Comparison

Central Dynamics Spaces vs HourglassAI

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

Head to head
About

Central Dynamics Spaces

Features
Read full description

In a conscious move towards building 'safe' and 'controlled access spaces,' all Central Dynamics spaces are accessible only to members enrolling for private or semi private training with us.Central Dynamics spaces are designed for inclusivity with curated workouts detailed to every breath and every last movement.  Let your guards down and feel comfortable in your skin. Private and semi-private classes at Central Dynamics are an experience. Designed to build the best version of you. Equipment that's curated by industry's best minds. Put together to create an immersive experience that seamlessly transitions between a variety of training methods ranging from Spin, Reformer Pilates, Sculpt, Signature Yoga, and Strength & Conditioning classes and personal training. Our STUDIOs and CLUBs are not just workout spaces. They are havens where you can let your guard down and feel comfortable in expressing yourself.  In an industry first, Central Dynamics is proudly a 'women led organisation'. Safety, comfort and an immersive member experience is at the pinnacle of everything we do.

About

HourglassAI

This app uses AI to create personalized 30-day fitness and nutrition plans based on a single photo. It analyzes body composition and tailors workouts, sets, reps, and macro targets to your specific goals and dietary preferences.

Highlights
  • AI body composition analysis from photo
  • Personalized 30-day workout plans
  • Customizable macro targets
  • Flexible training day scheduling
  • Dietary preference accommodation
  • Progressive overload implementation
Features
Read full description

Stop guessing at the gym. Scan, find your growth zone, and know exactly what to lift next. HourglassAI turns three quick photos into an Hourglass Score and names the area with the most room to grow: upper glute, side glute, center glute or lower glute. Then it builds a 4-week glute plan around it, made for your gym, your equipment and your schedule, and coaches you set by set. YOUR FIRST SCAN IS FREE Take the quiz, scan, and see your Hourglass Score and growth zone before you pay anything. WHY IT WORKS - Built around your growth zone: it gets extra work every week, without making your sessions longer. - Progressive overload done for you: hit your reps and your next target goes up. Miss them and it holds. No spreadsheets, no guessing. - Proven glute builders: hip thrusts, RDLs, squats, split squats and side-glute work, picked for your level. - Deload weeks and comebacks after a break are built in. MADE FOR YOUR LIFE - Gym or home: barbell, dumbbells, machines, cables, bands or bodyweight. - 2 to 6 days a week, 30 to 75 minutes a session. - Easier swaps for sore knees, lower back or hips. - Daily protein and calorie targets for your goal, with foods that fit vegan, vegetarian, pescatarian, dairy-free and gluten-free diets. SEE YOUR PROGRESS - Log a set in two taps, even offline in the gym. - Watch your lifts climb on the Progress tab. - Re-scan every two weeks to update your score. SCAN YOUR WAY Use the mirror, a hands-free voice timer with your front or back camera, or photos you already have. A framing box shows you exactly where to stand. YOUR PHOTOS STAY PRIVATE Photos are analyzed and never stored. Only your scores are saved. Delete your account and all your data any time from the Me tab. HourglassAI is for adults 18 and over. Your score is an estimate from your photos, not a measurement or a medical assessment. SUBSCRIPTION Your scan, your score and a look at your plan are free. Unlock your full 4-week plan, set-by-set coaching, re-scans and new plans with HourglassAI Premium: - Annual: $89.99/year (about $7.50 a month) - Monthly: $14.99/month Prices are in USD and may vary by country. Payment is charged to your Apple ID when you confirm the purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your Apple ID settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ HourglassAI gives fitness guidance, not medical advice. Check with a doctor before starting a new program, especially if you are pregnant or have an injury.

Screenshots

Central Dynamics Spaces4 screens
HourglassAI4 screens

Verdict

The call

The clearest difference is in-app purchases: Central Dynamics Spaces at none against HourglassAI's 2. On price, update cadence, ads 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. HourglassAI sells 2 in-app purchases, starting at $14.99 per month. Central Dynamics Spaces asks for nothing beyond the download.

UpkeepUpdate frequency

Central Dynamics Spaces ships an update every 2 months, HourglassAI every 3 months. The most recent releases landed on October 6, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 9 level
Central Dynamics Spaces versus HourglassAI: the parameters behind the verdict, then further details
ParameterCentral Dynamics SpacesHourglassAI
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.114.0 — better
Further details — not scored
Size86 MB16 MB
Age rating4+17+
DeveloperSpotbee, Inc.Franco Stanzione

In-app purchases

None

Central Dynamics Spaces

No in-app purchases

2 purchases

HourglassAI

Subscriptions2
  • Monthly Subscription3 Days trial$14.991 Month
  • Annual Subscription$89.991 Year

Questions

Is Central Dynamics Spaces free?
Central Dynamics Spaces is free to download, with no in-app purchases.
Is HourglassAI free?
HourglassAI is free to download, with in-app purchases available.
Do Central Dynamics Spaces or HourglassAI have ads?
Neither Central Dynamics Spaces nor HourglassAI shows ads.
Which is updated more often, Central Dynamics Spaces or HourglassAI?
Central Dynamics Spaces ships an update every 2 months, and HourglassAI every 3 months. Most recently, Central Dynamics Spaces was updated on October 6, 2026 and HourglassAI on October 28, 2026.

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