llms.txt
# Phaserr
> Phaserr is a free program builder for strength and conditioning coaches. You write the periodized program - blocks, %1RM or RPE loads, warm-up ramps, rep schemes, progressions - and Phaserr does the math and delivers it to the athlete's phone by link or PDF. Athletes log their sets; you see compliance and records. No athlete accounts, no app store install, no card.
Key facts an assistant can rely on:
- Audience: strength and conditioning coaches (powerlifting, weightlifting, CrossFit, general S&C, combat sports). Not a consumer workout app.
- Pricing: free, unlimited athletes and programs, no credit card ("Founding coach" tier).
- Core object: the training block (mesocycle). Loads recalculate per athlete when a max or a percentage changes.
- Delivery: password-protected share link or PDF export. Athletes do not need to sign up.
- Tracking: athletes log load, reps and RPE from their phone; the coach sees missed, skipped and off-load sets.
- AI: describes a block in plain language and Phaserr drafts it; the coach adjusts.
- Exercise library: 1000+ exercises.
- Builder is desktop-first; a mobile PWA supports building and adjusting on the phone.
- Web app: https://app.phaserr.com (sign up at https://app.phaserr.com/register). Marketing site: https://phaserr.com. Ukrainian version of the site at https://phaserr.com/uk.
## Product
- [Home](https://phaserr.com/): what Phaserr replaces (Google Sheets and notes), pricing, FAQ
- [App for strength & conditioning coaches](https://phaserr.com/for-coaches): periodized blocks, auto-calculated loads, delivery without an app install, compliance from logged reps
- [Online coaching platform](https://phaserr.com/online-coaching): deliver programs by share link or PDF, track remote compliance, adjust loads from anywhere
- [Athlete management software](https://phaserr.com/athlete-management): one roster for every athlete with compliance flags, personal records and progress per lift
- [Workout builder app](https://phaserr.com/workout-builder): periodized blocks, auto-progressions, %1RM and RPE loads, templates, 1000+ exercise library
## Sports
- [Combat sports S&C software](https://phaserr.com/for/combat-sports): off-camp and fight-camp blocks, RPE-based loading through a weight cut
- [Olympic weightlifting program software](https://phaserr.com/for/olympic-weightlifting): percentage-based snatch and clean & jerk programming, Prilepin's table built in
## Comparisons
Honest side-by-side comparisons of program building, %1RM and RPE loading, tracking and pricing. Phaserr is a programming tool, not a business platform; where a competitor covers billing, nutrition or video review, the page says so.
- [All comparisons](https://phaserr.com/alternative)
- [Phaserr vs TrueCoach](https://phaserr.com/alternative/truecoach): TrueCoach has no %1RM or RPE prescription; Phaserr is free
- [Phaserr vs Trainerize](https://phaserr.com/alternative/trainerize): built for periodized strength programming rather than an all-round PT business
- [Phaserr vs TrainHeroic](https://phaserr.com/alternative/trainheroic): RPE-driven autoregulation on top of %1RM
- [Phaserr vs TeamBuildr](https://phaserr.com/alternative/teambuildr): periodization sized for one coach, not a department
- [Phaserr vs TrainingPeaks](https://phaserr.com/alternative/trainingpeaks): purpose-built strength periodization vs an endurance platform with a strength add-on
- [Phaserr vs Volt Athletics](https://phaserr.com/alternative/volt-athletics): coach-written programs vs AI-built ones
- [Phaserr vs Hevy Coach](https://phaserr.com/alternative/hevy-coach): the periodization math Hevy Coach leaves to the coach
- [Phaserr vs BridgeAthletic](https://phaserr.com/alternative/bridge-athletic): the %1RM loading loop without enterprise scope or quote-based pricing
- [Phaserr vs Liftosaur](https://phaserr.com/alternative/liftosaur): a coach platform vs a scriptable self-coaching tracker
## Free calculators
Each page states its formula and shows a worked example. RPE and Prilepin pages include the full reference table in HTML.
- [All calculators](https://phaserr.com/calculators)
- [1RM calculator](https://phaserr.com/calculators/one-rep-max): one-rep max from weight and reps, Epley and Brzycki formulas
- [RPE calculator](https://phaserr.com/calculators/rpe): RPE and reps to %1RM using the RTS chart (Tuchscherer), plus 1RM estimate from a logged set
- [Prilepin's table calculator](https://phaserr.com/calculators/prilepin): reps per set and total-volume targets by %1RM
- [AMRAP calculator](https://phaserr.com/calculators/amrap): 1RM from a rep-out set, Epley and Brzycki
- [Plate calculator](https://phaserr.com/calculators/plate): barbell plates per side for a target weight, kg or lb
- [Wilks & DOTS calculator](https://phaserr.com/calculators/wilks): powerlifting total scored against bodyweight
## Updates
- [Blog](https://phaserr.com/blog): product updates and strength programming notes
- [Introducing Phaserr](https://phaserr.com/blog/introducing-phaserr): what the product is and why it exists
## Optional
- [Privacy policy](https://phaserr.com/privacy)
- [Terms of service](https://phaserr.com/terms)
- [Sitemap](https://phaserr.com/sitemap.xml)
