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OpenPhone VS CallSync

Compare OpenPhone VS CallSync and see what are their differences

OpenPhone

Simplest way to own a business phone number

Rating
5.0 · 1 review
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Alternatives Is it good?
CallSync

Real-Time Business Call Tracking & AI Voice CRM. Sync team SIM calls to a cloud dashboard with instant Gemini transcriptions, AI summaries, and native Claude/ChatGPT MCP tools.

No screenshot yet
Rating
0 reviews
Pricing
Paid Free trial $5.99 / Monthly (Per user / seat)
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Alternatives Is it good?
Eventtia
Event management software that runs the full lifecycle on one platform: branded event pages, registration and ticketing, email, SMS and WhatsApp campaigns, on-site check-in and badging, B2B matchmaking, a mobile app, and cross-event analytics. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, OpenPhone seems to be more popular. It has been mentioned 11 times since March 2021.

social mentions
11 vs 0
VoIP popularity
100% vs 0%
alternatives listed
209 vs 9

Base details

Website, pricing, platforms and company facts side by side.

OpenPhone
CallSync
Website openphone.com callsyncapp.com
Pricing
Official pricing
Paid Free trial $5.99 / Monthly (Per user / seat) Official pricing
Platforms —
Android
Listed in
Communication Enterprise Communication VoIP Call Center Software +1
CRM Call Tracking And Analytics Productivity CRM Software Mobile Call Recording Software Sales Tools Remote Team Management +4

About OpenPhone and CallSync

In their own words, as submitted to SaaSHub.

OpenPhone
CallSync

No description of OpenPhone yet.

CallSync is a business call tracking platform for phone-heavy teams. Each team member installs the CallSync Android app and keeps calling from their regular phone, SIM number and calling app — no new number, no VoIP system, no change in behaviour. After each call, the call details sync...

Read more about CallSync

Features and specs

What each product offers, as listed by its team.

OpenPhone 5 features
CallSync 11 features
  • Pricing
    OpenPhone offers competitive pricing, especially beneficial for small businesses and startups. The cost efficiency and value for money can be appealing for those looking for a budget-friendly communication solution.
  • User-Friendly Interface
    The platform boasts a user-friendly interface that simplifies the user experience. Setting up and managing phone lines is intuitive, with features easily accessible.
  • Integration Capability
    OpenPhone integrates seamlessly with various tools such as Slack, HubSpot, and Zapier, providing enhanced productivity and streamlined workflows.
  • Shared Numbers
    Teams can share numbers, allowing collaborative management of calls and messages, which is useful for departments like sales and support.
  • VoIP Technology
    Being based on VoIP, OpenPhone provides flexibility as you can make calls from anywhere with an internet connection, using various devices.

Possible disadvantages

  • Limited Advanced Features
    While OpenPhone covers basic needs, it may lack some advanced features found in more robust VoIP systems, such as detailed call analytics and comprehensive CRM integrations.
  • International Calling Costs
    The cost for international calls can be higher compared to some other VoIP providers, potentially increasing the expense for businesses with global operations.
  • Customization Limits
    There may be limitations in terms of customization options, which could be a concern for businesses looking for more tailored communication solutions.
  • Scalability for Large Enterprises
    OpenPhone might not scale as efficiently for very large enterprises with highly complex communication needs, where more established solutions could be more appropriate.
  • Dependence on Internet Quality
    As with any VoIP service, call quality can be heavily dependent on the strength and stability of the internet connection, which can be an issue in areas with poor connectivity.
  • Automatic call logging
    Incoming, outgoing and missed calls are logged automatically and synced after each call
  • Call recording backup
    Uploads recordings created by the phone's calling app to the cloud dashboard. CallSync itself does NOT record calls.
  • Missed call tracking
    Spot missed calls that nobody returned
  • Call notes & labels
    Add notes and labels on every contact
  • AI transcription & summary
    AI transcription and summary of recordings (add-on)
  • Team dashboard
    Central web dashboard with per-person calls and talk time
  • Daily team reports
    Daily team reports and call analytics
  • Webhooks + REST API
    Integrate call data with your own tools (add-on)
  • Dual-SIM support
    Track the work SIM only on dual-SIM phones
  • Privacy controls
    Personal numbers can be excluded, filtered on-device
  • Offline sync
    Call data syncs even when the phone was offline

Analysis

An editorial look at what each product does well and who it suits.

