Signalfire2 vs Barnacle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Signalfire2
This utility app connects to fiber optical fusion splicers via Bluetooth, allowing for seamless data transmission to your mobile device. It enables synchronized updates of splicing machine settings directly from your phone's parameter settings.
- Bluetooth connectivity to fusion splicers
- Real-time data transmission
- Synchronized setting updates
- Parameter configuration
- Mobile device control
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Signal Fire APP is an intelligent control software for fiber optical fiber fusion splicer. This APP is connected to the splicing machine via Bluetooth. The data of the splicing machine can be transmitted to the mobile phone APP. In the APP parameter settings of the mobile phone, you can synchronize the update settings.
Barnacle
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Barnacle is a barcode wallet. Scan any code a machine can read, give it a name, put it in a group, and it is ready to show at the till, the gate or the gym desk. On your iPhone and iPad, and on your Apple Watch with the standalone watch app. WHAT IT KEEPS • Loyalty and rewards cards • Gym, library and club membership cards • Tickets, passes and vouchers • QR codes, coupons, anything with a barcode HOW IT WORKS • Point the camera at the code. Barnacle reads QR codes, EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, Codabar, ITF-14, PDF417, Aztec and Data Matrix. • No code to scan? Type the number in and pick the format. • Name it and drop it in a group, so the right card is one tap away. • Show it. Every code is drawn crisp on a white plate that scanners actually read. MAKE IT YOURS • Give each card a colour, or two, from the palette or the colour picker. • See the wallet as a list, or as tiles two or three to a row. ON YOUR HOME SCREEN • Widgets in every size show all your cards, one group, or the ones you pick. Tap a card and it opens. • Long-press the app icon to scan. ON YOUR WRIST Your cards, colours and all, copy from the phone to the watch on their own. Raise your wrist, tap the card, scan. No phone needed at the counter. FREE FOR TWO CODES Barnacle is free for two codes, on your phone and your watch. Barnacle Unlimited, one payment, unlocks the lot for good. No subscription. PRIVATE BY DESIGN • No account, no sign-in, no server. • Codes live only on your devices and never leave them. • No analytics, no tracking, no ads. Barnacle stores the code itself, not a photo of it, so it renders sharp every time, at any size, on any screen.
Screenshots
Verdict
The clearest difference is in-app purchases: Signalfire2 at none against Barnacle's 2. Barnacle's advantage is update cadence (every 2 days vs every 11 days) and device support (3 vs 1). On price, ads and iOS requirement 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. Barnacle sells 1 one-off in-app purchase. Signalfire2 asks for nothing beyond the download.
Signalfire2 ships an update every 11 days, Barnacle every 2 days. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.
| Parameter | Signalfire2 | Barnacle |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (9 ratings) — better | — |
| Positive reviews | 26.7% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 11 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 37 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | SIGNAL FIRE TECHNOLOGY CO., LTD. | Luke Wilkinson |
In-app purchases
Signalfire2
No in-app purchases
Barnacle
- Barnacle Unlimited2 variants$5.99









