Slip Shadowboxing vs Flexx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Audio-guided boxing moves
- Left/right ear cues for side-specific actions
- Simple, minimalist interface
- Headphone-based instruction
- Variety of boxing techniques
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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.
Flexx
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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
Verdict
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
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.
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.
| Parameter | Slip Shadowboxing | Flexx |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 65 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Hans Yadav | Ankit Priyadarshi |
In-app purchases
Slip Shadowboxing
- Pro$9.99
Flexx
- Monthly Subscription$9.991 Month
- Yearly Subscription3 Days trial$29.991 Year









