J vs BWTLaserEn
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
J
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J-Weld is a mobile APP which is used to remote welding machines.
BWTLaserEn
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It can control the laser produced by ©BWT Tianjin Ltd., read various data information of the laser, control the power, frequency, duty cycle, and whether to emit light of the laser. It can display the alarm information of the laser and unlock the laser.
Screenshots
Verdict
J and BWTLaserEn are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
J ships an update every 3 months, BWTLaserEn every 2 months. The most recent releases landed on August 29, 2026 and September 9, 2026 respectively.
| Parameter | J | BWTLaserEn |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15 — better |
| Further details — not scored | ||
| Size | 30 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | 深圳市佳士科技股份有限公司 | 天津凯普林光电科技有限公司 |
In-app purchases
J
No in-app purchases
BWTLaserEn
No in-app purchases
