ANALYTICS
Adding chemical databases with one hand while public ones close programmatic access with the other.
Alternatives · analytics tools
fellingdater alternatives
The best fellingdater alternatives in analytics tools, ranked by Sparkpulse's velocity_score.
Updated Aug 14, 2026
Looking for the best alternatives to fellingdater? Sparkpulse tracks and ranks 12 alternatives in analytics tools by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, fellingdater shipped 0 meaningful updates in the last 30 days and carries a velocity score of 0.0 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.
About fellingdater
Went from estimating felling dates to doing the crossdating that produces them.
fellingdater estimates when a tree was felled from sapwood measurements, the core inference in dendrochronological dating of timber. Version 1.0.0 passed rOpenSci review with that scope, and the 2024 releases were mostly about the accompanying JOSS paper and user-supplied sapwood datasets. Version 1.2.0 changed the package's remit substantially, adding an entire trs_* family for tree-ring series handling: crossdating with multiple statistical measures, the Hollstein and Baillie-Pilcher t-value transformations, parallel variation percentages, synthetic series generation, and dated-series plotting.
Velocity 0.0 · Last update 45m ago
Top 12 alternatives to fellingdater
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
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The spatiotemporal companion to sf, moving at the pace of the packages around it.
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An interface to Europe's long-term ecosystem research network that went quiet after 2.0.
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Spatial model assessment that spent the last year on cross-platform arithmetic and CRAN rules.
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Stopped trusting the cloud to prepare its taxonomic databases and does the conversion locally.
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Rewrote its shaping engine for bidirectional text, then spent a year fixing what that broke.
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Added the HTTP client everyone moved to, then deleted a decade of its own public surface.
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A coordinate parser whose entire job is surviving how badly humans write latitude and longitude.
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Peer-reviewed, feature-complete, and now able to hand its models to other forecasting engines.
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Reorganised its parsers by vendor, then opened the parser slot to users.
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Nine releases of compiler warnings and CRAN checks — the Sass binding is in pure upkeep.
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Two releases in, the open-source SDTM toolkit now covers the domains it originally excluded.
fellingdater vs alternatives — shipping velocity at a glance
Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.
| Product | Velocity | Sparks · 30d | Focus areas | Latest release |
|---|---|---|---|---|
| fellingdater (baseline) | 0.0 | 0 | dendrochronologycrossdatingarchaeology | Adds a full crossdating and tree-ring analysis toolkit |
| webchem | 0.0 | 0 | cheminformaticsweb-apisdata-access | ChemIDplus and PAN queries removed as sources shut down |
| sftime | 0.0 | 0 | spatiotemporalr-spatialinteroperability | — |
| ReLTER | 0.0 | 0 | ecologyresearch-infrastructureropensci | ReLTER v1.0.0 |
| waywiser | 0.0 | 0 | spatial-statisticsmodel-assessmenttidymodels | — |
| taxizedb | 0.0 | 0 | taxonomybiodiversity-datasqlite | SQLite everywhere, three new sources, taxize verbs ported |
| textshaping | 0.0 | 0 | typographytext-shapingbidi | Shaping engine rewritten to honour global text direction |
| vcr | 0.0 | 0 | testinghttp-mockingbreaking-change | 2.0 removes the logging API and the exported R6 classes |
| parzer | 0.0 | 0 | geospatialstring-parsingcoordinates | — |
| dfms | 0.0 | 0 | nowcastingstate-space-modelseconometrics | 1.0: rOpenSci review passed, news decomposition added |
| lightr | 0.0 | 0 | spectrometryfile-parsersbreaking-change | Parsers renamed by vendor; Avantes binary support restored |
| sass | 0.0 | 0 | csssassr-package | — |
| sdtm.oak | 0.0 | 0 | clinical-trialssdtmpharmaverse | sdtm.oak v0.2.0 CRAN release |
The 12 best fellingdater alternatives, in depth
1. webchem · velocity 0.0
Adding chemical databases with one hand while public ones close programmatic access with the other.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “ChemIDplus and PAN queries removed as sources shut down”.
