# Duty shift vs ToneLogger

The clearest difference is in-app purchases: ToneLogger at none against Duty shift's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Duty shift sells 1 one-off in-app purchase. ToneLogger asks for nothing beyond the download.

Duty shift ships an update every 9 days, ToneLogger weekly. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Duty shift | ToneLogger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duty-shift/id6755762933/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Freemium | — |
| Size | 9 MB | 71 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Mateusz Moc](https://appshunter.io/developer/1856182326) | [Legit Logic Labs, LLC](https://appshunter.io/developer/1886447275) |

## What reviewers say

### Duty shift

[App page](https://appshunter.io/ios/app/duty-shift/id6755762933)

Manage your maritime crew's watch schedules and logbook with this assistant app. It automates rotations, tracks GPS positions, and sends timely notifications for watch changes. Personalize crew profiles and export professional documents in the Pro version.

**Highlights:** Smart schedule generation (Fixed or Fair Rotation), Automatic GPS logbook with route history, Watch change notifications, Personalized "That's Me" timer, Crew list with emoji avatars, PDF export of crew lists and agendas (Pro), Voyage file sharing (Pro)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version | $3.99 | one-time |


### ToneLogger

[App page](https://appshunter.io/ios/app/tonelogger/id6772133608)

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

**In-app purchases:** none


## Frequently asked questions

### Is Duty shift free?

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

### Is ToneLogger free?

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

### Do Duty shift or ToneLogger have ads?

Neither Duty shift nor ToneLogger shows ads.

### Which is updated more often, Duty shift or ToneLogger?

Duty shift ships an update every 9 days, and ToneLogger weekly. Most recently, Duty shift was updated on October 10, 2026 and ToneLogger on October 18, 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.*