# Slip Shadowboxing vs Flexx

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.

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.

## The numbers

| Metric | Slip Shadowboxing | Flexx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/slip-shadowboxing/id6504508116/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 79 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hans Yadav](https://appshunter.io/developer/909818262) | [Ankit Priyadarshi](https://appshunter.io/developer/1824085646) |

## What reviewers say

### Slip Shadowboxing

[App page](https://appshunter.io/ios/app/slip-shadowboxing/id6504508116)

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:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $9.99 | one-time |


### Flexx

[App page](https://appshunter.io/ios/app/flexx-workout-planner/id6751598622)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $29.99 | per year |


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*