# Sign PDF documents vs iFlight Crew Mobile

The clearest difference is in-app purchases: iFlight Crew Mobile at none against Sign PDF documents's 3. iFlight Crew Mobile also leads on ads (none vs shown) and ratings volume (38 vs 1). Sign PDF documents's advantage is review sentiment (22% vs 1%). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Sign PDF documents sells 3 in-app purchases, starting at $2.99 per month. iFlight Crew Mobile asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 1.0 for Sign PDF documents against 1.0 for iFlight Crew Mobile. That said, the two scores are not equally well evidenced: iFlight Crew Mobile has 38 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 22% of Sign PDF documents's written reviews are positive against 1% of iFlight Crew Mobile's.

Sign PDF documents ships an update every 3 weeks, iFlight Crew Mobile fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sign PDF documents | iFlight Crew Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/sign-pdf-documents/id1011784538/reviews) | **[1.0 (38 ratings)](https://appshunter.io/ios/app/iflight-crew-mobile/id6503934662/reviews)** |
| Number of ratings | 1 | **38** |
| Positive reviews | **22.2% of reviews** | 0.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Ad-supported | **Free** |
| Size | 19 MB | 50 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Emanuele Floris](https://appshunter.io/developer/597490842) | [IBS Software Private Limited](https://appshunter.io/developer/1491001052) |

## What reviewers say

### Sign PDF documents

[App page](https://appshunter.io/ios/app/sign-pdf-documents/id1011784538)

Easily sign documents digitally without printing. This app allows for unlimited signatures without requiring a subscription or registration, making document signing quick and convenient.

**Highlights:** Unlimited digital signatures, No subscription required, No registration needed, Sign without printing, Document archiving

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $2.99 | per month |
| Unlimited Access | $8.99 | per year |
| PRO Lifetime Access | $22.99 | one-time |


### iFlight Crew Mobile

[App page](https://appshunter.io/ios/app/iflight-crew-mobile/id6503934662)

This mobile app provides airline crew members with easy access to their daily rosters, important messages, and alerts for roster changes. It allows users to view profile details, statistics, messages, and hotel information, enhancing operational efficiency.

**Highlights:** View daily roster details, Receive roster change alerts, Access important messages, View profile and statistics, Check hotel details, Acknowledge notifications, Perform check-in actions

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

**In-app purchases:** none


## Frequently asked questions

### Is Sign PDF documents free?

Sign PDF documents is free to download, with in-app purchases available.

### Is iFlight Crew Mobile free?

iFlight Crew Mobile is free to download, with no in-app purchases.

### Which has better reviews, Sign PDF documents or iFlight Crew Mobile?

iFlight Crew Mobile is rated higher. Sign PDF documents averages 1.0 out of 5 from 1 ratings, while iFlight Crew Mobile averages 1.0 from 38 ratings.

### Do Sign PDF documents or iFlight Crew Mobile have ads?

Sign PDF documents shows ads; iFlight Crew Mobile does not.

### Which is updated more often, Sign PDF documents or iFlight Crew Mobile?

Sign PDF documents ships an update every 3 weeks, and iFlight Crew Mobile fortnightly. Most recently, Sign PDF documents was updated on October 24, 2026 and iFlight Crew Mobile on October 24, 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.*