OpenPhone
CallSync

Overall verdict

  • OpenPhone is generally regarded as a reliable and effective communication tool, especially for startups, small to medium-sized businesses, and remote teams looking for an easy-to-use VoIP solution with robust features.

Why this product is good

  • OpenPhone is considered a good option for businesses and individuals seeking a modern VoIP service due to its user-friendly interface, integration capabilities with tools like Slack and HubSpot, and its ability to provide multiple phone numbers for various team members or projects. It also offers competitive pricing and flexible plans that can scale with a business's needs.

Recommended for

  • Startups and small businesses
  • Remote teams needing seamless communication
  • Individuals or teams that require multiple business phone numbers
  • Businesses seeking integration with CRM and productivity tools

No analysis of CallSync yet.

Videos

Walkthroughs and reviews on video.

OpenPhone 3 videos + Add
CallSync 0 videos + Add

OpenPhone

More videos

  • - How to get a business phone number on OpenPhone app
  • - OpenPhone Web App Overview

No CallSync videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
OpenPhone
CallSync
100% 100%
VoIP
0% 0%
0% 0%
Call Tracking And Analytics
100% 100%
100% 100%
Communication
0% 0%
0% 0%
Productivity
100% 100%

Questions & Answers

As answered by people managing OpenPhone and CallSync.

What makes your product unique?

CallSync's answer:

Unlike VoIP-based call trackers, CallSync needs no new number and no change in behaviour: each team member installs the CallSync Android app and keeps calling from their regular phone, SIM number and calling app. After each call, the call details sync automatically to a central web dashboard where managers can see who called whom, when, and for how long, listen to backed-up recordings, read notes and labels, and spot missed calls that nobody returned. It also supports dual-SIM phones (track the work SIM only) and privacy controls that exclude personal numbers on-device.

Why should a person choose your product over its competitors?

CallSync's answer:

Because the team does not have to change how it calls. With CallSync there is no new number to hand out and no VoIP system to adopt — everyone keeps using their regular phone, SIM number and calling app, and every call still gets logged, synced and visible on the team dashboard. You get automatic call logging, recording backup, missed-call tracking, notes and labels, AI transcription and summaries (add-on), a per-person team dashboard with talk time, daily reports, and webhooks plus a REST API (add-on). It runs on Android 7 and later, syncs offline, supports dual-SIM work numbers and keeps personal numbers private on-device.

How would you describe the primary audience of your product?

CallSync's answer:

CallSync is built for Indian SMBs and sales teams that run on mobile calls — real estate, sales agencies, trading, BPO and other field/telecalling teams. It suits any phone-heavy team where managers need visibility into who called whom, when, and for how long, without asking the team to change phones, numbers or calling habits.

User comments

Share your experience with using OpenPhone and CallSync. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

OpenPhone 5.0 · 1 review
CallSync no reviews yet
  • Easy to use, and just what we needed!
    SaaSHub review
    · Jul 2022

    I needed a 1800 number for my business, and paying for a second phone line and getting a second phone is overpriced for what I needed. for 10 bucks a month, OpenPhone allows me to have a 1800 number right on my own...

We have no reviews of CallSync yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

OpenPhone 11 mentions
CallSync 0 mentions
  • Near a Cheap Alternative to PublicMobile
    I usually use VOIP with openphone.com and use her phone when I am on the go... But now need a phone for something simple and was looking to sign up with Public mobile for the $15 / month my wife had, but NOW ITS GONE!!! Dang those bastards. Source: over 3 years ago
  • Need a permanent USA virtual phone number or virtual simcard capable of receiving sms when connected to DATA and/or WIFI. As cheap as possible.
    Google voice is free! If you need something with a little more power. Voip.ms, sipharmony.com, and openphone.com. Source: about 4 years ago
  • Favorite VOIP service?
    Hey – I'm one of the founders at OpenPhone so obviously biased here. I'm confident OpenPhone is the superior product and experience in every way. Would be happy to talk to you about it directly and show you a demo. Feel free to book a... Source: almost 5 years ago

View more

Tracking CallSync since Oct 2026.

Alternatives to OpenPhone and CallSync

When comparing OpenPhone and CallSync, you can also consider the following products.

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