珣张 — Apps, positioning, trajectory

Q: How many apps does 珣 张 publish?

珣 张 has 2 apps tracked by Marlvel, primarily in the Developer Tools category.

Q: What kind of apps does 珣 张 make?

珣 张's portfolio is concentrated in Developer Tools, with an average rating of 4.3/5 across rated apps.

Q: In how many countries are 珣 张's apps available?

Marlvel has tracked 珣 张's apps across 1 country.

Who is 珣张?

Providing developers and network administrators with specialized utilities for TCP and UDP protocol debugging and diagnostic testing.

Target audience

Software developersNetwork maintenance personnel requiring mobile-based TCP/UDP diagnosticPacket monitoring capabilities

Rivals analysis in progress

Portfolio

Free 1

apps

Developer Tools2

Last updated

iSocketTool

v2.9.2

1.4y ago

Zombie

Publisher DNA

Primary focus

Developer tools for network debugging

Scale

indie

Target audience

Software developers and network maintenance personnel requiring mobile-based TCP/UDP diagnostic and packet monitoring capabilities.

Signature Patterns

•Specialization in TCP and UDP communication protocols
•Inclusion of diagnostic features like port scanning and packet monitoring
•Targeting technical professionals rather than general consumers
•Mixed monetization approach with both paid and free versions of core utilities

Zombie

Portfolio momentum

The publisher has recorded zero releases across the portfolio in the last six months, with 50% of the catalog currently classified as abandoned.

Active apps 0Abandoned 1

Portfolio

Apps

2 apps analysed

Sort by

4.3(29)

4.3(10)

Single-market publisher — every app ships only to United States.

Based on 1 of 2 apps with localized market data — more coverage rolling in as scans complete · last scanned May 2026.

Americas (1)

United States1 / 1

Core markets (1/1 apps)

United States

Frequently asked questions

How many apps does 珣张 publish?

珣张 has 2 apps tracked by Marlvel, primarily in the Developer Tools category.

What kind of apps does 珣张 make?

珣张's portfolio is concentrated in Developer Tools, with an average rating of 4.3/5 across rated apps.

What is 珣张's top app?

Based on user sentiment and following across the portfolio, iSocketTool stands out as 珣张's flagship app tracked by Marlvel.

In how many countries are 珣张's apps available?

Marlvel has tracked 珣张's apps across 1 country.