Comparison

Flex Studioz vs Personal Trainer CRM

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

Head to head
About

Flex Studioz

Features
Read full description

Flex Studio is the regions largest assisted stretching and preventative physiotherapy studio, offering a unique wellness concept, injury preventing and assisted stretching sessions. We believe that stretching is a vital component of a balanced and healthy lifestyle. Flex Studio has built a strong reputation for personalized care and innovative wellness solutions. Whether you are an athlete, office worker, working or stay-at-home mom, wellness enthusiast, senior, junior, or just looking to move better, with one single-minded promise, Stretching Lives, Everyday.

About

Personal Trainer CRM

Features
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The app built only for personal trainers. Your clients, your schedule, and the money you're owed in one place, instead of four apps. WHO IT'S FOR Independent personal trainers, online coaches, and small studio owners running 15 to 80 clients from a phone. If your business lives in Notes, WhatsApp, a calendar, and Venmo, RosterOS pulls it into one place. Something always falls through those cracks. Usually it's revenue. SEE WHO OWES YOU Every session is a paid or unpaid line. Outstanding balances sit on your home screen, so you stop guessing who's behind. Collect in one tap, and watch a 12-month revenue trend build for your business and for each client. Most coaching apps bury payments or take a cut. Here, the money is the first thing you see, and we never touch it. ONE SCREEN PER CLIENT Goals, injuries, intake (PAR-Q and waiver), measurements, and payment history on a single screen. See 30-day consistency, total sessions, and lifetime revenue at a glance, plus a fitness level (Beginner, Intermediate, Advanced, Athlete, or your own tag). Import your whole roster from Contacts. BOOK YOUR WEEK Book training, assessment, consultation, or online sessions. Today, Upcoming, and Past tabs keep the week straight. Set recurring blocks (weekly, x4 through x26) and mirror sessions one way into your iOS Calendar. Reschedule or cancel in seconds. LOG A SESSION IN UNDER 10 SECONDS The moment a session ends, Quick Log opens: a quick note, the client's energy level, a pain flag, then the payment. Done before they reach the door, so nothing gets rebuilt from memory later. NEVER DROP A FOLLOW-UP The people you owe a message show up as due today on your dashboard. Every text and email is timestamped per client, and anyone who goes quiet for 7 or more days gets flagged, so you can pull them back before they cancel. SAVE AND ASSIGN PROGRAMS Save program shapes like Full Body Circuit or Lower Body Power, filter by Strength, Hypertrophy, Endurance, or Mobility, and assign them to a client with per-client edits. It's your programming tool, not a workout app your clients log into. GROW WITH PRO Pro unlocks unlimited clients, the Workout Builder, Revenue Insights, measurement charts over time, before-and-after progress photo timelines, and a clean, branded PDF progress report your client keeps. NO CLIENT APP. EVER. RosterOS is built for you, not your clients. They never download anything, never get a login, never get a notification from it. It works offline between sessions, on the gym floor, and syncs across your iPhone and iPad. Your client data stays in your account. We never sell it, and never share it with advertisers. Sign in with Apple, and delete your account from inside the app whenever you want. FREE, THEN PRO WHEN YOU GROW Start free with up to 15 active clients and the full workflow, no card required. RosterOS Pro is $19.99 per month or $149.99 per year (about $12 a month). The annual plan includes a 14-day free trial. Payment is charged to your Apple Account at purchase. Your subscription renews automatically unless you turn off auto-renew at least 24 hours before the end of the period. Manage or cancel anytime in your Apple Account settings. Prices may vary by region. Terms: https://rosteros.app/terms Privacy: https://rosteros.app/privacy Stop running your book out of a spreadsheet. Put your clients, your schedule, and your money in one app built for the way you actually work.

Screenshots

Flex Studioz3 screens
Personal Trainer CRM4 screens

Verdict

The call

The clearest difference is in-app purchases: Flex Studioz at none against Personal Trainer CRM's 2. Personal Trainer CRM's advantage is update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Personal Trainer CRM sells 2 in-app purchases, starting at $19.99 per month. Flex Studioz asks for nothing beyond the download.

UpkeepUpdate frequency

Flex Studioz ships an update every 2 months, Personal Trainer CRM weekly. Both last shipped on October 28, 2026.

Scorecard2 real differences ยท 4 level
Flex Studioz versus Personal Trainer CRM: the parameters behind the verdict, then further details
ParameterFlex StudiozPersonal Trainer CRM
PriceFreeFree
Update frequencyEvery 2 monthsWeekly โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.1 โ€” better16.0
Further details โ€” not scored
Size53 MB60 MB
Age rating17+4+
DeveloperFLEX STUDIO FITNESS CLUB L.L.CAHMET DUMAN

In-app purchases

None

Flex Studioz

No in-app purchases

2 purchases

Personal Trainer CRM

Subscriptions2
  • RosterOS Pro Monthly$19.991 Month
  • RosterOS Pro Annual14 Days trial$149.991 Year

Questions

Is Flex Studioz free?
Flex Studioz is free to download, with no in-app purchases.
Is Personal Trainer CRM free?
Personal Trainer CRM is free to download, with in-app purchases available.
Do Flex Studioz or Personal Trainer CRM have ads?
Neither Flex Studioz nor Personal Trainer CRM shows ads.
Which is updated more often, Flex Studioz or Personal Trainer CRM?
Flex Studioz ships an update every 2 months, and Personal Trainer CRM weekly. Most recently, Flex Studioz was updated on October 28, 2026 and Personal Trainer CRM on October 28, 2026.

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