Comparison

Slip Shadowboxing vs Flexx

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

Head to head
About

Slip Shadowboxing

This app guides you through shadowboxing workouts using audio cues. It directs you to perform specific punches and defensive moves, sometimes indicating which side of your body to use.

Highlights
  • Audio-guided boxing moves
  • Left/right ear cues for side-specific actions
  • Simple, minimalist interface
  • Headphone-based instruction
  • Variety of boxing techniques
Features
Read full description

Simple, minimal, shadowboxing app. Put in your headphones. Press Start. Box. Audio cues will tell you which move to perform (e.g. cross, hook, slip). Sometimes moves will be played in your left or right ear. Perform the move on that side. For example, "hook" in your left ear means left hook. "Slip" in your right ear means slip right.

About

Flexx

Features
Read full description

Flexx is built for one purpose: to help you become stronger, more disciplined, and more consistent in your training. It removes the clutter and complexity of traditional fitness apps, giving you a simple way to log your workouts and focus on steady progress. With Flexx, tracking your sets, reps, and weights is fast and effortless. Every workout is saved in your history, allowing you to see exactly how far you’ve come and where you need to push harder. Over time, these small improvements add up, turning discipline into results you can see and feel. Unlike apps that overwhelm you with features you do not need, Flexx is designed to stay out of your way. It is minimal, clean, and built to support your training, not distract you from it. Whether you are just starting your fitness journey or pushing toward new personal records, Flexx gives you a clear path forward. If you want a workout tracker that keeps things simple, helps you stay consistent, and shows your progress without the noise, Flexx is the tool for you. Important Info: Flexx is a paid app with auto-renewing subscriptions. To access the app's core functionalities you need to have an active subscription. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/ascendprivacypolicy/home

Screenshots

Slip Shadowboxing3 screens
Flexx3 screens

Verdict

The call

The clearest difference is update cadence: Flexx at every 2 days against Slip Shadowboxing's every 5 days. Slip Shadowboxing's advantage is iOS requirement (13.4 vs 15.6). 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. Slip Shadowboxing sells 1 one-off in-app purchase and Flexx sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Slip Shadowboxing ships an update every 5 days, Flexx every 2 days. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 7 level
Slip Shadowboxing versus Flexx: the parameters behind the verdict, then further details
ParameterSlip ShadowboxingFlexx
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.4 — better15.6
Further details — not scored
Size65 MB79 MB
Age rating4+4+
DeveloperHans YadavAnkit Priyadarshi

In-app purchases

1 purchases

Slip Shadowboxing

One-time1
  • Pro$9.99
2 purchases

Flexx

Subscriptions2
  • Monthly Subscription$9.991 Month
  • Yearly Subscription3 Days trial$29.991 Year

Questions

Is Slip Shadowboxing free?
Slip Shadowboxing is free to download, with in-app purchases available.
Is Flexx free?
Flexx is free to download, with in-app purchases available.
Do Slip Shadowboxing or Flexx have ads?
Neither Slip Shadowboxing nor Flexx shows ads.
Which is updated more often, Slip Shadowboxing or Flexx?
Slip Shadowboxing ships an update every 5 days, and Flexx every 2 days. Most recently, Slip Shadowboxing was updated on October 21, 2026 and Flexx on October 4, 2026.

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