Comparison

Stackrep vs PlayFit Kids

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

Head to head
About

Stackrep

Features
Read full description

Stack Your Reps. Build Your Habit. No bloated workout plans. No meal tracking. No calorie counting. Just a clean, focused way to build a daily movement habit — and actually stick with it. Track your daily exercise sets across muscle groups with a single tap. Set flexible weekly goals that fit your real life. Stay consistent, not extreme. Your rules, your schedule. Set different targets for each day of the week. Go harder on Tuesdays, rest on Sundays, ease up on Wednesdays — whatever works for you. Mark rest days, adjust sets per category, and let the app adapt to your rhythm. See your consistency grow. A color-coded calendar shows your progress at a glance. Weekly and monthly averages, category breakdowns, and personal records help you spot patterns and stay motivated — without obsessing over numbers. Make it yours. Add, edit, reorder, and delete exercise categories. Chest, back, yoga, swimming, stretching — build the tracker around what you actually do. Simple by design. Tap to log a set. That's it. No sign-ups, no social features, no noise. Just you and your reps, day after day. Build the habit. Stack the reps. Show up for yourself.

About

PlayFit Kids

This app makes fitness fun for kids aged 8-12 with progressive bodyweight exercises and a virtual buddy. It focuses on building strength and healthy habits through engaging gameplay, customizable characters, and nutrition tips.

Highlights
  • 50 progressive exercise levels
  • Virtual buddy character training
  • Customizable character outfits and rooms
  • Celebration certificates for level completion
  • Kid-friendly nutrition tips and recipes
  • Animated exercise demonstrations
Read full description

PlayFit Kids makes getting active genuinely fun for children ages 8–12. Through 50 progressive levels of simple bodyweight exercises—no equipment needed—kids build strength, coordination, and healthy habits while playing alongside their very own buddy, Jak. WHY PARENTS LOVE IT • Made for kids, safely. No accounts, sign-up, chat, or way to communicate with strangers. • Privacy first. The app does not ask for or collect personal information about your child. Names, progress, workouts, and achievements are saved only on the device. • Completely ad-free on iPhone and iPad. No third-party advertisements are displayed or initialized in the iOS app. • Encourages real movement through short, achievable workout sessions. WHY KIDS LOVE IT • Conquer 50 levels, from first-day Beginner all the way to PlayFit GOAT. • Earn a celebration certificate after completing each level. • Train Jak! Use credits earned from workouts to strengthen Jak’s muscles and restore his energy. • Customize Jak with 8 outfits and 7 themed rooms. • Enjoy fun seasonal surprises throughout the year. CREATE YOUR OWN WORKOUT Kids can choose their favorite PlayFit moves, arrange them in order, and create a custom workout. Every family can create and fully use one custom workout for free—including editing it, completing it, and tracking personal records. Parents can optionally unlock PlayFit Kids Plus with a one-time purchase to create unlimited custom workouts. There is no subscription, and all purchases and restores are protected by a Parents Only challenge. EAT WELL, TOO The built-in Eat Well section includes kid-friendly nutrition guidance and 16 simple, step-by-step recipes children can follow. SIMPLE, KID-SIZED WORKOUTS Every exercise includes a clear animated demonstration and easy instructions showing exactly what to do—push-ups, squats, jumps, planks, and more—so kids can follow each move with confidence. PlayFit Kids turns exercise into an adventure: complete levels, collect rewards, create workouts, and grow stronger one fun session at a time. Questions or feedback? Email us at kingdomelectfitness@gmail.com—we’d love to hear from you.

Screenshots

Stackrep4 screens
PlayFit Kids4 screens

Verdict

The call

The clearest difference is update cadence: Stackrep at every 2 weeks against PlayFit Kids's every 4 weeks. PlayFit Kids's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases 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. Stackrep sells 2 one-off in-app purchases and PlayFit Kids sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Stackrep ships an update every 2 weeks, PlayFit Kids every 4 weeks. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 8 level
Stackrep versus PlayFit Kids: the parameters behind the verdict, then further details
ParameterStackrepPlayFit Kids
PriceFreeFree
Rating—5.0 (41 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—41 — better
Update frequencyEvery 2 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size1 MB180 MB
Age rating4+4+
DeveloperArpad GyepesJeanice Henderson

In-app purchases

2 purchases

Stackrep

One-time2
  • Premium UnlockFree
  • 60-Day Free TrialFree
1 purchases

PlayFit Kids

One-time1
  • PlayFit Kids Plus$2.99

Questions

Is Stackrep free?
Stackrep is free to download, with in-app purchases available.
Is PlayFit Kids free?
PlayFit Kids is free to download, with in-app purchases available.
Do Stackrep or PlayFit Kids have ads?
Neither Stackrep nor PlayFit Kids shows ads.
Which is updated more often, Stackrep or PlayFit Kids?
Stackrep ships an update every 2 weeks, and PlayFit Kids every 4 weeks. Most recently, Stackrep was updated on November 5, 2026 and PlayFit Kids on November 10, 2026.

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