Head-to-Head Biomechanical Comparison•Updated 2026

Why Calisthenics, Streetlifting & Hybrid Athletes Switch to ENIX

Generic gym trackers like Hevy and Strong treat bodyweight mastery like a flat list of barbell exercises, while follow-along video apps like Thenx and Freeletics lack structured progressive overload and weighted streetlifting math. See how ENIX compares category by category.

Executive Summary • 3 Architectural DifferentiatorsLevels 1–17 • 7 Logging Schemas • 100% Offline-First

01. Proprietary Skill Trees

35 Skill Families (Levels 1–17)

Instead of guessing when you are ready for Straddle Planche or Front Lever, ENIX maps every leverage progression in a Directed Acyclic Graph (DAG) with quantitative readiness gates.

02. True Streetlifting Math

Total System Load 1RM (`BW + Belt`)

Generic gym trackers calculate Epley 1RM on external plate weight alone. ENIX separates strict bodyweight, (Weighted), and (Assisted) entities and computes true × BW ratios.

03. Eyes-Free Isometric HUD

CoreHaptics + Live Activity Timer

You cannot look at an iPhone screen while inverted in a Handstand or staring at the floor in a Planche. ENIX fires 1s tick and 5s milestone wrist/phone haptics plus Lock Screen Live Activities.

Detailed Head-to-Head Breakdowns

Select a Competitor Comparison

Tested across isometric skill progressions, weighted streetlifting, and hybrid barbell training

18 Criteria Tested · 2026-11-06Full Matrix →

ENIX vs. Hevy: vs. Hevy

An 18-category technical teardown comparing ENIX's proprietary Skill Progression Trees, strict 7-type biomechanical logging, and Eyes-Free Hold Timer HUD against Hevy's gym tracker.

Best ForENIX: Calisthenics skill mastery
Proprietary Skill Progression TreesENIX: Yes — 35 progression families & 8 interactive DA
Bodyweight vs. (+Weighted) vs. (Assisted) SeparationENIX: Strict 7-Type Biomechanical Model
Compare ENIX vs. HevyRead Comparison →
16 Criteria Tested · 2026-11-06Full Matrix →

ENIX vs. Strong: vs. Strong

How ENIX modernizes minimalist workout logging with iOS 27 Liquid Glass, proprietary Levels 1–17 Skill Trees, and native isometric hold timing.

Best ForENIX: Calisthenics skill athletes, weighted streetlift
Free Tier Routine LimitENIX: Generous free core with full Skill Atlas access
Skill Progression RoadmapENIX: 8 interactive DAG Skill Trees + 35 progression f
Compare ENIX vs. StrongRead Comparison →
14 Criteria Tested · 2026-11-06Full Matrix →

ENIX vs. Thenx & Freeletics: vs. Thenx / Freeletics

Why serious calisthenics and streetlifting athletes graduate from randomized HIIT video circuits to ENIX's quantitative progression trees and set-by-set logger.

Training MethodologyENIX: Quantitative progressive overload, Isometric Pri
Weighted Streetlifting (+kg Belt) LoggingENIX: Full `WEIGHT_AND_REPS` & `WEIGHTED_DURATION` tra
Custom Routine Builder & CloningENIX: Build custom hybrid splits, set exact hold/rep/k
Compare ENIX vs. Thenx / FreeleticsRead Comparison →
18 Criteria Tested · 2026-11-06Full Matrix →

Best Calisthenics Apps (2026): vs. All Major Apps

Comprehensive 2026 buyer's guide evaluating ENIX, Hevy, Strong, Thenx, and Freeletics across skill trees, isometric timers, streetlifting 1RM math, and pricing.

#1 ENIX (iOS & Web Atlas)ENIX: Best Overall for Calisthenics Skills
#2 HevyENIX: Best for traditional bodybuilding splits and lar
#3 StrongENIX: Best minimalist barbell spreadsheet logger, but
Compare ENIX vs. All Major AppsRead Comparison →

2026 Master Capability Matrix

ENIX vs. Hevy vs. Strong vs. Thenx / Freeletics

Every core feature required for bodyweight skill mastery, weighted calisthenics, and hybrid strength training compared side by side.

