Comparison

SuperSlowTrainingTimer vs TruFIT20 Studio

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

Head to head
About

SuperSlowTrainingTimer

This app guides you through slow training exercises with voice and screen prompts for lifting, holding, and lowering. Create custom training menus with adjustable repetitions, sets, and intervals. Supports background operation and dark mode for convenient use during workouts.

Highlights
  • Voice and screen counting for movements
  • Customizable training menus
  • Adjustable reps, sets, and intervals
  • Background operation support
  • Dark mode display
  • Silent mode operation
Features
Read full description

SuperSlowTrainingTimer is a timer application with a read-out function dedicated to slow training. It counts the movements that are important in slow training, such as lifting slowly, holding, and lowering slowly which are important in slow training, are counted by voice and screen display. You can create as many training menus as you want. The number of seconds, number of repetitions, interval time, and number of sets for each movement can be set freely. Dark mode display, background operation, and operation without releasing silent mode are also supported. It also supports dark mode display, background operation, and operation without releasing silent mode. It can be used for weight training, muscle training at home, toning up a lax body, maintaining muscle strength, and rehabilitation. It can be used for weight training, muscle training at home, toning up a lax body, maintaining muscle strength, rehabilitation, and as a reliable companion for slow training. <What is "slow training"?> Slow training is a training method that allows you to increase the load on your muscles by performing muscle training in slow motion. Slow training is a training method that increases the load on the muscles by training them in slow motion. Even with a small number of repetitions, the effect is tremendous. By moving slowly, the load on the joints is also reduced, thus reducing the risk of injury. <The following items can be set> ・The number of seconds to count down to the start  ・Name of the training menu ・Number of seconds to move (raise or lower) ・Number of seconds to hold ・Number of seconds to return (lower/lower/up) ・Number of repetitions ・Interval between reps ・Number of sets ・Interval between sets ・Counting voice <Features of the app> ・Count each movement (move, hold, return) with voice and display. ・You can create as many training menus as you like. ・You can choose the type of voice that counts. ・Push notifications for today's workout. ・Tap the notification and start working out immediately. ・Cool dark mode display. ・Can be used without deactivating silent mode

About

TruFIT20 Studio

Features
Read full description

Experience the power of the TruFit20 method—the ultimate solution for busy individuals seeking maximum results in minimum time. Our app is your gateway to a scientifically-backed, 20-minute slow-motion high-intensity strength training protocol designed to transform your body and your health without spending hours in the gym. With the TruFit20 app, managing your fitness journey is seamless and efficient: View Real-Time Class Schedules: Stay up to date with the latest session availability. Our live schedule ensures you can find a time that fits your busy lifestyle, allowing you to plan your week with precision. Schedule Appointments & Sessions: Book your personalized training sessions with just a few taps. Whether you are a regular or fitting in a quick workout between meetings, our booking system makes it easier than ever to stay committed to your goals. Access On-Demand Video Libraries: Can't make it to the studio? Take TruFit20 with you. Access our library of On-Demand content to stay active, learn proper form, and maintain your momentum from anywhere in the world. Manage Memberships & Profiles: Take full control of your account. Update your payment methods, track your membership status, and manage your personal profile settings directly within the app for a completely frictionless experience. Our methodology focuses on slow-motion weight training that maximizes muscle fatigue while minimizing the risk of injury. It is perfect for those who value their time and their joints. By tracking your progress and staying connected with our community through this app, you are choosing a smarter way to build strength, increase metabolic rate, and improve overall longevity. Join the TruFit20 movement today and discover how 20 minutes can change your life.

Screenshots

SuperSlowTrainingTimer4 screens
TruFIT20 Studio4 screens

Verdict

The call

The clearest difference is in-app purchases: TruFIT20 Studio at none against SuperSlowTrainingTimer's 1. TruFIT20 Studio also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.0). SuperSlowTrainingTimer's advantage is update cadence (every 3 weeks vs every 4 months). On price 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. SuperSlowTrainingTimer sells 1 one-off in-app purchase. TruFIT20 Studio asks for nothing beyond the download.

UpkeepUpdate frequency

SuperSlowTrainingTimer ships an update every 3 weeks, TruFIT20 Studio every 4 months. The most recent releases landed on October 23, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
SuperSlowTrainingTimer versus TruFIT20 Studio: the parameters behind the verdict, then further details
ParameterSuperSlowTrainingTimerTruFIT20 Studio
PriceFreeFree
Rating3.0 (4 ratings) — better—
Positive reviews90.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.016.4 — better
Further details — not scored
Size12 MB122 MB
Age rating4+17+
DeveloperKENICHI YAMAMOTOSutra Fitness, Inc.

In-app purchases

1 purchases

SuperSlowTrainingTimer

One-time1
  • Remove ADs$3.99
None

TruFIT20 Studio

No in-app purchases

Questions

Is SuperSlowTrainingTimer free?
SuperSlowTrainingTimer is free to download, with in-app purchases available.
Is TruFIT20 Studio free?
TruFIT20 Studio is free to download, with no in-app purchases.
Do SuperSlowTrainingTimer or TruFIT20 Studio have ads?
SuperSlowTrainingTimer shows ads; TruFIT20 Studio does not.
Which is updated more often, SuperSlowTrainingTimer or TruFIT20 Studio?
SuperSlowTrainingTimer ships an update every 3 weeks, and TruFIT20 Studio every 4 months. Most recently, SuperSlowTrainingTimer was updated on October 23, 2026 and TruFIT20 Studio on October 4, 2026.

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