# Selfloops Spark vs Stromno

The clearest difference is price: Selfloops Spark at Free against Stromno's $4.99. Selfloops Spark also leads on update cadence (every 2 weeks vs every 3 months). Stromno's advantage is in-app purchases (none vs 1) and review sentiment (57% vs 26%). On ratings volume, ads and device support there is nothing between them.

Selfloops Spark is free to download; Stromno costs $4.99 up front. Selfloops Spark sells 1 in-app purchase, starting at $69.99 per year. Stromno asks for nothing beyond the download.

Stromno holds the better App Store score, 3.1 against 2.7. Both are backed by a comparable volume of ratings — 13 and 24 respectively. Written reviews point the same way: 26% of Selfloops Spark's written reviews are positive against 57% of Stromno's.

Selfloops Spark ships an update every 2 weeks, Stromno every 3 months. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Selfloops Spark | Stromno |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [2.7 (13 ratings)](https://appshunter.io/ios/app/selfloops-spark/id1282997660/reviews) | **[3.1 (24 ratings)](https://appshunter.io/ios/app/stromno/id1538966480/reviews)** |
| Number of ratings | 13 | **24** |
| Positive reviews | 25.9% of reviews | **57.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 44 MB | 1 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [SELFLOOPS SNC DI DEL ROSSO CHRISTIAN E RIBICHINI PIERO](https://appshunter.io/developer/911739721) | [Yaroslav Hryniuk](https://appshunter.io/developer/1538966482) |

## What reviewers say

### Selfloops Spark

[App page](https://appshunter.io/ios/app/selfloops-spark/id1282997660)

This app helps athletes and fitness enthusiasts track, analyze, and optimize their workouts. It offers personalized training plans, goal setting, and performance insights. Connect with coaches and other users for motivation and feedback.

**Highlights:** Workout tracking and analysis, Fitness challenges and goal setting, Personalized training plans, Heart rate monitoring, RPE logging, Data syncing with Apple Health, Advanced performance analytics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Athlete Premium | $69.99 | per year |


### 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 Selfloops Spark free?

Selfloops Spark 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, Selfloops Spark or Stromno?

Stromno is rated higher. Selfloops Spark averages 2.7 out of 5 from 13 ratings, while Stromno averages 3.1 from 24 ratings.

### Do Selfloops Spark or Stromno have ads?

Neither Selfloops Spark nor Stromno shows ads.

### Which is updated more often, Selfloops Spark or Stromno?

Selfloops Spark ships an update every 2 weeks, and Stromno every 3 months. Most recently, Selfloops Spark was updated on September 26, 2026 and Stromno on September 23, 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.*