Air conditioning and professional tools for AC technicians in Israel
An air-conditioning business that builds apps and digital tools to help technicians and professionals calculate, document and share AC work — designed for Israel's climate and standards.
ד.ד. מיזוג אוויר (D.D. Mizug Avir) is an Israeli air-conditioning business owned by Denis Zolotar, an air conditioner repair technician. Under the Denis Air Tech brand we develop tools and apps for AC technicians.
Hands-on field experience is the basis of our tools: capacity calculations, unit conversion and client documents — simple, fast and clear.
Owner
Denis Zolotar
Profession
Air conditioner repair technician
Field
Air conditioning · tools and apps for technicians
Apps
ClimaSnap IL
AC capacity calculator for Israel
A professional AC capacity calculator for a room or a whole apartment / house, tuned to Israel’s climate. With tools for the technician and client jobs — all on the phone, even offline.
Room or apartment / house: named rooms (living room, Mamad…) and a whole-home total
BTU · tons · kW · כ״ס (HP) · CFM
Region (incl. Eilat / Arava) and sun side, incl. diagonals
Send PDF · summary and image via WhatsApp
Saved jobs with notes and photos · backup and restore
Unit converter · cable cross-section ↔ current (2014 Electricity Regulations)
Duct sizing: air speed and mixed diameters
Hebrew · Russian · English · dark theme
Works offline · no ads, no tracking
PROfree until December 1
PRO is free until December 1, 2026 (trial period); from December 1 it becomes paid, via Google Play. Everything you create is kept — you can still view it without PRO.
Materials list: suggestions from your own words, «taken» checklist, send via WhatsApp
Clients: client card (also from phone contacts), work history and service reminders
Client, job schedule & finance manager for AC technicians
A field-service job book and client manager built for air-conditioning technicians and installers: daily, weekly and monthly schedule, client cards with addresses and AC units, price catalog and PDF quotes, income, expense and net profit tracking — all on the phone, 100% offline.
Job calendar (Day / Week / Month): hourly timeline, job statuses and working hours
Client cards & addresses: import from phone contacts, one-tap call, WhatsApp and Waze / Google Maps navigation
Customer AC units: brand, model, BTU capacity, refrigerant type, serial number and warranty tracking
Service-due reminders: automatic list of AC units due for cleaning / maintenance with WhatsApp templates
Services & materials catalog: built-in price list with technician cost, plus “before” and “after” site photos
PDF quotes & receipts: send a formatted text summary or PDF document via WhatsApp in one tap
Finance & net profit: income, categorized expenses with receipt photos, partial payments and client debts
Statistics & period reports: revenue charts and export to PDF, Excel (XLSX) and CSV
