# Axiospec

> Axiospec is cloud calibration management software from CaliTech LLC for manufacturers and calibration labs working under ISO 9001, ISO/IEC 17025, AS9100, ISO 13485, IATF 16949, and related quality standards. It tracks instruments and gages, records as-found/as-left calibrations with automatic pass/fail, issues certificates, and keeps a tamper-evident hash-chained audit trail. There is a genuinely usable free plan (50 instruments, unlimited users, full platform) and every new workspace runs at full capacity for its first 45 days. Everything linked below is free to read or use with no signup and no email gate.

Key facts: flat published pricing (Free, then $59, $129, $229 per month); unlimited users on every plan; no per-gigabyte storage fees; native iOS and Android apps with offline capture and QR scanning on every plan including free; self-serve CSV/Excel import that reads GAGEtrak and GAGEpack exports; built-in AIAG MSA studies (Gage R&R, bias, linearity, attribute agreement) and per-instrument uncertainty budgets.

The free plan is permanent, not a trial. It covers 50 instruments with unlimited users and the full platform, including the mobile apps, certificates, and the audit trail. No credit card is required to start and nothing expires at the end of the 45-day full-capacity window; the workspace simply settles onto the free plan if it is under 50 instruments.

## Free calculators (browser-based, no signup, each shows its method and cites its standard)

- [Guard-band calculator](https://axiospec.com/tools/guard-band-calculator): TUR and ILAC-G8 guarded acceptance with a generated ISO/IEC 17025 decision-rule statement
- [TUR / TAR calculator](https://axiospec.com/tools/tur-tar-calculator): test uncertainty ratio and test accuracy ratio against the 4:1 rule
- [Measurement uncertainty budget calculator](https://axiospec.com/tools/measurement-uncertainty-budget-calculator): multi-source RSS budget per JCGM 100 (GUM) with coverage factor
- [Type A uncertainty calculator](https://axiospec.com/tools/type-a-uncertainty-calculator): mean, standard deviation, standard uncertainty per JCGM 100
- [Welch-Satterthwaite calculator](https://axiospec.com/tools/welch-satterthwaite-calculator): effective degrees of freedom and coverage factor k
- [Gage R&R calculator](https://axiospec.com/tools/gage-rr-calculator): AIAG average-and-range MSA study, any size
- [Attribute gage R&R calculator](https://axiospec.com/tools/attribute-gage-rr-calculator): attribute agreement analysis with kappa and effectiveness
- [Bias and linearity calculator](https://axiospec.com/tools/bias-linearity-calculator): AIAG MSA bias and linearity studies
- [Process capability calculator](https://axiospec.com/tools/process-capability-calculator): Cp, Cpk, Pp, Ppk and ppm per AIAG SPC
- [Calibration interval calculator](https://axiospec.com/tools/calibration-interval-calculator): reliability-target intervals from as-found history
- [Drift rate interval calculator](https://axiospec.com/tools/drift-rate-interval-calculator): intervals from observed drift
- [Resolution uncertainty calculator](https://axiospec.com/tools/resolution-uncertainty-calculator): resolution contribution per JCGM 100
- [Conformance probability calculator](https://axiospec.com/tools/conformance-probability-calculator): probability of conformance per JCGM 106
- [Thermocouple and RTD uncertainty calculator](https://axiospec.com/tools/thermocouple-rtd-uncertainty-calculator): ITS-90 and IEC 60751 sensor uncertainty
- [Calibration audit readiness assessment](https://axiospec.com/tools/calibration-audit-readiness-assessment): 0-100 self-assessment with a gap list
- [ISO 9001 clause 7.1.5 internal audit checklist](https://axiospec.com/tools/iso-9001-clause-7-1-5-audit-checklist): 26 audit questions across the six requirements of clause 7.1.5, each paired with the objective evidence that answers it, with findings recorded as conformity, nonconformity or observation and the completed audit downloadable as CSV; it does not reproduce the text of ISO 9001
- [Tolerance stack-up calculator](https://axiospec.com/tools/tolerance-stackup-calculator): worst case and RSS stack-up side by side, with the sigma of the gap, variance share per contributor, and a self-check that catches a wrong sign
- [Supplier scorecard calculator](https://axiospec.com/tools/supplier-scorecard-calculator): weighted supplier quality scoring
- [All free tools](https://axiospec.com/tools)

## Free templates (downloadable, no email gate)

- [Gage R&R template](https://axiospec.com/tools/gage-rr-template): Excel workbook with live AIAG average-and-range formulas, machine-verified, plus custom-size CSV data sheets
- [Measurement uncertainty budget template](https://axiospec.com/tools/uncertainty-budget-template): Excel workbook for a GUM (JCGM 100) budget with 20 contributor rows, divisors set by each distribution, root-sum-square combined uncertainty, expanded uncertainty from a fixed k or from Welch-Satterthwaite effective degrees of freedom, and an illustrative worked example
- [Calibration log template](https://axiospec.com/tools/calibration-log-template): editable calibration log exported to CSV
- [Approved supplier list template](https://axiospec.com/tools/approved-supplier-list-template): editable ASL exported to CSV

