# Lactate Express vs Obseed

The clearest difference is in-app purchases: Obseed at none against Lactate Express's 4. Lactate Express's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lactate Express sells 4 in-app purchases, starting at $24.99 per month. Obseed asks for nothing beyond the download.

Lactate Express ships an update every 3 weeks, Obseed every 6 weeks. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Lactate Express | Obseed |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Subscription | — |
| Size | 133 MB | 6 MB |
| Requires iOS | **17.5** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [COPAtec GmbH](https://appshunter.io/developer/890381257) | [Daniel Metzing](https://appshunter.io/developer/1660773707) |

## What reviewers say

### Lactate Express

[App page](https://appshunter.io/ios/app/lactate-express/id1671640113)

This app provides precise lactate step-test data capture and analysis for endurance athletes and performance diagnosticians. It computes thresholds using scientifically recognized models and generates clear training zones, eliminating the need for manual spreadsheets. Professional reports can be generated and shared easily.

**Highlights:** Lactate step-test data capture, Bluetooth sensor integration, Multiple threshold analysis models, Automatic training zone calculation, Branded PDF report generation, Test comparison and trend tracking, Athlete roster management

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Teams (Monthly) | $24.99 | per month |
| Professionals (1 Month) | $44.99 | per month |
| Teams (Yearly) | $250.00 | per year |
| Professionals (Yearly) | $399.00 | per year |


### Obseed

[App page](https://appshunter.io/ios/app/obseed/id6499069171)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lactate Express free?

Lactate Express is free to download, with in-app purchases available.

### Is Obseed free?

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

### Do Lactate Express or Obseed have ads?

Neither Lactate Express nor Obseed shows ads.

### Which is updated more often, Lactate Express or Obseed?

Lactate Express ships an update every 3 weeks, and Obseed every 6 weeks. Most recently, Lactate Express was updated on October 12, 2026 and Obseed on October 6, 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.*