Feature / Biomechanical RequirementENIX (iOS 27)HevyStrongThenx / Freeletics
Proprietary Skill Progression Trees (Levels 1–17)✅ 35 Skill Families + 8 Interactive DAGs❌ Flat exercise list only❌ Flat exercise list only⚠️ Static workout videos (no DAG)
Quantitative Skill Readiness Gate Diagnostics✅ Planche, Front Lever & Dip-to-Planche calculators❌ Not supported❌ Not supported❌ Not supported
Isometric Prilepin Hold Table Prescriptions✅ Auto 65–75% max hold × 4–6 sets❌ Not supported❌ Not supported❌ Fixed video timers
Strict Bodyweight vs. (Weighted) vs. (Assisted) Split✅ 7 native biomechanical logging schemas⚠️ Manual custom exercises required⚠️ Manual workarounds❌ No weighted streetlifting logger
Total System Load Streetlifting 1RM (`BW + Belt`)✅ Epley & Brzycki on Total Load + `× BW` ratio❌ External plate load only❌ External plate load only❌ Not supported
Eyes-Free Haptic Isometric Hold Timer✅ 1s tick & 5s milestone CoreHaptics pulses❌ Rest timer only❌ Rest timer only⚠️ Screen audio beeps only
Dynamic Island & Lock Screen Live Activity HUD✅ Live Hold Timer + Rest Timer + Set Counter✅ Rest timer & set logging✅ Basic Live Activity❌ No Lock Screen set logger
Dual-Angle (`40°` & `120°`) Full-ROM 4:3 Execution Loops✅ Standardized 4:3 biomechanical video loops⚠️ 2D illustrations / basic clips⚠️ Small animated thumbnails✅ Follow-along instructor videos
Barbell, Dumbbell & Hybrid Leg Day Support✅ Full Squat, Deadlift, Bench & gym catalog✅ Full gym catalog✅ Full gym catalog❌ Minimal barbell tracking
Free Tier Routine Cap & Account Requirement✅ Unlimited core logging + zero mandatory login⚠️ Capped at 4 routines; login required⚠️ Capped at 3 routines⚠️ Paywalled programs ($59–$119/yr)

Transparent Pricing & Free Tier Audit

Workout App Pricing Comparison (2026)

ENIX never holds your workout logbook hostage behind a 3-routine paywall. Core workout logging, all 35 Skill Progression Trees, and offline SwiftData history are free forever.

AppFree Tier LimitsMonthlyAnnualLifetime UnlockCalisthenics & Streetlifting Support
ENIXBest Value
Unlimited Offline Workouts, All 8 Proprietary Skill Trees (L1–L17), Hold Timer HUD, 360+ Exercises, Zero Ads$3.99 / mo$24.99 / yr (~$2.08/mo)$69.99 One-TimeNative Proprietary Skill Trees + 7 Biomechanical Logging Types
Hevy
Workout logging capped at 4 routines & limited graph history$2.99 – $4.49 / mo$23.99 / yr$74.99 – $89.99Generic gym list; no skill trees, plate-only 1RM math
Strong
Capped at 3 saved routines; no custom exercise history unlocks$4.99 / mo$29.99 / yr$99.99Spreadsheet gym logger; no skill trees or haptic hold cadence
Thenx / Heria Pro
Limited sample follow-along workouts$9.99 / mo$59.99 – $79.99 / yrNot OfferedVideo classes; no streetlifting Total System Load 1RM or DAG skill trees
Freeletics
Basic HIIT workouts only$11.99+ / mo$79.99 – $119.99 / yrNot OfferedCardio/HIIT circuits; no isometric Prilepin or weighted dip-belt tracking
Test the ENIX Engine Right in Your Browser

Explore Live Skill Trees & Readiness Calculators Before Downloading

See why 4.9★ rated calisthenics and hybrid athletes rely on ENIX's interactive Skill Atlas and diagnostic tools.

Switch to ENIX — 35 Skill Progression Trees + True Streetlifting Logger

Free iOS 27 Calisthenics Skill Atlas, Hold Timer & Streetlifting Logger