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Comparison · Infra & APIs
PowerTOST vs tealeaves
A side-by-side editorial comparison of PowerTOST and tealeaves — release velocity, themes, recent moves, and the top alternatives to consider.
PowerTOST vs tealeaves: at a glance
What is PowerTOST?
A bioequivalence sample-size workhorse whose news is which regulator it now covers
PowerTOST computes power and sample size for bioequivalence and its changelog reads as a record of regulatory divergence more than statistical development. Version 1.5-3 added the Gulf Co-operation Council as a regulator setting; 1.5-4 and 1.5-6 stripped 'FDA' out of the narrow-therapeutic-index function names once China's CDE began requiring the same evaluation. The most recent release, 1.5-7, is a single fix to how nvec() splits a total sample size across sequences.
What is tealeaves?
A leaf-temperature model that finished its job in 2020 and has stayed finished
tealeaves solves for leaf temperature from an energy balance, using explicit units to keep parameters consistent and modelling lower and upper leaf surfaces separately so sensible and latent heat loss are computed for each. The package reached its current form in 2020 across versions 1.0.2 to 1.0.5, which added direct or functional sky temperature, dplyr 1.0.0 compatibility, and fixes to a parameter-crossing bug that the new sky temperature function had introduced. The only release since, v1.0.6 in July 2022, corrects a name in the citation file, stops parallel evaluation in a vignette and fixes README links.
PowerTOST vs tealeaves: editorial side-by-side
PowerTOST
0.0INFRA · APIS
A bioequivalence sample-size workhorse whose news is which regulator it now covers
◆ Current state
PowerTOST computes power and sample size for bioequivalence and its changelog reads as a record of regulatory divergence more than statistical development. Version 1.5-3 added the Gulf Co-operation Council as a regulator setting; 1.5-4 and 1.5-6 stripped 'FDA' out of the narrow-therapeutic-index function names once China's CDE began requiring the same evaluation. The most recent release, 1.5-7, is a single fix to how nvec() splits a total sample size across sequences.
◆ Where it's heading
The package is in long maintenance with a widening regulatory surface: the statistical methods are settled, and releases arrive when an agency publishes a framework that can be expressed as a settings variant of an existing method. Function naming has been deliberately decoupled from any single agency, with the deprecated FDA-suffixed aliases carried for years before removal. Cadence has slowed to roughly one release every eighteen months.
◆ Prediction
The next release is most likely another regulator setting or a small fix; on the deprecation notice already given, the power.NTIDFDA()-style aliases are the obvious removal candidate.
tealeaves
0.0INFRA · APIS
A leaf-temperature model that finished its job in 2020 and has stayed finished
◆ Current state
tealeaves solves for leaf temperature from an energy balance, using explicit units to keep parameters consistent and modelling lower and upper leaf surfaces separately so sensible and latent heat loss are computed for each. The package reached its current form in 2020 across versions 1.0.2 to 1.0.5, which added direct or functional sky temperature, dplyr 1.0.0 compatibility, and fixes to a parameter-crossing bug that the new sky temperature function had introduced. The only release since, v1.0.6 in July 2022, corrects a name in the citation file, stops parallel evaluation in a vignette and fixes README links.
◆ Where it's heading
This is finished scientific software. The arc runs from a 1.0.0 that already described the full model, through a usability decision in 1.0.1 to accept unitless values and assign units rather than demand them, to a 2020 cluster of compatibility and correctness work around publication. Nothing since has touched the model, and the 2022 release is pure paperwork. Its most instructive entry remains 1.0.5, where a new feature silently produced incorrect parameter crossing and the fix arrived with tests to pin the behaviour.
◆ Prediction
Expect nothing unless a dependency or CRAN check forces a release; on this record any such release will be documentation and packaging rather than a change to the energy balance.
Alternatives to PowerTOST and tealeaves
Other Infra & APIs 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 PowerTOST or tealeaves.
Cursor
Cursor's agents stop waiting to be asked - they subscribe, and they hold a goal until it's done.
incident.io
Nexus does the diagnosis; the agent is now reaching into the status page too.
Warp
Warp turned its quarter of software-factory essays into infrastructure you can buy.
Okta
Okta's developer blog is a Cross App Access campaign, now diluted by advocacy-team storytelling.
Infisical
A credential platform assembled two or three pull requests at a time, never a headline
See all PowerTOST alternatives → · See all tealeaves alternatives →
Recent activity from PowerTOST and tealeaves
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 10mo agoPowerTOSTFix for splitting total sample size across sequences
- 2y agoPowerTOSTNTID functions renamed off the FDA acronym; GCC guidance in vignettes
- 4y agotealeavesCitation file, vignette and README fixes
- 4y agoPowerTOSTpower.NTID() aliases added; FDA-suffixed names deprecated
- 5y agoPowerTOSTGulf Co-operation Council added as a regulator setting
- 5y agoPowerTOSTMaintenance release with vignette and documentation clarifications
- 5y agoPowerTOSTstringsAsFactors fix for older R in a vignette example
- 6y agotealeavesParameter-crossing bug fixed with tests; coverage added
- 6y agotealeavesFix for custom sky temperature function being overwritten
- 6y agotealeavesSky temperature as value or function; dplyr 1.0.0 compatibility
- 7y agotealeavesUnitless parameter values now accepted and assigned units
- 7y agotealeavesFirst release: leaf energy balance with per-surface conductances
Frequently asked questions
What is the difference between PowerTOST and tealeaves?
They serve adjacent needs but don't currently overlap on shipped themes. PowerTOST and tealeaves are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is PowerTOST better than tealeaves?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. PowerTOST and tealeaves are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to PowerTOST?
Top PowerTOST alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "PowerTOST alternatives" section above for the current picks, or visit /alternatives/powertost for the full list with editorial commentary on each.
What are the best alternatives to tealeaves?
Top tealeaves alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "tealeaves alternatives" section above for the current picks, or visit /alternatives/tealeaves for the full list with editorial commentary on each.