Comparison

Khalisthenics vs Phase

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Khalisthenics

This AI-powered fitness coach analyzes your workouts in real-time, providing instant feedback on your form. Track 33 points on your body in 3D to improve range of motion, alignment, and stability. Works offline with local processing for privacy.

Highlights
  • Real-time 3D form analysis
  • Instant rep feedback
  • Post-workout analytics
  • Automatic logging
  • Progress tracking
  • Offline functionality
  • Local data processing
Features
Read full description

Master Your Body With Intelligence. Stop guessing if your form is correct. Khalisthenics is an AI-powered fitness coach that analyzes your workouts in real time and provides instant feedback. Real-Time or Pre-Recorded Video Form Analysis Track 33 points on your body in 3D space at 30 frames per second. Receive live feedback during each rep, including: - Range of motion quality - Spine and torso alignment - Elbow flare and stability - Leg drive and positioning - Wrist stack and bar path - Exercise-specific metrics Exercises Supported - Pushups - Pullups - Squats - Dips - Handstand (freestanding or wall-assisted) - Bench Press - Bent-Over Rows - Bicep Curls Post-Workout Reports Every set includes: - Form score (0-100) - Detailed metric breakdowns - Error timestamps - Energy and phase analysis Automatic Logging and Playback - Logs all sets, reps, and exercises automatically - Video playback with overlays of your form scoring, rep tracking - Timestamped error detection - Slow-motion review for corrections Progress Tracking and Motivation - Track improvements with interactive charts - Record personal bests and workout streaks - Unlock achievement badges Privacy and Security - All processing happens locally on your device - No cloud uploads or external tracking - Works offline with complete control over your data Key Features - 33-point 3D tracking - Real-time feedback at 30 FPS - Or analyze pre-recorded videos - Automatic rep counting - Post-workout analytics - Achievement system - 100% local processing - Works offline - No subscription required Download Khalisthenics today and see how smart tracking can improve your workouts.

About

Phase

This app guides you through a personalized daily plan to gradually shift your sleep schedule. It provides timed nudges based on your local sunrise and sunset to help you achieve your desired bedtime and wake-up times.

Highlights
  • Personalized day-by-day sleep schedule
  • Science-backed daily nudges
  • Multiple sleep programs for different needs
  • Location-aware sunrise/sunset sync
  • Offline functionality
  • HealthKit integration
  • Home and Lock Screen widgets
Features
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Your sleep schedule is off. Phase shifts it back — one day at a time. Phase is a guided program that fixes your broken sleep schedule through small, progressive daily shifts. No vague advice. No endless tracking. Just a clear plan that moves your bedtime and wake time closer to your goal — 15 minutes at a time. Tell Phase when you currently sleep, when you want to sleep, and it builds a personalized day-by-day plan to get you there. HOW IT WORKS - Pick a program that fits your situation - Set your current and goal sleep times - Get a personalized day-by-day schedule - Follow science-backed daily nudges - Watch your sleep shift into place 6 SLEEP PROGRAMS Phase is not one-size-fits-all. Pick the program that matches your situation: - Sleep Schedule Reset — the original 14-day phase shift - Night Owl Fix — stop going to bed at 3 AM - Jet Lag Recovery — get back on local time fast - Weekend Drift Reset — fix the Sunday-night-to-Monday-morning gap - Shift Work Transition — adjust to a new work schedule - Early Riser Challenge — become a morning person in two weeks YOUR DAILY NUDGES Every day, Phase gives you timed nudges based on your schedule and your local sunrise and sunset: - Morning Light — get sunlight early to reset your internal clock - Caffeine Cutoff — stop caffeine at the right time so it does not interfere with sleep - Screen Dim — reduce blue light before bed to protect melatonin - Wind Down — start your pre-sleep routine at the right moment - Bedtime — hit the pillow at your new target time All nudge times adjust automatically as your schedule shifts forward each day. Toggle nudges on or off and fine-tune timing to fit your life. WIDGETS AND LIVE ACTIVITY - Home Screen and Lock Screen widgets for sun position, nudge checklist, bedtime countdown, and sleep stats - Bedtime Live Activity — a countdown on your Lock Screen and Dynamic Island as bedtime approaches - Bedtime alarm that rings through Silent Mode and Do Not Disturb WHAT MAKES PHASE DIFFERENT - A real program, not a tracker — a clear plan with a finish line - Location-aware — nudge times sync with your actual sunrise and sunset - Works offline — no account, no login, no cloud - Science-backed — based on circadian rhythm research - Beautiful Sun Arc — a visual map of your day showing light, nudges, and targets - Schedule exceptions — have an early flight? Adjust one day without breaking your plan - Takes 30 seconds to set up TRACK YOUR PROGRESS See your journey laid out. Check off each day. Build streaks. Get encouragement when you need it. Know exactly how far you have come and how close you are to your goal. HEALTHKIT INTEGRATION Phase reads your sleep, sunlight, exercise, and caffeine data from Apple Health to auto-verify nudges and show activity bars on your daily timeline. Phase never writes to HealthKit — your data stays yours. BUILT FOR FOCUS No charts. No dashboards. No social features. Phase does one thing and does it well — it fixes your sleep schedule. Your body has a clock. Phase helps you reset it. Terms of Use: https://www.theblackholecompany.com/termsConditions.html

Screenshots

Khalisthenics4 screens
Phase4 screens

Verdict

The call

The clearest difference is in-app purchases: Khalisthenics at none against Phase's 6. Khalisthenics also leads on update cadence (every 4 days vs every 5 weeks) and rating (5.0 vs 4.8). Phase's advantage is ratings volume (5 vs 1). On price, ads, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Phase sells 6 in-app purchases, starting at $0.99 per 7 days. Khalisthenics asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Khalisthenics holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Phase has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Khalisthenics ships an update every 4 days, Phase every 5 weeks. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Khalisthenics versus Phase: the parameters behind the verdict, then further details
ParameterKhalisthenicsPhase
PriceFreeFree
Rating5.0 (1 ratings) — better4.8 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings15 — better
Update frequencyEvery 4 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhoneiPhone, iPad — better
Requires iOS17.617.0 — better
Further details — not scored
Size82 MB32 MB
Age rating4+4+
DeveloperRyan KhalilYoussef Ismaili

Customer experience

Khalisthenics

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Phase

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Khalisthenics

No in-app purchases

6 purchases

Phase

Subscriptions2
  • Phase Pro$0.997 Days
  • Phase Pro$5.991 Year
One-time4
  • Lifetime Phase Pro$1.99
  • Pro$2.99
  • Lifetime Pro$4.99
Show 1 more
  • Phase Pro$9.99

Questions

Is Khalisthenics free?
Khalisthenics is free to download, with no in-app purchases.
Is Phase free?
Phase is free to download, with in-app purchases available.
Which has better reviews, Khalisthenics or Phase?
Khalisthenics is rated higher. Khalisthenics averages 5.0 out of 5 from 1 ratings, while Phase averages 4.8 from 5 ratings.
Do Khalisthenics or Phase have ads?
Neither Khalisthenics nor Phase shows ads.
Which is updated more often, Khalisthenics or Phase?
Khalisthenics ships an update every 4 days, and Phase every 5 weeks. Most recently, Khalisthenics was updated on October 24, 2026 and Phase on October 24, 2026.

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