165+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our osis sip list covers 165+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.
Manage your academic life with ease. This app offers a user-friendly interface for fee payments, course information, registration, and real-time updates. Track your progress and stay informed about important academic events.
Discover fashion from over 850 brands and 85,000 products. Features include visual search, personalized recommendations, and sale alerts. Enjoy free shipping and returns globally.
This open-source application provides free audio and video calls, as well as text messaging, over the internet. It allows users to stay reachable at all times via WiFi or mobile data, even when the app is closed. Enjoy secure communication and the ability to connect with traditional phone lines.
This app provides high-definition voice and video calls, plus instant messaging, for users of a specific hosted PBX platform. It offers secure calling with TLS encryption and efficient low-bandwidth usage. Setup is simplified through QR code provisioning.
This app extends your home phone service to your mobile device. Make and receive calls using your home number, manage voicemail, and check call history from anywhere. It utilizes internet calling for unlimited domestic and low-rate international calls.
This app allows you to make high-quality voice and video calls over Wi-Fi or 3G using your PBX or VoIP provider. It offers features like call waiting, transfer, and recording, with background operation optimized for battery life. Easily configure accounts with a built-in QR code scanner.
Edit, convert, and manage PDF documents on your mobile device. This app allows you to directly edit text, scan documents, fill out forms, and secure your files with passwords and watermarks. It also supports OCR to extract text from scans and convert PDFs to various formats.
This mobile SIP client integrates with cloud VoIP solutions, offering advanced call management and high-quality communication. It supports various codecs, multiple accounts, and secure calling features, with some premium functionalities available through in-app purchases.
This VoIP softphone app enables voice, video, and chat communication for businesses. It requires an administrator-generated account for login and is provisioned through a platform for easy configuration and management.
Invest in diversified model portfolios of stocks, ETFs, and mutual funds for long-term wealth. Explore thematic investing and receive expert rebalance updates. Track net worth and invest in direct mutual funds and fixed deposits.
Split purchases into 4 or 8 interest-free installments, paid bi-weekly. Use online or in-store with a virtual or physical card. Earn cashback and potentially increase spending power with on-time payments.
This app offers a streamlined way to make calls, send texts, and send faxes. It provides connectivity solutions for businesses and managed service providers with a focus on speed and convenience.
This SIP-based softphone allows users to make and receive calls and instant messages over Wi-Fi or cellular data. It integrates with a PBX for push notifications and offers advanced call management features, including video conferencing. Security is a priority with encrypted signaling and audio.
Easily pay for parking from your phone, extending sessions remotely and finding nearby spots. Get notifications before your session expires and track your parking history. Supports multiple payment methods for a seamless experience.
This SIP softphone client provides high-quality voice and video calls with robust security and customization options. It integrates seamlessly with VoIP providers for personal and professional use, offering features like instant messaging and call transfers.
This app extends your desk phone functionality to your mobile device. Access contacts, join meetings, and manage calls and voicemails with a new, intuitive interface. It ensures your business caller ID is used, keeping your personal number private.
This app provides a secure, high-quality VoIP softphone solution for business communication. It supports voice, video, and chat with features like XMPP and SIP SIMPLE, allowing users to stay connected on the go. It offers advanced call management and security options.
Analyze current investments or plan future ones with this tool. It calculates the future value of Systematic Investment Plan (SIP) payments and helps determine monthly investment amounts needed to reach financial goals. Useful for planning long-term purchases like a car or house.
This app extends your business phone system to your mobile device, enabling HD voice and video calls, contact monitoring, and voicemail management. Stay connected with clients and colleagues from anywhere, without needing extra hardware.
This app consolidates business communication tools into a single platform. It enables users to make voice and video calls, send instant messages, and share files across various devices. Designed for seamless collaboration, it integrates with existing VoIP services.