PLD2 vs GWL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PLD2
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PLD2 operates the 64seconds Pipeline Leak Detector (PLD) instrument. PLD2 records and analyzes sounds from underground pipelines and contact points, like hydrants, valves, and meters, from the PLD sensing unit (required hardware device). High resolution audio processing allows mobile users to discover and pinpoint pipeline leaks quickly and easily.
GWL
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This app scans for Ground water sensor and reads the depth of water
Screenshots
Verdict
The clearest difference is update cadence: PLD2 at every 3 weeks against GWL's every 14 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.
PLD2 ships an update every 3 weeks, GWL every 14 months. The most recent releases landed on September 10, 2026 and December 8, 2025 respectively.
| Parameter | PLD2 | GWL |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 14 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 20 MB | 10 MB |
| Age rating | 4+ | 17+ |
| Developer | 64seconds, Inc. | Smart Sensor Devices AB |
In-app purchases
PLD2
No in-app purchases
GWL
No in-app purchases
