Alternatives and competitors

Sites like Simperium

The 20 closest backend data sync service alternatives to Simperium, ranked by what they actually offer, and the 7 technologies behind it.

Looking for an alternative to Simperium? The closest matches are Zimperium, Syncthing and Visual Studio App Center. We match sites by what they actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Vote on each alternative and leave a short note to help the next person choose.

Neighbours
k = 20
Sites searched
4,032
Vector
384-d
Query
16 ms

01 · Entity

About Simperium

Simperium simperium.com

Simperium: A cross-platform data sync service.

Simperium is a cross-platform data sync service.

Top 10K · #4,944 English 7 technologies Crawled Nov 6, 2026
Visit Simperium

Summary by Claude

Simperium is a cross-platform data synchronization service that lets developers store app data and keep it in sync across devices; it powers Simplenote and is owned by Automattic.

Who it’s for
Mobile and web app developers

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Simperium’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

similarity × popularity

TurnitinScribdObsidianSlideShareSimilarwebSiemenspastebin.comVisual Studio App CenterSyncthingZimperium

03 · Nearest neighbours

Alternatives to Simperium

Thumbs up if it’s a real alternative to Simperium, thumbs down if it isn’t.

Only in English
  1. 01
    Zimperium zimperium.com Top 10K English

    Zimperium Mobile Security Solutions | Mobile Security for Apps & Devices

    Zimperium is the only mobile security platform purpose-built for enterprise, securing both mobile devices and applications so they can securely access data.

  2. 02
    Syncthing syncthing.net Top 10K English

    Syncthing

    open source continuous file synchronization software

  3. 03
    Visual Studio App Center appcenter.ms Top 1K English

    Visual Studio App Center | iOS, Android, Xamarin & React Native

    Continuously build, test, release and monitor apps for every platform.

  4. 04
    pastebin.com Top 10K English

    Pastebin.com - #1 paste tool since 2002!

    Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

  5. 05
    Siemens siemens.com Top 10K English

    Siemens home | Siemens

    Siemens: A global technology leader driving innovation in industry, infrastructure and mobility through digital transformation.

  6. 06
    Similarweb similarweb.com Top 10K English

    Similarweb: AI-Powered Digital Data Intelligence Solutions

    Similarweb is an AI-powered digital data company providing real-time market intelligence, competitive insights, and consumer trends to accelerate business growth.

  7. 07
    SlideShare slideshare.net Top 1K English

    Client Challenge

    American hosting service, owned by Scribd, for professional content including presentations, infographics, documents, and videos

  8. 08
    Obsidian obsidian.md Top 10K English

    Obsidian - Sharpen your thinking

    The free and flexible app for your private thoughts.

  9. 09
    Scribd scribd.com Top 1K English

    Scribd: Home to the world’s documents.

    Get to the source. Specialized knowledge on any topic, and answers you won’t find anywhere else. Home to the world’s documents, 300M+ and counting.

  10. 10
    Evernote evernote.com Top 10K

    Best Note Taking App - Organize Your Notes with Evernote

    Our note taking app helps you capture and prioritize ideas, projects and to-do lists, so nothing falls through the cracks. Start your free trial today!

  11. 11
    Turnitin turnitin.com Top 10K

    ERROR: The request could not be satisfied

    Internet-based plagiarism-prevention service

  12. 12
    Customer customer.io Top 10K English

    Customer.io: Customer Engagement Platform For Better Outcomes

    Customer.io is a customer engagement platform for creating personalized journeys and better business outcomes across email, push, SMS, and in-app messaging.

  13. 13
    Supabase supabase.com Top 10K English

    Supabase | The Postgres Development Platform

    Build production-grade applications with a Postgres database, Authentication, instant APIs, Realtime, Functions, Storage and Vector embeddings. Start for free.

  14. 14
    Braze braze.com Top 1K English

    Braze Customer Engagement Platform

    Power customer-centric interactions between consumers and brands in real-time.

  15. 15
    Samsung Cloud samsungcloud.com Top 1K English

    Samsung Cloud

    See what's synced and backed up across your Samsung devices.

  16. 16
    SteamDB steamdb.info Top 10K English

    SteamDB

    online video game database

  17. 17
    datadoghq.com Top 1K English

    Cloud Monitoring as a Service | Datadog

    See inside any stack, any app, at any scale, anywhere.

  18. 18
    Semrush semrush.com Top 10K English

    Semrush: Your Unfair Advantage for Growing Brand Visibility

    Semrush is the leading platform to grow and measure brand visibility across AI search, SEO, PPC, social, and more.

  19. 19
    AppsFlyer appsflyer.com Top 1K English

    AppsFlyer | Modern Marketing Cloud

    Unify measurement, deep linking, data collaboration, and AI across mobile, web, CTV, console and beyond. Make smarter decisions, optimize every channel, and prove impact with the platform built for modern marketing.

  20. 20
    Android android.com Top 1K German

    Android | Mehr Möglichkeiten mit Google für Android-Smartphones und -Geräte

    Finde mehr über Android heraus und entdecke, wie du mit Android-Geräten das Beste von Google noch besser nutzen kannst – dank hervorragender Konnektivität, leistungsstarkem Schutz, vielseitigen Google-Apps und Quick Share.

Ranked by score: the cosine similarity of each site’s vector to simperium.com’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Simperium uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Simperium is built with, and what its closest competitors use, from its homepage’s code and its DNS records.

Built with

JavaScript libraries
  • jQuery asset https://simperium.com/media/js/libs/jquery-1.11.1.min.js
CSS & UI
  • Bootstrap asset https://simperium.com/media/css/bootstrap.css
Fonts
Analytics
Web servers
  • nginx header server: nginx
Email delivery
  • Mailgun TXT v=spf1 include:_spf.automattic.com include:mailgun.org ~all
SaaS tools (verified in DNS)

Stack changes

No changes yet. Each new crawl is compared with the last one, and what Simperium adds or drops shows up here.

SimilarSiteSearch

Competitors by meaning, stacks from the source. Data from public homepages and DNS.

About our crawler