DP vs LM Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DP
Connect to instruments via Bluetooth to capture leak survey data. Log details of observed leaks, including location and pictures, and view a map of your survey path. Download your data in various formats for analysis.
- Connect to instruments via Bluetooth
- Capture leak survey data
- Log leak details with location and pictures
- View survey map and breadcrumb trail
- Download data in CSV, KML, or zip formats
- Audible alarm for configurable CH4 values
Read full descriptionHide full description
The DP-IR+ Application provides an easy way for users to connect to Heath DP-IR+ instruments via Bluetooth (BLE) and capture leak survey data. This includes the following: · Search and connect to nearby DP-IR+ instruments · Select GPS logging rate option · Start a new leak survey · View current methane (CH4) values · Turn pump on or off · Perform bar hole surveys, capturing peak and sustained CH4 values over a 15 second reading · Log details of observed leaks including location and pictures · Switch between DP-IR+ devices during a survey · View map of breadcrumb trail and logged leaks · Download CSV, KML or zip files of a leak survey · Audible alarm through the mobile application based on configurable CH4 value
LM Smart
Read full descriptionHide full description
This is the Laser Methane Smart app. You can store Methane Gas detector's sensor data to the document folder of this app.
Screenshots
Verdict
The clearest difference is update cadence: LM Smart at every 14 months against DP's every 61 months. 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.
DP ships an update every 61 months, LM Smart every 14 months. Both last shipped on November 3, 2026.
| Parameter | DP | LM Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 61 months | Every 14 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 | 13 — better |
| Further details — not scored | ||
| Size | 174 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Heath Consultants Inc | Aplix Corporation |
In-app purchases
DP
No in-app purchases
LM Smart
No in-app purchases
