# Simple Zones vs Stromno

The clearest difference is price: Simple Zones at Free against Stromno's $4.99. Simple Zones also leads on rating (4.0 vs 3.1) and update cadence (monthly vs every 3 months). Stromno's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 15.4). On review sentiment, ratings volume, ads and device support there is nothing between them.

Simple Zones is free to download; Stromno costs $4.99 up front. Simple Zones sells 2 one-off in-app purchases. Stromno asks for nothing beyond the download.

Simple Zones holds the better App Store score, 4.0 against 3.1. Both are backed by a comparable volume of ratings — 50 and 24 respectively. Written reviews complicate that: 55% of Simple Zones's written reviews are positive against 57% of Stromno's, so the app with the better star average is not the one people write more warmly about.

Simple Zones ships an update monthly, Stromno every 3 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Simple Zones | Stromno |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.0 (50 ratings)](https://appshunter.io/ios/app/simple-zones/id1533922808/reviews)** | [3.1 (24 ratings)](https://appshunter.io/ios/app/stromno/id1538966480/reviews) |
| Number of ratings | **50** | 24 |
| Positive reviews | 54.8% of reviews | **57.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 18 MB | 1 MB |
| Requires iOS | 15.4 | **13.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Bred Ventures Inc](https://appshunter.io/developer/897222461) | [Yaroslav Hryniuk](https://appshunter.io/developer/1538966482) |

## What reviewers say

### Simple Zones

[App page](https://appshunter.io/ios/app/simple-zones/id1533922808)

Track your workouts in real-time using heart rate zone training. Get instant feedback on your performance to optimize intensity and achieve your fitness goals. Supports Apple Watch and Bluetooth heart rate monitors.

**Highlights:** Real-time heart rate zone visualization, Apple Watch and Bluetooth HRM support, Customizable zone models, Apple Health integration, Workout data syncing, Activity ring tracking

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zones Pro | $4.99 | one-time |
| Zones Pro | $9.99 | one-time |


### Stromno

[App page](https://appshunter.io/ios/app/stromno/id1538966480)

Broadcast your real-time heart rate from your Apple Watch to live streams on platforms like Twitch and YouTube. Easily set up a customizable widget or overlay for your stream with a simple login code.

**Highlights:** Heart rate streaming from Apple Watch, Live stream integration (Twitch, YouTube), Customizable widget/overlay designs, Easy 1-minute setup, OBS, Twitch Studio, XSplit, Streamlabs OBS compatible, Integrates with Apple Health

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Simple Zones free?

Simple Zones is free to download, with in-app purchases available.

### Is Stromno free?

Stromno costs $4.99, with no in-app purchases.

### Which has better reviews, Simple Zones or Stromno?

Simple Zones is rated higher. Simple Zones averages 4.0 out of 5 from 50 ratings, while Stromno averages 3.1 from 24 ratings.

### Do Simple Zones or Stromno have ads?

Neither Simple Zones nor Stromno shows ads.

### Which is updated more often, Simple Zones or Stromno?

Simple Zones ships an update monthly, and Stromno every 3 months. Most recently, Simple Zones was updated on October 24, 2026 and Stromno on October 29, 2026.

---

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