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eulerr vs Fulcrum

A side-by-side editorial comparison of eulerr and Fulcrum — release velocity, themes, recent moves, and the top alternatives to consider.

eulerr vs Fulcrum: at a glance

FeatureeulerrFulcrum
SectorAnalyticsAnalytics
Velocity score0.06.3
Sparks · 30d00
Top themeseuler-diagrams, set-visualization, optimization, cpp-backendgis, esri-migration, offline-maps, field-data-capture
Last editorial update2d ago5h ago
WebsiteVisit →

What is eulerr?

The area-proportional Euler diagram package is finished software, and maintained like it.

eulerr generates area-proportional Euler and Venn diagrams by numerically optimizing shape positions and sizes to match set relationships, with the fitting done in C++. The last feature release was 7.0.0 in December 2022, which made the optimization's loss function user-selectable. Everything since has been maintenance: documentation URL corrections, a strip-layout fix when grouping, an Armadillo deprecation, and an R CMD check warning about an unignored config file.

Read the full eulerr trajectory →

What is Fulcrum?

Fulcrum is betting its whole map stack on Esri, with a hard Google Maps cutoff on September 1.

Fulcrum is a field data collection platform, and nearly every entry in the last month touches mapping. The web app ships weekly fix batches for layer rendering (KML/KMZ, MBTiles, ArcGIS Feature Services), while iOS and Android push near-weekly builds against the ArcGIS SDK. The newest iOS build turns to app-level responsiveness - database queries moved off the main path and the record editor kept interactive while Photo FastFill works in the background.

Read the full Fulcrum trajectory →

eulerr vs Fulcrum: editorial side-by-side

E
eulerr
ANALYTICS
0.0

The area-proportional Euler diagram package is finished software, and maintained like it.

◆ Current state

eulerr generates area-proportional Euler and Venn diagrams by numerically optimizing shape positions and sizes to match set relationships, with the fitting done in C++. The last feature release was 7.0.0 in December 2022, which made the optimization's loss function user-selectable. Everything since has been maintenance: documentation URL corrections, a strip-layout fix when grouping, an Armadillo deprecation, and an R CMD check warning about an unignored config file.

◆ Where it's heading

This is a mature package whose problem is solved, and the release pattern reflects that — three of the last four releases changed nothing a user would see. What activity remains is tracking its dependencies rather than its own roadmap: keeping up with Armadillo's deprecations and R CMD check policy is the whole of recent work. The two September 2025 releases an hour apart are a fix and its follow-up, not a development cycle restarting.

◆ Prediction

The pattern points to continued upkeep triggered by upstream C++ and CRAN check changes rather than new capability. If anything does move, the configurable loss function added in 7.0.0 is the surface with room left in it.

F
Fulcrum
ANALYTICS
6.3

Fulcrum is betting its whole map stack on Esri, with a hard Google Maps cutoff on September 1.

◆ Current state

Fulcrum is a field data collection platform, and nearly every entry in the last month touches mapping. The web app ships weekly fix batches for layer rendering (KML/KMZ, MBTiles, ArcGIS Feature Services), while iOS and Android push near-weekly builds against the ArcGIS SDK. The newest iOS build turns to app-level responsiveness - database queries moved off the main path and the record editor kept interactive while Photo FastFill works in the background.

◆ Where it's heading

The direction is a full consolidation onto Esri. The legacy Google Maps engine retires on September 1 with automatic migration for anyone who has not switched, and Esri now carries Google's satellite and street basemaps so the imagery argument is neutralized. Underneath, the mobile SDK moved to ArcGIS 300.0.0 and ONNX on-device inference gave way to a new INFERENCE format. Two capabilities are visibly staged behind early access rather than shipped: Photo FastFill, and a GPS integration still described as Alpha.

◆ Prediction

Expect the weeks before September 1 to stay dominated by migration-shaped fixes and Esri parity work, with Photo FastFill the nearer of the two early-access programs to general availability given it is already running in shipped builds.

Alternatives to eulerr and Fulcrum

Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either eulerr or Fulcrum.

See all eulerr alternatives → · See all Fulcrum alternatives →

Recent activity from eulerr and Fulcrum

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoFulcrumiOS: async database queries, non-blocking Photo FastFill
  2. 5d agoFulcrumWeb fixes: shared-view exports, MBTiles popups, KML and ArcGIS layers
  3. 7d agoFulcrumAndroid: update offline map layers in place, non-blocking Photo FastFill
  4. 8d agoFulcrumiOS fix: slow location resolution blocked record saves
  5. 13d agoFulcrumWeb: SSO email wording and ArcGIS/deck.gl version bumps
  6. 14d agoFulcrumAndroid fixes: ArcGIS stability, signature button, photo markup
  7. 11mo agoeulerrConfig file added to Rbuildignore to clear a check warning
  8. 11mo agoeulerrDeprecated Armadillo call replaced and doc links repaired
  9. 2y agoeulerrStrip order and layout corrected for grouped diagrams
  10. 2y agoeulerrInternal documentation and a stale link corrected
  11. 3y agoeulerrLayout optimization gains a selectable loss function
  12. 4y agoeulerrCitation added and error messages improved

Frequently asked questions

What is the difference between eulerr and Fulcrum?

They serve adjacent needs but don't currently overlap on shipped themes. Fulcrum is currently shipping more aggressively (velocity 6.3 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is eulerr better than Fulcrum?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Fulcrum is currently shipping more aggressively (velocity 6.3 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to eulerr?

Top eulerr alternatives in Analytics are ranked by recent ship velocity. Browse the "eulerr alternatives" section above for the current picks, or visit /alternatives/eulerr for the full list with editorial commentary on each.

What are the best alternatives to Fulcrum?

Top Fulcrum alternatives in Analytics are ranked by recent ship velocity. Browse the "Fulcrum alternatives" section above for the current picks, or visit /alternatives/fulcrum for the full list with editorial commentary on each.