Comparison

SDE GROUP vs Lusterline.

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

SDE GROUP

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A leading producer and distributor of quality polished diamonds worldwide, SDE Group is both a large, global business and a family business, with a strong and longstanding commitment to personal service, excellence, and the highest quality inventory. Our manufacturing centers and offices are located worldwide, supporting a global infrastructure supplying a wide range of diamonds to retailers, from small specialty stores to large chains, meeting every need at any time.

About

Lusterline.

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Lusterline is a professional diamond sourcing app built for B2B jewelry clients. Browse available diamond inventory, review key stone details, compare options, and connect for pricing and orders. Designed for jewelers, retailers, and trade buyers who need a faster, simpler way to source quality diamonds with confidence.

Screenshots

SDE GROUP4 screens

Lusterline.4 screens

Verdict

The call

The clearest difference is update cadence: Lusterline. at monthly against SDE GROUP's every 6 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SDE GROUP ships an update every 6 months, Lusterline. monthly. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 5 level

SDE GROUP versus Lusterline.: the parameters behind the verdict, then further details
Parameter	SDE GROUP	Lusterline.
Price	Free	Free
Update frequency	Every 6 months	Monthly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad
Requires iOS	16.4	16.4
Further details — not scored
Size	53 MB	53 MB
Age rating	4+	4+
Developer	SDE GROUP	LusterLine

In-app purchases

None

SDE GROUP

No in-app purchases

None

Lusterline.

No in-app purchases

Questions

Is SDE GROUP free?

SDE GROUP is free to download, with no in-app purchases.

Is Lusterline. free?

Lusterline. is free to download, with no in-app purchases.

Do SDE GROUP or Lusterline. have ads?

Neither SDE GROUP nor Lusterline. shows ads.

Which is updated more often, SDE GROUP or Lusterline.?

SDE GROUP ships an update every 6 months, and Lusterline. monthly. Most recently, SDE GROUP was updated on October 5, 2026 and Lusterline. on October 15, 2026.