# Max Flight Duty Period vs Yonder Offline Reader

The clearest difference is price: Yonder Offline Reader at Free against Max Flight Duty Period's $6.99. Yonder Offline Reader also leads on update cadence (every 3 weeks vs every 5 months). Max Flight Duty Period's advantage is iOS requirement (13.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Yonder Offline Reader is free to download; Max Flight Duty Period costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Max Flight Duty Period ships an update every 5 months, Yonder Offline Reader every 3 weeks. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Max Flight Duty Period | Yonder Offline Reader |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/max-flight-duty-period/id402180522/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 18 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Gehringer](https://appshunter.io/developer/346165777) | [Yonder AG](https://appshunter.io/developer/1460595350) |

## What reviewers say

### Max Flight Duty Period

[App page](https://appshunter.io/ios/app/max-flight-duty-period/id402180522)

This app calculates maximum flight duty periods for flight and cabin crew, considering factors like long-range operations, crew augmentation, standby, delays, and split duty. It offers an intuitive interface for quick access to essential information based on CAR OPS and CAP 371 regulations.

**Highlights:** Calculates max flight duty period, Accounts for long range operations, Considers augmented crew, Includes standby and delay, Supports split duty calculations, Intuitive interface, CAR OPS and CAP 371 compliant

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

**In-app purchases:** none


### Yonder Offline Reader

[App page](https://appshunter.io/ios/app/yonder-offline-reader/id1642307870)

Organize and access your files with a multi-column layout and collapsible sections. Search within documents, manage favorites in folders, and receive personalized notifications. Designed with a sleek iOS interface for easy navigation.

**Highlights:** 3-column layout with collapsible sidebar, Organize favorites into folders, Search within files and table of contents, Access personal notifications, Sleek iOS interface

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Max Flight Duty Period free?

Max Flight Duty Period costs $6.99, with no in-app purchases.

### Is Yonder Offline Reader free?

Yonder Offline Reader is free to download, with no in-app purchases.

### Do Max Flight Duty Period or Yonder Offline Reader have ads?

Neither Max Flight Duty Period nor Yonder Offline Reader shows ads.

### Which is updated more often, Max Flight Duty Period or Yonder Offline Reader?

Max Flight Duty Period ships an update every 5 months, and Yonder Offline Reader every 3 weeks. Most recently, Max Flight Duty Period was updated on October 26, 2026 and Yonder Offline Reader on October 19, 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.*