Local buffer formulation control

Buffercast

Plan buffer components, link stocks and lots, execute a traceable batch, record measured quality, and export the evidence without an account or cloud service.

iPhone + iPadOffline workspacePDF, CSV + JSON exportNo tracking

From intent to evidence

Bench control, end to end

Buffercast separates planning estimates from measured results. Every batch keeps its formulation revision, source lots, ordered additions, observations, calibration chain, and accountable disposition together.

Buffercast planner showing calculated component quantities and the formulation fingerprint
Transparent component planning with explicit assumptions and blocking checks.
Buffercast batch run showing execution checklist and actual additions
Execution records connect actual additions, lots, deviations, and measured observations.
Buffercast quality screen showing final measurement and calibration records
Measured quality remains distinct from the plan and requires a recorded disposition.
Buffercast evidence screen listing PDF CSV and JSON export files
A human-readable report and machine-readable files travel together.

Built for technical work

Useful controls, visible limits

No hidden recommendation engine and no automatic acceptance. Buffercast calculates from the values you enter and keeps the method boundary visible.

Versioned formulations

Target volume, pH, tolerance, temperature, component order, stock strength, reagent form, source lot, and a deterministic SHA-256 fingerprint.

Transparent planning

Stock transfer, solid mass, percent formulations, and an idealized conjugate-pair estimate with range and temperature warnings.

Traceable execution

Run identity, operator, controlled checklist, planned versus actual quantities, deviations, pH observations, and notes.

Recorded quality

Measured pH, temperature, conductivity, osmolality, instrument IDs, calibration references, reviewer, rationale, and disposition.

Durable handoff

Export a batch PDF, additions CSV, pH-observation CSV, and structured JSON evidence packet through the iOS share sheet.

Local privacy

No account, analytics, advertising, tracking, cloud database, camera, microphone, location, contacts, or photo-library permission.

Primary references

Methods should be inspectable

Buffercast links to primary metrology and laboratory-safety sources. User-entered values and planning equations do not replace validated procedures, certified references, safety documentation, or professional judgment.