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Lifetime DealActiveOtherCustomer SupportHelpdesk & Ticketing

C3 Mailime — Omnichannel customer messaging inbox

Our rating — 4/5

Tool Overview

Customer messages arrive across WhatsApp, Instagram, Facebook, email, and live chat. Juggling them across separate apps means conversations get missed and response times suffer. C3 Mailime is an omnichannel inbox that pulls every conversation into one shared workspace. It includes WhatsApp broadcast campaigns, SLA tracking, CSAT surveys, automation rules, and team performance analytics.
From$59
CodeKMCM10
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Date added June 25, 2026

Our Take on C3 Mailime

C3 Mailime covers the basics of omnichannel customer messaging well: unified inbox, WhatsApp campaigns, SLA tracking, and team analytics. The flat pricing with no per-message fees is a clear advantage over competitors like Respond.io and Wati that charge based on message volume.

One client reportedly saw a 42% increase in returning customers within 60 days, though that’s a single data point from the vendor. The product has a demo available at demo.c3mailime.com for hands-on evaluation.

The WhatsApp-first approach makes it a strong fit for markets where WhatsApp is the primary customer communication channel. The iOS and Android apps provide mobile coverage, though the product is still relatively new in a competitive category.

At a Glance

What stands out
Flat pricing with no hidden per-message or per-conversation fees, unlike competitors that charge based on message volume.
WhatsApp broadcast campaigns with template management and one-click reopening of expired 24-hour conversation windows.
Built-in SLA tracking automatically monitors response and resolution times without manual spreadsheet management.
Native iOS and Android apps keep the full support inbox accessible from mobile devices.
Things to note
The WhatsApp integration requires a Meta Business-verified account and WhatsApp Business API, which has its own approval process.
The product is relatively new in a competitive category with established players like Respond.io, Wati, and SleekFlow.
AI-powered features rely on OpenAI integration, so AI writing assistance quality depends on the underlying model.
Contact limits apply to Tier 1 (2,000) and Tier 2 (10,000), which may be restrictive for businesses with large customer bases.

Tiers Comparison

FeatureTier 1Tier 2Tier 3
Price$59$119$229
Agents515Unlimited
Inboxes38Unlimited
Contacts2,00010,000Unlimited
All Core Features✔️✔️✔️
Best ForSmall teams with limited contactsGrowing businesses with multiple channelsAgencies and large teams

Deal Details

Deal TypeLifetime Deal
Current Price$59
Refund Policy30-day guarantee
PlatformOther
Founded2024
Team Size1-10
HeadquartersIndia
FundingBootstrapped

What's Included in the deal

All Tiers Include
Unified inbox for all channels
WhatsApp broadcast campaigns
SLA tracking and CSAT surveys
Automation rules and macros
Team analytics and reporting
iOS and Android apps
Scales by Tier
Agents (5 to unlimited)
Inboxes (3 to unlimited)
Contacts (2,000 to unlimited)

Founder and Company Information

C3 Mailime is built by a team based in India focused on solving the fragmented customer communication problem for small and medium businesses.

The platform was designed with a WhatsApp-first approach, reflecting the messaging channel’s dominance in many global markets. The team maintains a public roadmap and demo environment for evaluation.

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C3 Mailime's Key Features

Unified Inbox — Manages WhatsApp, Instagram, Facebook, email, and live chat conversations from one shared workspace.
WhatsApp Campaigns — Sends broadcast messages to contact lists using approved templates with audience segmentation.
SLA Management — Tracks response and resolution times against configurable targets and monitors breaches in real time.
CSAT Surveys — Collects customer satisfaction scores and feedback comments with response rate analytics.
Automation Rules — Auto-assigns conversations based on channel, keywords, or customer attributes and applies labels automatically.
Team Analytics — Monitors agent performance including first response time, resolution time, and conversation volume.

C3 Mailime's Use Cases

Customer support teams at small and medium businesses that receive messages across WhatsApp, Instagram, and Facebook daily.
Restaurants, retail shops, and e-commerce stores where WhatsApp is the primary channel for orders and customer inquiries.
Marketing agencies managing customer communications for multiple clients who need shared inbox and team assignment features.
Support managers who need SLA tracking and CSAT measurement without building custom reporting in spreadsheets.

Watch it in action

Similar Alternatives to C3 Mailime

Respond.io
Omnichannel messaging platform with AI-powered conversation routing and CRM integrations for sales and support.
Wati
WhatsApp Business API platform with broadcast messaging, chatbot builder, and team inbox.
SleekFlow
Social commerce and messaging platform with WhatsApp, Instagram, and Facebook integration for sales teams.
Chatwoot
Open-source customer engagement platform with live chat, email, and social media inbox.

User Reviews for C3 Mailime

(Based on product analysis)
★★★★☆
The unified inbox works well for teams drowning in messages across multiple channels. Having WhatsApp campaigns and SLA tracking built in saves subscribing to separate tools.
(Based on product analysis)
★★★★☆
Flat pricing without per-message fees is refreshing in a category where costs can spiral quickly with high message volumes.
(Based on product analysis)
★★★☆☆
The product is functional but still maturing. Compared to established players like Respond.io, the feature depth in areas like advanced automation and analytics is more limited.
(Based on product analysis)
★★★☆☆
Contact limits on Tier 1 and Tier 2 could become restrictive quickly for businesses with growing customer bases.

Here's what our community thinks about C3 Mailime

Here's what people are asking about C3 Mailime (FAQs)

Does C3 Mailime support WhatsApp Business API?
Yes. C3 Mailime integrates with WhatsApp Business API for both inbox management and broadcast campaigns. You'll need a Meta Business-verified account to connect WhatsApp.
Can I reopen expired WhatsApp conversations?
Yes. WhatsApp has a 24-hour messaging window for customer-initiated conversations. C3 Mailime lets you reopen expired windows with one click using approved message templates.
Is there a mobile app?
Yes. C3 Mailime has native iOS and Android apps that provide full access to the shared inbox, conversation management, and internal notes from mobile devices.
How does SLA tracking work?
You set response and resolution time targets for your team. C3 Mailime automatically tracks every conversation against those targets and alerts you to potential breaches before they happen.
Can I automate conversation routing?
Yes. Automation rules can assign conversations to specific agents or teams based on channel, keywords, customer attributes, or other criteria. You can also apply labels and trigger canned responses automatically.
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