# ISF Watchkeeper 4 vs XLSX Sheets

The clearest difference is in-app purchases: ISF Watchkeeper 4 at none against XLSX Sheets's 10. ISF Watchkeeper 4 also leads on review sentiment (50% vs 22%) and update cadence (every 10 days vs monthly). XLSX Sheets's advantage is chart position (#158 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. XLSX Sheets sells 10 in-app purchases, starting at $1.99 per month. ISF Watchkeeper 4 asks for nothing beyond the download.

ISF Watchkeeper 4 ships an update every 10 days, XLSX Sheets monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | ISF Watchkeeper 4 | XLSX Sheets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (3.3K ratings)](https://appshunter.io/ios/app/xlsx-sheets-edit-spreadsheet/id1672553988/reviews)** |
| Number of ratings | — | **3.3K** |
| Positive reviews | **50.0% of reviews** | 22.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#158** |
| Size | 39 MB | 222 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IT Energy](https://appshunter.io/developer/1406834686) | [Rhophi Analytics LLP](https://appshunter.io/developer/1647365609) |

## What reviewers say

### ISF Watchkeeper 4

[App page](https://appshunter.io/ios/app/isf-watchkeeper-4/id1517644023)

This app helps seafarers track and manage their work and rest hours, ensuring compliance with international maritime regulations. It automatically tests timesheets against STCW and MLC 2006, providing real-time alerts for non-conformities and offering a cloud-based solution for easy access and team collaboration.

**Highlights:** Automatic compliance testing, Predictive calculation engine, Real-time alerts and notifications, Live compliance status monitoring, Electronic timesheet signing, Cloud-based collaboration, Offline functionality

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

**In-app purchases:** none


### XLSX Sheets

[App page](https://appshunter.io/ios/app/xlsx-sheets-edit-spreadsheet/id1672553988)

**Currently charting:** #158 Top Free · Productivity, #180 Top Grossing · Productivity (US App Store)

Create, edit, and manage Excel-compatible spreadsheets on your mobile device. Offers powerful editing tools, formula assistance, data visualization, and collaboration features. Work offline and import/export data in various formats.

**Highlights:** Edit, create, and manage XLS sheets, Excel-compatible formula builder, Data visualization tools, Real-time collaboration, Advanced data analysis, Offline access, Import/export data

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Plan | $1.99 | per month |
| Premium Monthly | $4.99 | per month |
| Pro Weekly | $5.99 | per 7 days |
| Premium Monthly | $6.99 | per month |
| Premium Weekly | $7.99 | per 7 days |
| Premium Weekly | $7.99 | per 7 days |
| Pro Weekly Plan | $7.99 | per 7 days |
| Pro Weekly | $9.99 | per 7 days |
| Premium Monthly | $12.99 | per month |
| Premium Yearly | $29.99 | per year |

**What reviewers like**

- ⭐ Useful app
- ⭐ Recommended

**What reviewers complain about**

- 🚫 Paid subscription required for basic functionality
- 🚫 Ads and watermarks on content
- 🐛 Crashes and freezes
- 🚫 Difficult to use and unintuitive interface
- 🚫 Subscription difficult to cancel

**Reported bugs**

- App crashes on launch
- Unable to open or edit files

**Requested features**

- Option to cancel subscription
- Improve stability and performance


## Frequently asked questions

### Is ISF Watchkeeper 4 free?

ISF Watchkeeper 4 is free to download, with no in-app purchases.

### Is XLSX Sheets free?

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

### Do ISF Watchkeeper 4 or XLSX Sheets have ads?

Neither ISF Watchkeeper 4 nor XLSX Sheets shows ads.

### Which is updated more often, ISF Watchkeeper 4 or XLSX Sheets?

ISF Watchkeeper 4 ships an update every 10 days, and XLSX Sheets monthly. Most recently, ISF Watchkeeper 4 was updated on November 3, 2026 and XLSX Sheets on November 4, 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.*