# WL Analysis vs SpiroFit

The clearest difference is rating: SpiroFit at 5.0 against WL Analysis's 4.3. SpiroFit also leads on review sentiment (100% vs 62%) and in-app purchases (none vs 1). WL Analysis's advantage is ratings volume (46 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. WL Analysis sells 1 one-off in-app purchase. SpiroFit asks for nothing beyond the download.

SpiroFit holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: WL Analysis has 46 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 62% of WL Analysis's written reviews are positive against 100% of SpiroFit's.

WL Analysis ships an update every 6 weeks, SpiroFit every 3 weeks. The most recent releases landed on September 30, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | WL Analysis | SpiroFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (46 ratings)](https://appshunter.io/ios/app/wl-analysis/id1541855037/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spirofit/id6475291331/reviews)** |
| Number of ratings | **46** | 1 |
| Positive reviews | 61.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 27 MB | 8 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Karol Smolak](https://appshunter.io/developer/1541855039) | [SENDSOR GmbH](https://appshunter.io/developer/1723823291) |

## What reviewers say

### WL Analysis

[App page](https://appshunter.io/ios/app/wl-analysis/id1541855037)

Analyze your weightlifting and powerlifting technique with this video analysis tool. It automatically detects the barbell and provides detailed insights into bar path, velocity, power, and force. Compare videos side-by-side or overlaid, with customizable playback and export options.

**Highlights:** Automatic barbell detection, Side-by-side video comparison, Overlay video comparison, Bar path visualization by metrics, Adjustable playback speed, Frame-by-frame playback, Export kinematic data to CSV

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra features | $8.99 | one-time |


### SpiroFit

[App page](https://appshunter.io/ios/app/spirofit/id6475291331)

Track key respiratory and heart metrics live during workouts like running or cycling. Analyze professional data for optimal training intensity. Suitable for coaches, professional athletes, and fitness enthusiasts.

**Highlights:** Live respiratory rate tracking, Live heart rate monitoring, Tidal volume measurement, O2 consumption tracking, CO2 output tracking, Professional data analysis, Real-time training feedback

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

**In-app purchases:** none


## Frequently asked questions

### Is WL Analysis free?

WL Analysis is free to download, with in-app purchases available.

### Is SpiroFit free?

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

### Which has better reviews, WL Analysis or SpiroFit?

SpiroFit is rated higher. WL Analysis averages 4.3 out of 5 from 46 ratings, while SpiroFit averages 5.0 from 1 ratings.

### Do WL Analysis or SpiroFit have ads?

Neither WL Analysis nor SpiroFit shows ads.

### Which is updated more often, WL Analysis or SpiroFit?

WL Analysis ships an update every 6 weeks, and SpiroFit every 3 weeks. Most recently, WL Analysis was updated on September 30, 2026 and SpiroFit 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.*