## Original research and data

- [The US accredited calibration lab landscape](https://axiospec.com/guides/us-accredited-calibration-lab-landscape): counts of accredited US calibration laboratories by accreditation body, built from each body's own public directory, with the full dataset as a downloadable CSV, the counting method shown, and the defects in the source directories disclosed rather than quietly corrected
- [US accredited calibration lab landscape dataset, CSV](https://axiospec.com/us-calibration-lab-landscape-2026.csv): the full 1,743-row dataset behind the study, five accreditation bodies, eleven columns, CC BY 4.0, no signup

## Guides

- [ISO/IEC 17025 and AS9100 calibration documentation requirements](https://axiospec.com/guides/iso-17025-as9100-calibration-documentation): what each standard requires on a calibration record, clause by clause, and what a compliant record looks like for an aerospace or automotive supplier
- [Approving a calibration supplier](https://axiospec.com/guides/approving-a-calibration-supplier): what to check before approving an external calibration lab, how to read a scope of accreditation and a CMC, and the fields an approved supplier list needs for a calibration provider
- [ISO calibration requirements by standard](https://axiospec.com/guides/iso-calibration-requirements): what ISO 9001, ISO/IEC 17025, ISO 13485, AS9100, IATF 16949, and ISO 10012 each require
- [How to set calibration intervals](https://axiospec.com/guides/how-to-set-calibration-intervals): manufacturer guidance, risk and usage, reliability targets from your own as-found history, and what auditors look for
- [ISO/IEC 17025 decision rules and calibration intervals](https://axiospec.com/guides/iso-17025-decision-rules-and-calibration-intervals): how a decision rule and an interval policy fit together under clause 7.1.3
- [As-found vs as-left readings](https://axiospec.com/guides/as-found-as-left-readings): what each state means, why recording both matters for reverse traceability and impact analysis, and how they drive pass, fail, and out-of-tolerance handling
- [Calibration vs verification](https://axiospec.com/guides/calibration-vs-verification): calibration quantifies error and uncertainty against a reference, verification confirms the instrument meets a stated tolerance
- [Tolerance stack-up analysis](https://axiospec.com/guides/tolerance-stack-up-analysis): worst case and root sum square methods, the rebasing step hand calculations skip, what RSS assumes and how far wrong it goes when those assumptions fail
- [Press fit tolerance, transition fit and clearance fit](https://axiospec.com/guides/press-fit-tolerance-transition-and-clearance-fits): how to choose a fit from what the joint has to do, the mechanism behind clearance, transition and interference fits, why bearing seats follow the bearing catalogue rather than the general fits system, and what gauge wear and measurement uncertainty do to the accept or reject decision
- [Guard banding in calibration](https://axiospec.com/guides/guard-banding-in-calibration): a guard band narrows acceptance limits by a share of the measurement uncertainty so a borderline reading cannot be falsely passed, with the common methods, the link to TUR and ILAC-G8, and a worked example
- [Calibration certificate requirements](https://axiospec.com/guides/calibration-certificate-requirements): the required elements under ISO/IEC 17025 clause 7.8 and how to read a certificate you receive
- [Metrological traceability explained](https://axiospec.com/guides/metrological-traceability-explained): the chain to SI and what "NIST traceable" really proves
- [ISO/IEC 17025 accreditation vs certification](https://axiospec.com/guides/iso-17025-accreditation-vs-certification): 17025 labs are accredited by bodies such as A2LA, ANAB, NVLAP, PJLA, and IAS, not certified the way ISO 9001 is
- [Gage R&R and MSA explained](https://axiospec.com/guides/gage-rr-and-msa-explained): %GRR, NDC, and when to run each study
- [Calibration audit prep checklist](https://axiospec.com/guides/calibration-audit-prep-checklist): fifty auditor-phrased questions with what a good answer looks like, plus supplements per standard
- [Calibration software audit trail](https://axiospec.com/guides/calibration-software-audit-trail): the three tests an assessor applies (attributable, timestamped, tamper-evident) and why a spreadsheet fails them
- [How to track calibration due dates](https://axiospec.com/guides/track-calibration-due-dates): how next-due dates are computed, surfaced, and reminded on
- [Choosing calibration management software](https://axiospec.com/guides/choosing-calibration-management-software): a vendor-neutral buyer's guide to capabilities, pricing models, and migration
- [Cloud calibration software](https://axiospec.com/guides/cloud-calibration-software): the honest tradeoffs against on-premise, including data residency, control, and IT burden
- [Calibration software mobile apps](https://axiospec.com/guides/calibration-software-mobile-app): what a real mobile calibration app should do, and how scan-to-log works
- [How to migrate calibration data](https://axiospec.com/guides/how-to-migrate-calibration-data): switching tools without losing history, including from GAGEtrak, GAGEpack, and GageList
- [All guides](https://axiospec.com/guides)