Where fellingdater leans on dendrochronology, crossdating and archaeology, webchem focuses on cheminformatics, web apis and data access.
webchem and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full webchem trajectory → · Compare fellingdater vs webchem →
2. sftime · velocity 0.0
The spatiotemporal companion to sf, moving at the pace of the packages around it.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where fellingdater leans on dendrochronology, crossdating and archaeology, sftime focuses on spatiotemporal, r spatial and interoperability.
sftime and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
3. ReLTER · velocity 0.0
An interface to Europe's long-term ecosystem research network that went quiet after 2.0.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “ReLTER v1.0.0”.
Where fellingdater leans on dendrochronology, crossdating and archaeology, ReLTER focuses on ecology, research infrastructure and ropensci.
ReLTER and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
4. waywiser · velocity 0.0
Spatial model assessment that spent the last year on cross-platform arithmetic and CRAN rules.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where fellingdater leans on dendrochronology, crossdating and archaeology, waywiser focuses on spatial statistics, model assessment and tidymodels.
waywiser and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full waywiser trajectory → · Compare fellingdater vs waywiser →
5. taxizedb · velocity 0.0
Stopped trusting the cloud to prepare its taxonomic databases and does the conversion locally.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “SQLite everywhere, three new sources, taxize verbs ported”.
Where fellingdater leans on dendrochronology, crossdating and archaeology, taxizedb focuses on taxonomy, biodiversity data and sqlite.
taxizedb and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full taxizedb trajectory → · Compare fellingdater vs taxizedb →
6. textshaping · velocity 0.0
Rewrote its shaping engine for bidirectional text, then spent a year fixing what that broke.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “Shaping engine rewritten to honour global text direction”.
Where fellingdater leans on dendrochronology, crossdating and archaeology, textshaping focuses on typography, text shaping and bidi.
textshaping and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full textshaping trajectory → · Compare fellingdater vs textshaping →
7. vcr · velocity 0.0
Added the HTTP client everyone moved to, then deleted a decade of its own public surface.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “2.0 removes the logging API and the exported R6 classes”.
Where fellingdater leans on dendrochronology, crossdating and archaeology, vcr focuses on testing, http mocking and breaking change.
vcr and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
8. parzer · velocity 0.0
A coordinate parser whose entire job is surviving how badly humans write latitude and longitude.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where fellingdater leans on dendrochronology, crossdating and archaeology, parzer focuses on geospatial, string parsing and coordinates.
parzer and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
9. dfms · velocity 0.0
Peer-reviewed, feature-complete, and now able to hand its models to other forecasting engines.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “1.0: rOpenSci review passed, news decomposition added”.
Where fellingdater leans on dendrochronology, crossdating and archaeology, dfms focuses on nowcasting, state space models and econometrics.
dfms and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
10. lightr · velocity 0.0
Reorganised its parsers by vendor, then opened the parser slot to users.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “Parsers renamed by vendor; Avantes binary support restored”.
Where fellingdater leans on dendrochronology, crossdating and archaeology, lightr focuses on spectrometry, file parsers and breaking change.
lightr and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
11. sass · velocity 0.0
Nine releases of compiler warnings and CRAN checks — the Sass binding is in pure upkeep.
Its velocity score of 0.0/10 reflects longer-term release cadence.
Where fellingdater leans on dendrochronology, crossdating and archaeology, sass focuses on css, sass and r package.
sass and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
12. sdtm.oak · velocity 0.0
Two releases in, the open-source SDTM toolkit now covers the domains it originally excluded.
Its velocity score of 0.0/10 reflects longer-term release cadence; its most recent meaningful update was “sdtm.oak v0.2.0 CRAN release”.
Where fellingdater leans on dendrochronology, crossdating and archaeology, sdtm.oak focuses on clinical trials, sdtm and pharmaverse.
sdtm.oak and fellingdater have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full sdtm.oak trajectory → · Compare fellingdater vs sdtm.oak →
Frequently asked questions
What are the best alternatives to fellingdater?
The top fellingdater alternatives we currently track in analytics tools are webchem, sftime, ReLTER, waywiser, taxizedb, ranked by recent ship velocity.
How is this list of fellingdater alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare fellingdater directly with one of these alternatives?
Yes — every card has a "Compare with fellingdater" link to a side-by-side /compare page.