# optrel vs ErgSpeed Rowing Logbook

The clearest difference is in-app purchases: optrel at none against ErgSpeed Rowing Logbook's 3. optrel also leads on iOS requirement (12.2 vs 26.0). ErgSpeed Rowing Logbook's advantage is update cadence (every 9 days vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. ErgSpeed Rowing Logbook sells 3 in-app purchases, starting at $4.99 per month. optrel asks for nothing beyond the download.

optrel ships an update every 6 months, ErgSpeed Rowing Logbook every 9 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | optrel | ErgSpeed Rowing Logbook |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 207 MB | 4 MB |
| Requires iOS | **12.2** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [optrel tec ag](https://appshunter.io/developer/1549530923) | [Sports Stats Limited](https://appshunter.io/developer/1481193925) |

## What reviewers say

### optrel

[App page](https://appshunter.io/ios/app/optrel/id1549530921)

**Features:** macOS Compatibility

**In-app purchases:** none


### ErgSpeed Rowing Logbook

[App page](https://appshunter.io/ios/app/ergspeed-rowing-logbook/id6447811175)

Log and analyze indoor rowing workouts with detailed metrics, powerful calculators, and visual progress tracking. Features include AI-powered data scanning, performance charts, and race planning tools to help you train smarter and achieve your goals.

**Highlights:** Log rowing workouts with detailed metrics, Calculate target splits for any distance/time, AI-powered data scanning from monitors, Performance charts and activity heatmap, Year in Pixels training visualization, Power profile analysis, Race planner with segment splits

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $24.99 | per year |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is optrel free?

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

### Is ErgSpeed Rowing Logbook free?

ErgSpeed Rowing Logbook is free to download, with in-app purchases available.

### Do optrel or ErgSpeed Rowing Logbook have ads?

Neither optrel nor ErgSpeed Rowing Logbook shows ads.

### Which is updated more often, optrel or ErgSpeed Rowing Logbook?

optrel ships an update every 6 months, and ErgSpeed Rowing Logbook every 9 days. Most recently, optrel was updated on October 10, 2026 and ErgSpeed Rowing Logbook on October 8, 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.*