## Product documentation

- [Getting started](https://axiospec.com/guides/getting-started): first-run setup, first instruments, status, and inviting your team
- [Importing your registry](https://axiospec.com/guides/importing-your-registry): CSV preparation through mapping, preview, and row fixes
- [Logging a calibration](https://axiospec.com/guides/logging-a-calibration): readings, reference standard, certificate, and e-signature
- [Mobile app](https://axiospec.com/guides/mobile-app): install, scan an asset, and log offline from the floor
- [Audit pack export](https://axiospec.com/guides/audit-pack-export): Calibration Audit Report PDF, manifest CSV, and per-asset certificates
- [Managing sites and users](https://axiospec.com/guides/managing-sites-and-users): roles, sites, and who sees what across a multi-site workspace
- [Switching to Axiospec](https://axiospec.com/guides/switching-to-axiospec): what moves, the free white-glove migration, and how you leave if you ever want to

## Standards

- [Standards hub](https://axiospec.com/standards): how Axiospec supports 15 quality standards
- [ISO/IEC 17025](https://axiospec.com/standards/iso-17025): calibration requirements, equipment and traceability clauses
- [ISO 9001](https://axiospec.com/standards/iso-9001): clause 7.1.5 calibration requirements checklist
- [ISO 13485](https://axiospec.com/standards/iso-13485): clause 7.6 calibration requirements checklist for medical devices
- [AS9100](https://axiospec.com/standards/as9100): clause 7.1.5 calibration requirements for aerospace
- [IATF 16949](https://axiospec.com/standards/iatf-16949): MSA and calibration requirements for automotive
- [ISO 10012](https://axiospec.com/standards/iso-10012): measurement management systems
- [ANSI/NCSL Z540.3](https://axiospec.com/standards/ansi-ncsl-z540-3): the 2% false-accept risk requirement and how guard banding satisfies it
- [ISO 15189](https://axiospec.com/standards/iso-15189): medical laboratory requirements
- [ISO 17020](https://axiospec.com/standards/iso-17020): inspection body requirements
- [Nadcap](https://axiospec.com/standards/nadcap): aerospace special-process accreditation
- [API Q1](https://axiospec.com/standards/api-q1): oil and gas quality management
- [ASME NQA-1](https://axiospec.com/standards/asme-nqa-1): nuclear quality assurance
- [FSSC 22000](https://axiospec.com/standards/fssc-22000): food safety certification
- [ISO 14001](https://axiospec.com/standards/iso-14001): environmental management monitoring equipment
- [ISO 45001](https://axiospec.com/standards/iso-45001): occupational health and safety monitoring equipment

## Industries

- [Aerospace and defense](https://axiospec.com/industries/aerospace-defense): AS9100 and Nadcap calibration documentation
- [Automotive](https://axiospec.com/industries/automotive): IATF 16949 and AIAG MSA expectations
- [Medical device](https://axiospec.com/industries/medical-device): ISO 13485 and FDA 21 CFR 820.72
- [Pharmaceutical](https://axiospec.com/industries/pharmaceutical): GMP calibration and data integrity
- [All industries](https://axiospec.com/industries)

## Comparisons

- [Best calibration management software 2026](https://axiospec.com/compare/best-calibration-management-software): honest eight-product comparison with a feature matrix, published pricing, and who each tool fits
- [GAGEtrak alternative](https://axiospec.com/compare/gagetrak-alternative)
- [GAGEpack alternative](https://axiospec.com/compare/gagepack-alternative)
- [Fluke MET/CAL and MET/TEAM alternative](https://axiospec.com/compare/metcal-alternative): keep MET/CAL as the procedure editor and runtime, replace MET/TEAM for workflow and asset management
- [ProCal V5 alternative](https://axiospec.com/compare/procalv5-alternative)
- [IndySoft alternative](https://axiospec.com/compare/indysoft-alternative)
- [Calibration Control alternative](https://axiospec.com/compare/calibration-control-alternative)

## Company

- [Pricing](https://axiospec.com/pricing): Free plan and flat monthly plans, unlimited users, no storage fees
- [Security](https://axiospec.com/security): architecture and data handling
- [Developer API](https://axiospec.com/developers): public REST API with personal access tokens
- [About](https://axiospec.com/about)
- [Partner program](https://axiospec.com/partners)
- [Contact](https://axiospec.com/contact)