# STEC vs Muscle & Flow

The clearest difference is update cadence: Muscle & Flow at monthly against STEC's every 5 months. STEC's advantage is iOS requirement (13.0 vs 15). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

STEC ships an update every 5 months, Muscle & Flow monthly. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | STEC | Muscle & Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/stec/id1569205326/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 31 MB | 91 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sportsmens Tennis  Enrichment Center Inc](https://appshunter.io/developer/1569205328) | [Muscle & Flow](https://appshunter.io/developer/1694764222) |

## What reviewers say

### STEC

[App page](https://appshunter.io/ios/app/stec/id1569205326)

This app allows users to book tennis courts, check their account balance, and access club information. It serves as a central hub for managing tennis activities and club communications.

**Highlights:** Tennis court reservation, Account balance review, Club information access, Sports club management

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Muscle & Flow

[App page](https://appshunter.io/ios/app/muscle-and-flow/id1637484112)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is STEC free?

STEC is free to download, with no in-app purchases.

### Is Muscle & Flow free?

Muscle & Flow is free to download, with no in-app purchases.

### Do STEC or Muscle & Flow have ads?

Neither STEC nor Muscle & Flow shows ads.

### Which is updated more often, STEC or Muscle & Flow?

STEC ships an update every 5 months, and Muscle & Flow monthly. Most recently, STEC was updated on October 7, 2026 and Muscle & Flow on October 9, 2026.

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