M3Marker vs UL Shield
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
M3Marker
Read full descriptionHide full description
The M3Marker is the App for operating the M3Marker machine. M3Marker is the app for designing the marking patterns for the battery operated hand held cordless dot peen marking machine You can design the alpha numeric text or DXF logos or datamatrix and QR code barcodes for marking on metal or plastic components. The machine has built in WiFi hotspot . The phone or tablet connects to this WiFi hotspot and then the app connects to the machine. Once connected the app reads the design saved in the machine and user can change and transfer the designs to the machine.
UL Shield
Enhance organizational security with tools like a panic button, tip submission, and a safety timer. This application provides an extra layer of protection for your organization.
- Panic Slider
- Submit Tips
- Safety Timer
- Organizational Protection
Read full descriptionHide full description
Use UL Shield to add an additional layer of protection to your organization by utilizing tools such as: Panic Slider, Submit Tips and Safety Timer.
Screenshots
Verdict
M3Marker and UL Shield 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.
M3Marker ships an update every 4 months, UL Shield every 3 months. The most recent releases landed on September 18, 2026 and September 15, 2026 respectively.
| Parameter | M3Marker | UL Shield |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 14.0 | 13.2 — better |
| Further details — not scored | ||
| Size | 84 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Kaushik Kale | University of Louisiana at Lafayette |
In-app purchases
M3Marker
No in-app purchases
UL Shield
No in-app purchases
