Eljen Design App vs Xylem GPDA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eljen Design App
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Use the Eljen design app to quickly and easily design your leachfield and calculate the amount of sand and dirt required for the job.
Xylem GPDA
This app allows members of a professional dealer association to earn points for purchasing specific products. Accumulated points can then be redeemed for exclusive rewards, enhancing member benefits.
- Earn points on Goulds Water Technology purchases
- Redeem points for exclusive rewards
- Track purchase history
- Access member benefits
- Exclusive dealer program
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Goulds Professional Dealer Association (GPDA) - Earn points for every Goulds Water Technology purchase and redeem for exclusive rewards!
Screenshots
Verdict
The clearest difference is update cadence: Xylem GPDA at every 4 months against Eljen Design App's every 9 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.
Eljen Design App ships an update every 9 months, Xylem GPDA every 4 months. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.
| Parameter | Eljen Design App | Xylem GPDA |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 2 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | New Wave Industries, Inc. | Xylem Inc. |
In-app purchases
Eljen Design App
No in-app purchases
Xylem GPDA
No in-app purchases
Questions
Is Eljen Design App free?
Is Xylem GPDA free?
Do Eljen Design App or Xylem GPDA have ads?
Which is updated more often, Eljen Design App or Xylem GPDA?
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