# My Harris vs Schlummer

The clearest difference is in-app purchases: My Harris at none against Schlummer's 3. My Harris also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.0). Schlummer's advantage is update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Schlummer sells 3 in-app purchases, starting at $3.99 per month. My Harris asks for nothing beyond the download.

My Harris ships an update every 2 months, Schlummer every 3 weeks. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | My Harris | Schlummer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (64 ratings)](https://appshunter.io/ios/app/my-harris/id1612768027/reviews)** | — |
| Number of ratings | **64** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 121 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Navico Group Americas LLC](https://appshunter.io/developer/804640355) | [Levin David Schwab](https://appshunter.io/developer/1896432297) |

## What reviewers say

### My Harris

[App page](https://appshunter.io/ios/app/my-harris/id1612768027)

Enhance your pontoon boating experience with this app. Log trips, save memories, and plan excursions. Access maintenance tips, checklists, and weather forecasts to captain with confidence.

**Highlights:** Trip logging and sharing, Weather information and forecasting, FAQs, tips, and checklists, Boat and marina information storage, Mercury VesselView Mobile integration, Owner-only promotions

**In-app purchases:** none


### Schlummer

[App page](https://appshunter.io/ios/app/schlummer-sleep-tracker/id6783421618)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Schlummer Pro Monthly | $3.99 | per month |
| Schlummer Pro Yearly | $24.99 | per year |
| Schlummer Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is My Harris free?

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

### Is Schlummer free?

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

### Do My Harris or Schlummer have ads?

Schlummer shows ads; My Harris does not.

### Which is updated more often, My Harris or Schlummer?

My Harris ships an update every 2 months, and Schlummer every 3 weeks. Most recently, My Harris was updated on October 24, 2026 and Schlummer on October 14, 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.*