On this page
In short
- A shared inbox lets a team answer one WhatsApp number together; the real differences are in how conversations get assigned, whether a slow first response is flagged, and whether two agents can collide on the same chat
- Nine tools compared on the same terms: VGraple CRM, Wati, Interakt, Gallabox, DoubleTick, Zoko, Respond.io, SleekFlow and Trengo
- Several of these are strong inboxes with no confirmed SLA-breach alert or collision-warning feature on their public pages; where a capability could not be verified, it is marked "not published" rather than assumed
A shared inbox is the first thing most businesses actually buy when they say they want a "WhatsApp CRM": one number, several agents, and some way of making sure a lead does not sit unanswered because everyone assumed someone else replied. Nearly every platform in this category ships one, so the marketing pages tend to look interchangeable at a glance, a screenshot of a chat list with a few colored tags. The differences that matter show up underneath that screenshot: how a new conversation actually gets assigned, whether the tool warns you before a customer has been waiting too long, whether two agents can silently collide on the same chat, and what channels beyond WhatsApp the same inbox actually covers. This guide compares nine shared inbox tools, VGraple CRM among them, on those specifics. Figures below come from each vendor's own pricing and feature pages, checked 26 August 2026, or from VGraple CRM's own verified feature documentation published the same date; where a capability could not be confirmed from a public page, it is marked "not published" rather than assumed.
How we picked and compared these nine
We selected the tools a business actually shortlists when comparing WhatsApp shared inboxes: the four large India-based platforms (Wati, Interakt, Gallabox, DoubleTick), the Shopify-focused commerce inbox (Zoko), and the three global multichannel conversation platforms most often considered by teams with customers beyond WhatsApp (Respond.io, SleekFlow, Trengo). Each is scored on six questions: how are new conversations assigned, is there a documented SLA or breach alert, is there a documented collision warning, which channels does the same inbox cover beyond WhatsApp, is a mobile app included, and what pricing model does the business actually pay under. VGraple CRM is scored on the same six questions as every other tool, with no capability claimed unless it is documented on a public page.
The matrix
| Tool | Assignment method | SLA alerts | Collision detection | Channels beyond WhatsApp | Mobile app | Pricing model |
|---|---|---|---|---|---|---|
| VGraple CRM | Auto-assign by fewest open chats, plus manual reassignment | Yes, per-org first-response target with breach alert | Yes, live warning naming the other agent | Instagram DM (+ story replies/mentions), Messenger, web chat | Android (Play Store); no iPhone app, mobile web on iOS | Flat plans by seats/contacts/conversations |
| Wati | "Organize Teams" (mechanism not detailed on public pages) | Not published | Not published | Website chat, Instagram, Facebook, SMS, calls | Not confirmed | Per-user tiers plus credits and add-ons |
| Interakt | Auto-chat assignment (named on homepage, mechanism not detailed) | Not published (agent/conversation analytics referenced) | Not published | Instagram, RCS | Not confirmed | Feature tiers by channel; separate Sales CRM add-on |
| Gallabox | "Assign conversations diligently," AI-powered compose box | Not published | Not published | Instagram, AI voice, web chat | Not confirmed | User and AI-credit tiers, quarterly billing |
| DoubleTick | Team hierarchy and reminders referenced; mechanism not detailed | Not published | Not published | Not fully confirmed on pages checked | Not confirmed | User tiers, no published self-serve prices |
| Zoko | Not published (no dedicated shared-inbox marketing page; documented in a blog post instead) | Not published | Not published | Facebook, Instagram | Not confirmed | Conversations-included tiers plus per-conversation fee |
| Respond.io | Not published in detail on public pages | Not published | Not published | Messenger, Instagram, Telegram, Line, Viber, TikTok, SMS, email | Not confirmed | Monthly Active Contacts (MAC) |
| SleekFlow | "AI and human team on same page" (mechanism not detailed) | Not published | Not published | Multichannel, not itemised beyond WhatsApp in public pages checked | Not confirmed | Monthly Active Contacts (MAC) |
| Trengo | Collaboration features referenced in comparison table; mechanism not detailed | Not published | Not published | Instagram, Messenger, email, voice (by plan) | Not confirmed | Flat tiers by users and conversations/year |
VGraple CRM
VGraple CRM's inbox auto-assigns a new conversation to the agent with the fewest open chats, with manual reassignment always available, and is one of the only tools in this comparison to document both a collision warning and an SLA breach alert directly on its feature page.
