iLlumination vs OffBlock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iLlumination
This universal flashlight app uses your device's LED or screen to provide illumination. It offers features like tap-to-toggle, strobe modes, and Morse code, with additional options for color and contrast adjustment.
- LED and screen flashlight
- Tap-mode control
- Strobe light modes
- Morse code functionality
- Color picker
- Contrast adjustment
- Screen lock
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iLlumination — The Classic Flashlight, Reborn The flashlight app thousands relied on is back — rebuilt from the ground up for modern iPhone. Same simple idea, a completely new design, and every feature refined for today's devices. Why fumble in the dark? iLlumination turns your iPhone's LED flash — or its screen — into a fast, reliable light, with proper controls for the moments you actually need them. Lighting modes • Flashlight — instant, ultra-bright steady light. • Tap mode — press and hold to shine, release to stop. The fastest way to signal. • Strobe — rhythmic flashing with selectable speeds, from slow to ultra-fast. • Morse code — type any message and flash it with correctly timed pulses, with a built-in SOS and loop. Choose your light source Use the LED flash, the Screen, or Dual (both at once) in any mode — pick a default in Settings. Built for control • Brightness — fine-tune the LED level and screen brightness with a slider, or swipe on the screen light to dim it on the fly. • Color picker — eight screen-light colors (white, warm, amber, red, green, blue, violet, pink). Remembers your last choice. • Screen lock — dim the screen and lock it so a stray tap never kills your light. Double-tap to unlock. • Auto-on — switch the light on the instant the app launches. • Dark, Light & Auto appearance. No ads. Just light, done properly. Strobe lighting can trigger seizures in people with photosensitive epilepsy. Please use with care. Note: Sustained use of the LED flash will drain your battery faster. I'm always improving iLlumination and I genuinely read every message. For bug reports, feature ideas, or to help translate the app into your language, email me: iphone@erikstorli.net.
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.
- Smart flight logging
- Automated roster imports
- Integrated aircraft management
- Calendar with timeline
- Crew communication tools
- Roster sharing
- Data export in official formats
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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
Verdict
The clearest difference is price: OffBlock at Free against iLlumination's $0.49. OffBlock also leads on rating (4.8 vs 1.0) and ratings volume (104 vs 1). iLlumination's advantage is review sentiment (90% vs 48%) and in-app purchases (none vs 4). 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
OffBlock is free to download; iLlumination costs $0.49 up front. OffBlock sells 4 in-app purchases, starting at $2.99 per month. iLlumination asks for nothing beyond the download.
OffBlock holds the better App Store score, 4.8 against 1.0. 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. Written reviews complicate that: 90% of iLlumination's written reviews are positive against 48% of OffBlock's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | iLlumination | OffBlock |
|---|---|---|
| Price | $0.49 | Free — better |
| Rating | 1.0 (1 ratings) | 4.8 (104 ratings) — better |
| Positive reviews | 90.3% of reviews — better | 48.3% of reviews |
| Number of ratings | 1 | 104 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 275 MB |
| Age rating | 4+ | 4+ |
| Developer | Erik Storli | OffBlock GmbH |
Customer experience
iLlumination
OffBlock
User reviews
iLlumination
From 1 App Store ratingsWhat we love
- 👍 Easy to use
- 💡 Handy and useful
- 🚀 Instant startup
- 🌟 Reliable and dependable
- 💡 Bright light
Room to improve
- 🐛 App no longer works on updated iPhones
- 🐛 Requires app to be open
- 🐛 Light turns off when switching apps
- 🐛 Incompatible with latest iOS versions
- 🐛 Last update caused freezing
OffBlock
From 104 App Store ratingsWhat we love
- 👍 Great support team
- 👍 App is good and useful
- 👍 Top App
- 👍 Best Support and product
- 👍 Works without difficulty
Room to improve
- 😞 Roster import not working
- 😞 App is unusable
- 😞 Way too expensive
- 😞 Service is really bad
- 😞 Data lost
Bugs and requests
iLlumination
Reported bugs
5 issues- App no longer works on updated iPhone
- Error message with latest iPhone operating system
- App freezes after last update
- Paid for no ads, still have ads
- Double tap start button not fixed
Requested features
5 requests- Adjustable strobe speed
- Ability to use light while running other apps
- Remember last settings for quick activation
- Larger flashlight button with toggle
- Implement requested features
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
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- 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
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- Integration of other airlines for connecting with friends outside own airline
In-app purchases
iLlumination
No in-app purchases
OffBlock
- OffBlock Pro (1 month)$2.991 Month
- OffBlock Pro+ (1 month)$6.991 Month
- OffBlock Pro (1 year)$29.991 Year
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- OffBlock Pro+ (1 year)$69.991 Year









