IRIS SmartLF vs LinkRay Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IRIS SmartLF
Remotely manage your smart lights from anywhere. Adjust brightness levels and schedule timers for automatic on/off cycles. Ensure your home is lit just the way you want it, even when you're not there.
- Remote light control
- Brightness adjustment
- Scheduling timers
- Automated on/off
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Key Features: Control your lights while you're away Adjust brightness Set timers to turn lights on and off
LinkRay Scanner
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LinkRay Scanner reads LinkRay (HikariID) optical IDs transmitted by LED lighting. Point the camera at a participating light, and the app decodes the ID that light is broadcasting and shows what it is linked to. WHAT IT DOES - Decodes LinkRay IDs from LED lights using the rear camera - Looks up each scanned ID and opens the content mapped to it - Keeps an on-device log of what was scanned and how the camera performed - Uses a published camera profile for your iPhone model HOW IT WORKS A LinkRay light carries a short numeric ID by flickering faster than the eye can see. The app samples that flicker through the camera and recovers the ID. Recovery depends on the precise timing of the camera sensor, so the app relies on a camera profile published for your specific model. WHAT YOU NEED - A LinkRay-equipped light to scan - A network connection: the app loads its screens and the content for each scanned ID from the LinkRay Scanner server - A published camera profile covering your iPhone model ON MEASUREMENT This app decodes using camera profiles that already exist. It does not measure or calibrate new profiles. PRIVACY Video from the camera is processed on the device and is never uploaded. Diagnostic records of a scan - your device model, decode timings and the result - are sent to the LinkRay Scanner server so that profiles can be improved. The privacy policy at https://linkrayscanner.piecefuture.duckdns.org/privacy explains what is kept and how to have it removed.
Screenshots
Verdict
The clearest difference is update cadence: LinkRay Scanner at every 5 days against IRIS SmartLF's every 13 months. IRIS SmartLF's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
IRIS SmartLF ships an update every 13 months, LinkRay Scanner every 5 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | IRIS SmartLF | LinkRay Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (5 ratings) — better | — |
| Positive reviews | 18.9% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 13 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 166 MB | 2 MB |
| Age rating | 17+ | 4+ |
| Developer | IRIS OHYAMA INC. | PieceFuture Ptd Ltd |
In-app purchases
IRIS SmartLF
No in-app purchases
LinkRay Scanner
No in-app purchases









