Comparison

Strength by Mari vs TF STUDIO

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

Head to head
About

Strength by Mari

This app offers workout plans and instructional videos designed for women of all fitness levels to achieve their health and fitness goals. Track your progress with photos, strength metrics, and share updates with a supportive community.

Highlights
  • Workout plans for any schedule
  • Home or gym options
  • Daily unique workouts
  • Exercise instructional videos
  • Progress photo tracking
  • Strength and personal best tracking
  • Community support
Features
Read full description

Start your fitness journey with the Strength by Mari App! Based on her own 90lb weight loss journey, Mari has successfully built a community with over 100,000 women who have conquered their health and fitness goals. Starting today, you can get her best-selling workout plan in the palm of your hands with the Strength by Mari app. At home or at the gym; workout anywhere, anytime. Strength by Mari is designed for women of all fitness levels to achieve their fitness goals and build the best, healthiest version of themselves - both mentally and physically. Expect: -Workout plans to fit your schedule -Home OR gym plans -Daily unique workouts -Instructional videos for each exercise -Progress tracking Whether you’re at home or at the gym, Mari will be there every step of the way to help you progress the most you can each day. No worry, no excuses, just results. Track your progress: -Take progress photos in app -Track your strength and personal bests -Share updates with your social media Be ready to join a community of thousands of women motivating each other to achieve their fitness goals!

About

TF STUDIO

This app offers dynamic Pilates workouts designed for at-home use, focusing on sculpting and strengthening without bulk. It features a blend of classic Pilates with strength-based sequences, suitable for all levels and available live, on-demand, or as reformer classes.

Highlights
  • Dynamic Power Pilates method
  • Strength-based, flowing sequences
  • Live, on-demand, and reformer classes
  • Beginner to advanced workouts
  • Smart filters for class selection
  • Pregnancy-friendly and cycle-syncing options
Features
Read full description

Your at-home Pilates app for long, lean results. Access Power Pilates workouts that sculpt and strengthen, without the bulk. Start your 7-day free trial today. T — F Studio’s dynamic Power Pilates method blends classic Pilates with strength-based, flowing sequences using light weights, bands, and reformer-inspired moves. The result is a high-intensity, low-impact workout that tones, lengthens, and sculpts while reducing cortisol and stress. This is the Pilates app for LIVE, ON-DEMAND & REFORMER classes, anytime, anywhere. Created by Tasha Franken, Pilates expert & certified nutritionist, T — F Studio offers: • New classes weekly and reformer classes biweekly • Beginner to advanced workouts • Strength, cardio, pregnancy-friendly, cycle-syncing, and meditation classes • Smart filters for duration, body part, equipment, or intensity Whether you have 10 minutes or an hour, find online Pilates classes on demand designed to fit your life, body, and goals. Terms of Service: https://www.tashafranken.tv/tos Privacy Policy: https://www.tashafranken.tv/privacy

Screenshots

Strength by Mari4 screens
TF STUDIO4 screens

Verdict

The call

The clearest difference is review sentiment: TF STUDIO at 97% against Strength by Mari's 31%. TF STUDIO also leads on ads (none vs shown) and rating (4.9 vs 4.5). Strength by Mari's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (6.3K vs 337). On price, in-app purchases, 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. Strength by Mari sells 3 in-app purchases, starting at $11.99 per month and TF STUDIO sells 7 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

TF STUDIO holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Strength by Mari has 6.3K ratings behind it against 337, so its average is the more settled of the two. Written reviews point the same way: 31% of Strength by Mari's written reviews are positive against 97% of TF STUDIO's.

UpkeepUpdate frequency

Strength by Mari ships an update fortnightly, TF STUDIO every 2 months. The most recent releases landed on October 19, 2026 and October 22, 2026 respectively.

Scorecard6 real differences · 4 level
Strength by Mari versus TF STUDIO: the parameters behind the verdict, then further details
ParameterStrength by MariTF STUDIO
PriceFreeFree
Rating4.5 (6.3K ratings)4.9 (337 ratings) — better
Positive reviews31.2% of reviews97.4% of reviews — better
Number of ratings6.3K — better337
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple TV — better
Requires iOS14.0 — better16.6
Further details — not scored
Size104 MB81 MB
Age rating4+4+
DeveloperMari Fitness LLCFranken Worldwide Inc.

Customer experience

Strength by Mari

All ratings6,287 ratings
Positive88.3%
Neutral3.9%
Negative7.7%
Written reviews218 reviews
Positive31.2%
Neutral24.3%
Negative44.5%

TF STUDIO

All ratings332 ratings
Positive98.2%
Neutral0.3%
Negative1.5%
Written reviews232 reviews
Positive97.4%
Neutral0.4%
Negative2.2%

User reviews

Strength by Mari

From 6.3K App Store ratings

What we love

  • 🚀 Easy to follow workouts
  • 👍 Simple and intuitive interface
  • 💪 Effective for building strength
  • 📊 Ability to track progress and weights

Room to improve

  • 🐛 Frequent app crashes and glitches
  • 🔍 Difficulty finding and switching exercises
  • 🕰️ Lack of rest timers and workout planning features
  • 🖼️ Issues with saving and viewing progress photos

TF STUDIO

From 337 App Store ratings

What we love

  • 💪 Effective and challenging workouts
  • 🧘‍♀️ Calming and grounding instruction
  • 🔥 Visible body transformation results
  • 🤩 Enjoyable and motivating
  • 🧠 Holistic approach to health and wellness

Room to improve

  • 🐛 Occasional app glitches or video playback issues
  • 🔍 Difficulty finding specific workouts
  • 🕰️ Wish for more live/interactive classes

Bugs and requests

Strength by Mari

Reported bugs

4 issues
  • App crashes during workouts
  • Progress data and workout history not saving properly
  • Inconsistent performance and UI issues
  • Trouble logging in and accessing the app

Requested features

4 requests
  • Allow customization of workouts and ability to add exercises
  • Incorporate warm-up and cool-down routines
  • Provide more advanced and challenging workout options
  • Improve navigation and ability to preview future workouts

TF STUDIO

Reported bugs

2 issues
  • Some videos not playing properly
  • Occasional app crashes

Requested features

3 requests
  • Custom playlists or favorites feature
  • Improved video progress tracking
  • More streaming options for TV integration

In-app purchases

3 purchases

Strength by Mari

Subscriptions3
  • Monthly$11.991 Month
  • 6 Months$59.996 Months
  • Annually$99.991 Year
7 purchases

TF STUDIO

Subscriptions2
  • TF STUDIO Monthly7 Days trial$19.991 Month
  • TF STUDIO Yearly7 Days trial$179.991 Year
One-time5
  • T - F Studio - 999$9.99
  • T - F Studio - 1499$14.99
  • T - F Studio - 2099$20.99
Show 2 more
  • T - F Studio - 2999$29.99
  • T - F Studio - 19999$199.99

Questions

Is Strength by Mari free?
Strength by Mari is free to download, with in-app purchases available.
Is TF STUDIO free?
TF STUDIO is free to download, with in-app purchases available.
Which has better reviews, Strength by Mari or TF STUDIO?
TF STUDIO is rated higher. Strength by Mari averages 4.5 out of 5 from 6.3K ratings, while TF STUDIO averages 4.9 from 337 ratings.
Do Strength by Mari or TF STUDIO have ads?
Strength by Mari shows ads; TF STUDIO does not.
Which is updated more often, Strength by Mari or TF STUDIO?
Strength by Mari ships an update fortnightly, and TF STUDIO every 2 months. Most recently, Strength by Mari was updated on October 19, 2026 and TF STUDIO on October 22, 2026.

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