Strengths: a live collision warning naming the teammate already viewing a conversation, a per-organisation first-response SLA target tracked per conversation with a breach alert, WhatsApp plus Instagram DMs (including story replies and mentions), Messenger and web chat in the same inbox, and a Free plan with no time limit for a first agent to try it on.
Weaknesses: no iPhone app, only Android and mobile web; a smaller published channel list than Respond.io's nine-channel spread; and a newer public review presence than Wati or Gallabox.
Best for: a small-to-mid-size team that wants assignment, collision warnings and SLA tracking working out of the box, without configuring a separate helpdesk tool on top of the inbox.
Wati
Wati's Shared Team Inbox page is one of its longest (2,800 to 3,200 words including multilingual repetition), built around organising teams, managing contacts and AI-assisted translation, but the page itself carries no FAQ section, unusual for content of that depth.
Strengths: deep documentation elsewhere on the site, four named customer testimonials on the inbox page specifically, AI-powered translation for replying across languages, and a large integrations help collection (84 articles) covering CRM and payment-gateway connections.
Weaknesses: no SLA or collision-detection feature stated anywhere on the inbox page; assignment is described only at the level of "organize teams," with no detail on the actual assignment mechanism; and message charges for broadcast use link out to an external rate card rather than showing INR figures on the page itself.
Best for: a team that already relies on Wati's broader ecosystem (its academy, its large help centre) and does not need a documented SLA-breach alert specifically.
Interakt
Interakt folds its shared inbox into a combined "Customer Support Automation" page alongside chatbots, positioning the inbox as one piece of a broader support automation product rather than a standalone feature.
Strengths: auto-chat assignment named directly on the homepage, agent and conversation analytics, a real free tier (Instagram-only, unlimited time), and 60-plus listed integrations, several aimed at e-commerce support workflows.
Weaknesses: the free tier does not cover WhatsApp, only Instagram; no SLA-breach alert or collision-detection feature is stated on public pages; and its CRM pipeline is a separately sold product (Sales CRM, Rs 2,499/month) rather than bundled with the inbox.
Best for: a business already using Interakt for Instagram support that wants WhatsApp folded into the same inbox, and does not need SLA alerts specifically documented.
Gallabox
Gallabox's WhatsApp Team Inbox page is its longest feature page (3,200 to 3,500 words), built around an AI-powered compose box and three named customer mini-case-studies with quantified productivity gains.
Strengths: an AI-assisted compose box aimed at agent productivity, three named case studies with metrics (including a claimed 25% increase in team productivity), pipeline management on its higher tiers, and enterprise-recognisable client logos (Tata 1mg, Shiprocket, Apollo Hospitals).
Weaknesses: no free plan, only quarterly or annual billing from the first paid tier; its Basic plan hard-caps at 3 users with no add-ons permitted at all; and no SLA-breach or collision-detection feature is stated on its public inbox page.
Best for: a team that wants AI-assisted reply drafting inside the inbox and is comfortable with quarterly billing from day one.
DoubleTick
DoubleTick's shared team inbox page is, by a wide margin, the thinnest feature page of any tool reviewed here, at roughly 800 to 900 words, notably terse next to its own 2,800-word broadcasting page and the 2,800-to-3,500-word inbox pages published by Wati, Interakt and Gallabox.
Strengths: a customer information panel shown alongside the conversation, referenced team hierarchy and reminder features, and heavy compliance/trust badging elsewhere on the site (ISO 27001, GDPR, SOC 2) for a business that weighs that alongside inbox features.
Weaknesses: the shared-inbox page carries no FAQ section at all; no SLA or collision-detection feature is stated; and DoubleTick publishes no self-serve prices anywhere on its site, so a business has to book a demo before it can compare cost at all.
Best for: a sales-led team already drawn to DoubleTick's AI-governance and compliance-alert tooling elsewhere in the product, comfortable booking a demo to get a price.
Zoko
Zoko has no dedicated shared-inbox marketing page at all; the topic is instead covered in a blog-style post ("What is Shared WhatsApp Inbox?") that blends explainer content with an embedded case study, a structurally different content model from the other eight tools in this comparison.
Strengths: a genuine WhatsApp catalogue tied to Shopify's product feed sits alongside the inbox for a commerce-focused team, and the embedded Purplle case study gives a concrete usage example rather than an abstract feature list.
Weaknesses: no assignment mechanism, SLA feature, or collision-detection feature is described anywhere in the available content; no dedicated feature page means less depth to evaluate against than any other tool here; and it charges its own per-conversation platform fee on top of Meta's pass-through rate.
