Comparison

SIGMO vs OffBlock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SIGMO

Features
Read full description

SIGMO App connects to an existing SIGMO instance (available from release version 3.2 upwards). This app requires a valid account for a SIGMO instance. - Aircraft status - Maintenance (work requests) - AOG Status - Airport List & Briefing - Arrival/Departure List (Schedule) Any AOG status update or work request for line maintenance engineers arrive with push notifications. The aircraft status and airport briefing are also available in offline mode. Data protection directive of the airline operator applies.

About

OffBlock

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
Read full description

The features you love combined in one app: Pilot Logbook – Created to do the work, with no work for you. • Smart flight logging, optimized for speed • Integrated aircraft management • Digital signature • Precise night time calculation • Powerful statistics, also for type- and class ratings • Data export, PDF reports in official formats (EASA, FAA) • Certificate manager • Extensive airport database, location info & aviation weather • Easy data import from third party apps Flight Crew App – Keep up. Be organized. Stay connected. • Calendar with timeline • Automated roster imports (“Live Updates”) • Push notifications & highlighting of roster changes • Calendar export to your private calendars • Crewlists for upcoming und past flights • Common events • Messaging (private chats & groups) • Flight map – ready to share on social media Roster Sharing – Share your aviation life. With privacy built in. • Connect with friends & colleagues • Check their rosters • Find common off days • Extra: OffBlock Family App for your non-flying family and friends The roster evaluation software „easy dutyplan“ is directly integrated into OffBlock - save money even faster and easier on your tax return! Supported roster systems: • AIMS eCrew • eCrew OCR • CBL WinOps • CrewConnex • CrewWebPlus APM • Jeppesen Crew Access • Leon • Lufthansa Group Open API • NetLine/CrewLink, Crew IDP • Planeación • RAIDO • Sabre CWP • SGT • SkedPlus+ • TOPS FREE 60 day trial on signup.

Screenshots

SIGMO2 screens
OffBlock4 screens

Verdict

The call

The clearest difference is price: OffBlock at Free against SIGMO's $1.99. SIGMO's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 15.0). On update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

OffBlock is free to download; SIGMO costs $1.99 up front. OffBlock sells 4 in-app purchases, starting at $2.99 per month. SIGMO asks for nothing beyond the download.

UpkeepUpdate frequency

SIGMO ships an update every 5 weeks, OffBlock every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
SIGMO versus OffBlock: the parameters behind the verdict, then further details
ParameterSIGMOOffBlock
Price$1.99Free — better
Rating—4.8 (104 ratings) — better
Positive reviews—48.3% of reviews
Number of ratings—104 — better
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size25 MB275 MB
Age rating4+4+
DeveloperManuel JavorikOffBlock GmbH

Bugs and requests

SIGMO

Not enough reviews yet to summarise bugs or requests.

OffBlock

Reported bugs

14 issues
  • Roster import not working
  • App is unusable
  • Roster autodownload and manual download doesn't work
  • Stby duties are not visible
  • Data lost
Show 9 more
  • App crashes
  • Dates bugging
  • Calendar export not working
  • Synchronization issues with Offblock-Family
  • Import roster stuck at 0%
  • Total flight hours not visible without payment
  • Statistics data lost after forced migration
  • All old data gone after update
  • Remark option not reintroduced

Requested features

6 requests
  • 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
Show 1 more
  • Integration of other airlines for connecting with friends outside own airline

In-app purchases

None

SIGMO

No in-app purchases

4 purchases

OffBlock

Subscriptions4
  • OffBlock Pro (1 month)$2.991 Month
  • OffBlock Pro+ (1 month)$6.991 Month
  • OffBlock Pro (1 year)$29.991 Year
Show 1 more
  • OffBlock Pro+ (1 year)$69.991 Year

Questions

Is SIGMO free?
SIGMO costs $1.99, with no in-app purchases.
Is OffBlock free?
OffBlock is free to download, with in-app purchases available.
Do SIGMO or OffBlock have ads?
Neither SIGMO nor OffBlock shows ads.
Which is updated more often, SIGMO or OffBlock?
SIGMO ships an update every 5 weeks, and OffBlock every 2 months. Most recently, SIGMO was updated on November 1, 2026 and OffBlock on November 6, 2026.

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