ZkDev
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Apps: 7
Total installs: 1.3K
Avg rating: ★ 4.43
Ratings: 7
Latest release: Sep 9, 2026
How this developer operates
- Carrier title Pipe Offset Calculator holds 31% of the developer's installs
- Hit rate 0% of launches reach 100k installs (0 of 7 at least 30 days old)
- Release rhythm a new app every ~325 days on average
- Maintenance 6 of 7 apps updated in the last 90 days · last update 57 days ago
Same company, other accounts · Rizvan Adzhoian
Developer names that share this developer's legal name, contact e-mail or website in the store.
Listings that changed hands
| App | Direction | Counterparty | When |
|---|
 Head Loss Calculator |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Hazard Classification NFPA 13 |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 HVAC Unit Converter - Tools |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 HVAC Refrigerant P-T Chart |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 HVAC Psychrometric Calculator |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 HVAC MCA & Electrical Load |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 HVAC Hydronic Pipe Calculator |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 HVAC Heat Load BTU Calculator |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 HVAC Duct Sizing Calculator |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 HVAC Airflow CFM Calculator |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Grounding NEC 250 Calculator |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Gas Pipe Sizing - NFPA 54 |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Fixture Unit Calculator IPC |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Fire Pump Calculator NFPA 20 |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Fire Extinguisher Calc NFPA 10 |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Fire Alarm Calculator NFPA 72 |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Fence Calculator - Estimator |
renamed |
Rizvan Adzhoyan |
Nov 12, 2026 |
 Drainage Slope Calculator |
renamed |
Rizvan Adzhoyan |
Nov 11, 2026 |
 Drainage Sizing - IPC 2024 |
renamed |
Rizvan Adzhoyan |
Nov 11, 2026 |
 Conduit Fill NEC Chapter 9 |
renamed |
Rizvan Adzhoyan |
Nov 11, 2026 |
 Concrete Calc: Volume & Bags |
renamed |
Rizvan Adzhoyan |
Nov 11, 2026 |
 Commercial Load Calculator |
renamed |
Rizvan Adzhoyan |
Nov 11, 2026 |
 Breaker Size NEC 240 Calc |
renamed |
Rizvan Adzhoyan |
Nov 10, 2026 |
 Box Fill NEC 314 Calculator |
renamed |
Rizvan Adzhoyan |
Nov 10, 2026 |
 Backflow Device Selector Tool |
renamed |
Rizvan Adzhoyan |
Nov 10, 2026 |
 Zentra — Budget & Expenses |
renamed |
Rizvan Adzhoyan |
Nov 8, 2026 |
 Wire Size NEC 310 Calculator |
renamed |
Rizvan Adzhoyan |
Nov 8, 2026 |
 Water Supply Analysis NFPA 13 |
renamed |
Rizvan Adzhoyan |
Nov 8, 2026 |
 Water Pipe Sizing IPC 2024 |
renamed |
Rizvan Adzhoyan |
Nov 8, 2026 |
 Water Heater Sizing - BTU |
renamed |
Rizvan Adzhoyan |
Nov 8, 2026 |
 Voltage Drop NEC Tables 8&9 |
renamed |
Rizvan Adzhoyan |
Nov 8, 2026 |
 Trap & Vent Sizing - IPC 2024 |
renamed |
Rizvan Adzhoyan |
Nov 7, 2026 |
 Transformer NEC 450 Calculator |
renamed |
Rizvan Adzhoyan |
Nov 7, 2026 |
 TradeTools: HVAC & Electrical |
renamed |
Rizvan Adzhoyan |
Nov 7, 2026 |
 Superheat Calculator - HVAC |
renamed |
Rizvan Adzhoyan |
Nov 7, 2026 |
 Standpipe Calculator NFPA 14 |
renamed |
Rizvan Adzhoyan |
Nov 6, 2026 |
 Sprinkler Hydraulic NFPA 13 |
renamed |
Rizvan Adzhoyan |
Nov 6, 2026 |
 Sprinkler Hanger Spacing NFPA |
renamed |
Rizvan Adzhoyan |
Nov 6, 2026 |
 Solar Wire Sizer NEC 690.8 |
renamed |
Rizvan Adzhoyan |
Nov 6, 2026 |
 Solar Voltage Drop NEC 210 |
renamed |
Rizvan Adzhoyan |
Nov 6, 2026 |
Pipe Offset Calculator
Load Calc NEC 220 Service
NFPA Code Reference Offline
Motor FLA NEC 430 Calculator
Pipe Schedule NFPA 13 Sizing
MyNote/Мои заметки
NEC 690 Reference
