# OffBlock vs SIPLAP

The clearest difference is in-app purchases: SIPLAP at none against OffBlock's 4. SIPLAP also leads on rating (5.0 vs 4.8). OffBlock's advantage is ratings volume (104 vs 1) and update cadence (every 2 months vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OffBlock sells 4 in-app purchases, starting at $2.99 per month. SIPLAP asks for nothing beyond the download.

SIPLAP holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: OffBlock has 104 ratings behind it against 1, so its average is the more settled of the two.

OffBlock ships an update every 2 months, SIPLAP every 4 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OffBlock | SIPLAP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (104 ratings)](https://appshunter.io/ios/app/offblock/id1231996198/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/siplap/id6451268175/reviews)** |
| Number of ratings | **104** | 1 |
| Positive reviews | 48.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 275 MB | 64 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OffBlock GmbH](https://appshunter.io/developer/1231996197) | [2Way ehf](https://appshunter.io/developer/1151220739) |

## What reviewers say

### OffBlock

[App page](https://appshunter.io/ios/app/offblock/id1231996198)

This app combines a smart pilot logbook with a flight crew organizer. It offers features like automated roster imports, flight logging, and crew communication tools. Share your aviation life and manage your professional schedule efficiently.

**Highlights:** Smart flight logging, Automated roster imports, Integrated aircraft management, Calendar with timeline, Crew communication tools, Roster sharing, Data export in official formats

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OffBlock Pro (1 month) | $2.99 | per month |
| OffBlock Pro+ (1 month) | $6.99 | per month |
| OffBlock Pro (1 year) | $29.99 | per year |
| OffBlock Pro+ (1 year) | $69.99 | per year |

**What reviewers like**

- 👍 Great support team
- 👍 App is good and useful
- 👍 Top App
- 👍 Best Support and product
- 👍 Works without difficulty

**What reviewers complain about**

- 😞 Roster import not working
- 😞 App is unusable
- 😞 Way too expensive
- 😞 Service is really bad
- 😞 Data lost

**Reported bugs**

- Roster import not working
- App is unusable
- Roster autodownload and manual download doesn't work
- Stby duties are not visible
- Data lost

**Requested features**

- Export in calendar view for printing
- Calendar export to be fixed
- More content in logbook for general aviation
- Reintroduce 'remark' option
- Desktop version available again


### SIPLAP

[App page](https://appshunter.io/ios/app/siplap/id6451268175)

This app provides a secure platform for union members to access union information, submit reports, and view union documents. It facilitates efficient communication between the union and its affiliates, offering access to benefits, hotel information, and event invitations.

**Highlights:** Submit reports quickly, View union documents, Access member benefits, Check hotel information, Respond to surveys, Receive event invitations

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

**In-app purchases:** none


## Frequently asked questions

### Is OffBlock free?

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

### Is SIPLAP free?

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

### Which has better reviews, OffBlock or SIPLAP?

SIPLAP is rated higher. OffBlock averages 4.8 out of 5 from 104 ratings, while SIPLAP averages 5.0 from 1 ratings.

### Do OffBlock or SIPLAP have ads?

Neither OffBlock nor SIPLAP shows ads.

### Which is updated more often, OffBlock or SIPLAP?

OffBlock ships an update every 2 months, and SIPLAP every 4 months. Most recently, OffBlock was updated on October 29, 2026 and SIPLAP on October 30, 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.*