radius.to Group Search
    Group Search //
    2026-08-24
  • Radius.to Event Details
    Event Details //
    2026-08-24
  • Radius.to Activity feed
    Activity feed //
    2026-08-24
  • Radius.to User dashboard
    User dashboard //
    2026-08-24
  • Radius.to Group map
    Group map //
    2026-08-24

Radius is a free, modern alternative to Meetup and Eventbrite. Create groups, host events, and find communities nearby โ€” no ads, no algorithms, no organiser fee for groups up to 50 members.

  • Beautiful group and event pages, set up in minutes
  • RSVPs, waitlists, recurring events, and guest checkout (no account needed)
  • Discussions, messaging, calendar feeds, and member exports
  • Search and map discovery, plus automatic listing on Google Events
  • Joining and attending is always free. 500+ communities, 3,000+ events, 120+ cities.
Not present

Radius.to

Website
radius.to
Pricing URL
Official Radius.to Pricing
$ Details
freemium
Release Date
2024 January
Startup details
Country
United Kingdom
Employees
1 - 9
Edit details

Optim API

Website
optim.freterium.com
Pricing URL
-
$ Details
-
Release Date
-
Categories -
Edit details

Radius.to features and specs

  • Event API
    Create events in your group via our free API
  • RSVP
    Allow users to RSVP to events
  • User accounts
    Create your profile, join groups, and RSVP to events.
  • Discoverability
    Be found more easily, and find groups which interest you.
  • Quick event creation
    Quick create - copy metadata from previous events
  • Event status & visibility
    Make use of flexible event modes like draft and unlisted.
  • Group invitations
    Easily migrate from other platforms by mass inviting users.
  • Export data
    Export emails of event attendees and group members, or a full data export of your group
  • External tickets
    Add a ticket button to your event if you want to add external ticketing
  • Event attendance limits
    Automatically shut off RSVPs.
  • Private groups
    Private Groups for organizers on Pro
  • Group theme
    Change your group and event page colours
  • Related groups
    Link related groups and form a network to allow your group to be found by others more easily

Optim API features and specs

No features have been listed yet.

Analysis of Radius.to

Overall verdict

  • Radius.to is a URL shortening and link management service that offers basic functionality for creating shortened links, though it lacks the advanced features and brand recognition of major competitors like Bitly.

Why this product is good

  • Provides simple, straightforward URL shortening functionality
  • Free to use for basic link shortening needs
  • Generates quick, compact links suitable for sharing
  • Low barrier to entry with no complex setup required

Recommended for

  • Users who need occasional, basic link shortening without advanced analytics
  • Casual users sharing links on social media or in messages
  • Individuals looking for a free, no-frills URL shortener
  • Not ideal for businesses needing detailed click tracking, custom branding, or enterprise-level link management

Analysis of Optim API

Overall verdict

  • Optim API by Freterium appears to be a specialized route optimization and logistics planning API aimed at businesses needing to streamline delivery and transportation operations, though independent, widely-published user reviews are limited, so its quality should be evaluated through a direct trial against your specific use case.

Why this product is good

  • Offers API-based route optimization which can reduce manual planning time for logistics teams
  • Likely integrates with existing transportation management systems for streamlined workflows
  • Positioned for businesses handling delivery or fleet routing challenges
  • API-first approach allows for custom integration into existing software stacks

Recommended for

  • Logistics and delivery companies seeking route optimization tools
  • Businesses with fleet management needs looking to automate planning
  • Developers needing an API to integrate routing capabilities into existing platforms
  • Companies evaluating cost-saving measures in last-mile delivery operations

Category Popularity

0-100% (relative to Radius.to and Optim API)

Radius.to

Optim API

Event Management
100 100%
Event Management
0% 0
Community Platform
100 100%
Community Platform
0% 0
Group Messaging
100 100%
Group Messaging
0% 0
Community
100 100%
Community
0% 0

Questions & Answers

As answered by people managing Radius.to and Optim API.

What makes your product unique?

Radius.to's answer

An alternative to Meetup, with a free plan. Control your group data with easy export.

User comments

Share your experience with using Radius.to and Optim API. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Radius.to seems to be more popular. It has been mentiond 2 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.

Radius.to mentions (2)

  • Ask HN: What Are You Working On? (February 2026)
    Https://radius.to/ - a Meetup.com alternative of sorts - with fairer organiser pricing for smaller groups. I posted a Show HN [1] here a while back, got tons of great feedback, and have been slowly improving it since, with little marketing. Planning a re-launch here soon. [1] https://news.ycombinator.com/item?id=40717398. - Source: Hacker News / 7 months ago
  • Ask HN: How are you acquiring first 100 users?
    It's easier said than done, I suppose, but my first ~500 users for https://radius.to/ were from HN after hitting the front page. I'd imagine you'd get pretty good results on both ProductHunt and Reddit as well if you can get enough upvotes, though the latter is pretty difficult to promote your products on these days unless it's legitimately relevant to the community you post in. - Source: Hacker News / over 1 year ago

Optim API mentions (0)

We have not tracked any mentions of Optim API yet. Tracking of Optim API recommendations started around May 2022.

What are some alternatives?

When comparing Radius.to and Optim API, you can also consider the following products

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

Facebook Events - Facebook Events enables businesses to organize gatherings, manage invitations and send notifications and reminders to their audience.

Agentset.ai - The open-source RAG platform. Fully performant and with agentic superpowers.

TicketSource - Free, easy to use online ticketing for your events.

Mobilizon - A free and federated tool to get our events off Facebook

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