Calling App Development Company in India

Zartek designs and develops high-quality audio and video calling apps with real-time performance, in-app wallets, and secure billing. Whether you want to launch a consultation, companion, telehealth, or advisory calling platform, we help you go live faster with a proven, customizable product.

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Service Detail - Feature by Zartek
  • 1
    Define Your Calling Model

    We start by understanding your use case consultation, companion, telehealth, tutoring, or support and design the right calling flow, billing model, and user roles for it.

  • 2
    Choose Your Calling SDK

    We help you select the right real-time engine for quality and cost, including Wibe Chat and Agora giving you HD audio and video tuned for Indian networks with predictable, transparent pricing.

  • 3
    Customize UI & Build the Wallet

    We tailor the interface to your brand and wire up the coin wallet, per-minute billing, referral and bonus logic, ratings, and payment gateway integration such as Razorpay.

  • 4
    Launch and Scale

    We deploy to the Play Store and App Store, monitor real-world usage, and help you scale to more users with reliable infrastructure and digital marketing support.

0Mobile & Web Apps Completed
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Frequently Asked Questions

The cost depends on the number of platforms, the features you need, and how much customization is required. Because we offer a ready-made calling app that we customize to your brand, you can launch at a significantly lower cost and faster than building from scratch. Contact us for a free, tailored quote.
A fully custom calling app typically takes around 2 to 4 months depending on scope. Using our ready-made product with UI customization, many clients go live much faster, since the core calling, wallet, and admin systems are already built.
Both provide real-time audio and video. Wibe Chat is an unified communication SDK — it bundles text, voice, and video in a single integration, is tuned for Indian networks, and offers transparent per-minute pricing that is typically lower than Agora. Agora is a well-established global provider. We help you choose the best fit for your quality needs and budget, and can build on either.
Yes. Our ready-made product includes customer and agent mobile apps plus HR Admin and Super Admin web panels, with audio/video calling, a coin wallet, ratings, messaging, and admin controls already built. We customize the UI and features to your requirements before launch.
Users recharge a wallet through an integrated payment gateway such as Razorpay. Coins are deducted automatically based on each agent's per-minute rate during a call. You can also configure signup bonus coins and referral rewards, with separate per-minute values for purchased, bonus, and referral coins.
Absolutely. Every screen, color, and user flow can be tailored to your brand identity, and we can add or remove features to match your specific business model.
We build calling apps for Android and iOS mobile, and web-based admin and management panels. The same backend can power all of them.
We use production-grade real-time engines - Wibe Chat and Agora with adaptive bitrate and network tuning, so calls stay clear even on weaker mobile connections. We also provide call analytics to monitor quality.
Yes. Both audio and video calling are supported. Video availability can be enabled or disabled globally, per agent, or by agents for their own profile, giving you full control.
The apps block screenshots and screen recording during calls, support reporting and moderation of abusive messages, and give admins tools to warn or block users. Sensitive details like phone numbers and user IDs cannot be changed by users.
We commonly integrate Razorpay for the Indian market, and can add other gateways based on your region and requirements.
Yes. Admins can approve or reject agents, view call history and recordings, monitor missed calls, review earnings and ratings, configure recharge plans, and oversee all transactions from the web panels.
Zartek Technologies Private Limited is a leading software development company in India with expertise in mass consumer technology products. Zartek is incubated in Kerala Startup Mission in Kochi, India.
Contact Us

Kerala Technology Innovation Zone
Kinfra Hi-tech Park, Kalamassery, Kochi, India

Phone:(+91) 8069647545

E-Mail: info@zartek.in

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