COMPARE · §1.0

Calyber Labs versus the alternatives.

A direct comparison of Calyber Labs, RP Hypertrophy App, Hevy, and hand-built spreadsheets across the dimensions that matter for evidence-based training.

Feature comparison as of 2026-05-15
Attribute	Calyber Labs	RP Hypertrophy App	Hevy	Hand-built spreadsheet
Pricing	Free + $19/mo Founding (locked) / $29/mo Standard	Subscription; check rp.fitness for current pricing	Free + premium tier	Free (time cost: high)
Autoregulation algorithm	Three-pipeline (load, volume, recovery); deterministic. 34 adjustments published; see /sample	RP coaching methodology; app enforces RP volume landmarks	None; manual logging only	User-defined if built; none by default
Prescription transparency	Full: every prescription shows its basis (inputs and formula)	Methodology documented externally; in-app basis not shown	N/A; no prescriptions	Full if user builds it in; none otherwise
e1RM tracking	Automatic via Epley dual-constant; 1,068 sets logged across the published mesocycle	Yes; core to RP methodology	Yes; via in-app calculator	Manual if built in
Deload logic	Reactive: MGFI-triggered at 50% peak 1RM	Prescribed by program structure	None; manual decision	User-defined
Data export	CSV / JSON; post-launch roadmap	Limited; check current app features	CSV export available	Native (it is a spreadsheet)
Calculation visibility	All formulas documented at /algorithm	Methodology documented at rp.fitness; in-app formulas not published	Not applicable	Full: user sees every formula
Primary user mode	Evidence-based lifters who want algorithmic prescription	RP methodology adherents; coached and self-coached	Social logging; workout tracking	Power users willing to build their own system
Educational content	Algorithm breakdowns at /algorithm	Extensive: library, courses, YouTube	Minimal	None built-in

§3 · Methodology.

This comparison is based on publicly documented product behavior as of 2026-05-08. Competitor pricing and features change frequently; verify current details at each product's official website. Calyber Labs does not guarantee the accuracy of third-party information beyond the date above.

§4 · Proof anchor.

Most product comparisons in this category are marketing assertions. The Calyber column above maps to a published mesocycle: 13 weeks, 1,068 sets, 34 algorithmic adjustments. Every row is testable against that export.

See the readout →

§5 · Acknowledged gaps.

Educational content: RP Hypertrophy App ships with an extensive library of training methodology videos and courses. Calyber Labs does not.
Social logging: Hevy has best-in-class social workout sharing and friend activity features. Calyber Labs does not have social features by design.
Coaching ecosystem: RP offers coach-athlete programs and human oversight. Calyber is a self-directed tool.
Mobile app: Calyber Labs is a web application. Native iOS/Android apps are not available.

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