Best for: a Shopify or D2C brand whose main WhatsApp use case is catalogue browsing and order support, where the inbox is secondary to the commerce features.
Respond.io
Respond.io's inbox spans the widest channel set of any tool in this comparison, WhatsApp, Messenger, Instagram, Telegram, Line, Viber, TikTok, SMS and email, positioning it as a genuine omnichannel conversation platform rather than a WhatsApp-specific inbox with other channels bolted on.
Strengths: the broadest confirmed channel coverage of the nine, a large integrations directory (around 45 listed), 10,000-plus customers and a 4.8 out of 5 rating from 500-plus G2 reviews, and a mature help centre with a dedicated "Product" category covering inbox mechanics in more depth than most competitors publish.
Weaknesses: no SLA-breach alert or collision-detection feature is stated in the research available; it bills by Monthly Active Contacts with overage at $12 to $15 per 100 MACs once a plan's included allowance is exceeded; and it has no native CRM pipeline, since it is positioned as a conversation-management platform rather than a sales CRM.
Best for: a global support team that genuinely needs Telegram, Line or Viber alongside WhatsApp in the same inbox, and can absorb MAC overage as contact reach grows.
SleekFlow
SleekFlow's Inbox feature page is comparatively lean (around 1,200 words), framed around bringing an AI and a human team onto the same conversation view rather than detailing assignment mechanics in depth.
Strengths: an AgentFlow AI layer sitting alongside the human inbox for inbound triage, G2 Winter High Performer and Leader badges, and 2,000-plus enterprises across 70 countries claimed on its homepage.
Weaknesses: no SLA, collision-detection, or assignment-mechanism detail is published on the inbox page itself; the page carries no FAQ section; and, like Respond.io, it bills by Monthly Active Contacts, so cost grows with contact reach rather than staying flat as a team adds agents.
Best for: a multichannel sales team, particularly one operating across Southeast Asian markets, that wants an AI-agent layer alongside the inbox and is comfortable with MAC-based billing.
Trengo
Trengo's WhatsApp Business product page runs 2,800 to 3,200 words and positions the inbox as one part of a broader customer-engagement platform spanning sales, commerce and support use cases, with the most granular published comparison table of the nine (40-plus attributes across collaboration, management, AI/automation, security and channels).
Strengths: the most detailed public feature-comparison table of any tool reviewed here, 12 FAQs on the WhatsApp product page itself, a dedicated separate landing page for WhatsApp marketing distinct from the inbox page, and a large integrations directory (60-plus, tagged by industry and by internally-maintained versus partner-built).
Weaknesses: no SLA-breach alert or collision-detection feature is named specifically, even inside its detailed comparison table's "Collaboration" row; conversations are billed per year with add-on pricing per 100 over the included allowance; and pricing is in euros, adding a currency-conversion step for an India-based buyer.
Best for: a business that wants to see the most granular published feature-comparison matrix before buying, and does not mind euro-denominated pricing.
How to choose
Start by testing assignment with your own team's actual conversation volume, not a demo account with three sample chats: ask each shortlisted vendor directly how a new conversation is assigned when three agents are online, since "not published" here often means the mechanism exists but is not documented anywhere public, and a live demo is the only way to see it work. Then ask about SLA and collision handling by name, since almost none of the tools in this comparison state these features on a public page even where the underlying product may have something similar; do not assume a feature exists just because a competitor is otherwise feature-rich. Weigh channel breadth against what your business actually uses today rather than what it might use eventually, since paying for Telegram, Line and TikTok coverage you will not touch this year is a real cost under a MAC-based pricing model. Finally, if your team already leans on a phone-based WhatsApp Business app workflow, ask specifically whether the inbox tool supports coexistence, keeping the app and the shared inbox running on the same number at once, since several of the tools in this comparison do not document this path at all.
Switching to a different shared inbox later
Moving a shared inbox between platforms is, in practice, mostly a WhatsApp Business Account question rather than an inbox-feature question: as long as your account sits in your own Meta Business Portfolio, reconnecting it to a new inbox through Meta's Embedded Signup takes minutes, and conversation history inside the old tool does not carry across since that history lives in the previous platform's own database, not in Meta's records. The full migration guide covers the WABA ownership check, the two-step PIN some vendors hold on your behalf, template resubmission, and a parallel-run week before fully cancelling the old tool, in detail.