ChatGPT Services vs InboxPro
Explore the showdown between ChatGPT Services vs InboxPro and find out which AI Email Assistant tool wins. We analyze upvotes, features, reviews, pricing, alternatives, and more.
In a face-off between ChatGPT Services and InboxPro, which one takes the crown?
When we contrast ChatGPT Services with InboxPro, both of which are exceptional AI-operated email assistant tools, and place them side by side, we can spot several crucial similarities and divergences. There's no clear winner in terms of upvotes, as both tools have received the same number. The power is in your hands! Cast your vote and have a say in deciding the winner.
Feeling rebellious? Cast your vote and shake things up!
ChatGPT Services

What is ChatGPT Services?
ChatGPT Services hosts Gmail add-ons from Klart AI that write, translate, summarize, and analyze email inside your inbox. AI Mail Assistant adds reply generation, draft polishing, 13-language translation, ChatGPT Q&A, and tone or ethics analysis to Gmail through the Google Workspace Marketplace.
Unlike standalone ChatGPT tabs, these tools live in Gmail's sidebar so you generate replies, insert drafts, and translate threads without switching apps. A separate AI Label Assistant product auto-labels and archives mail on an hourly schedule using your existing Gmail labels, with custom instructions when label titles alone are not specific enough.
The suite also includes Klart Prompts for GPT, Midjourney, and reverse prompt engineering. Plans start with 10 free AI Mail Assistant requests per month, paid tiers from €4.99 monthly, and Stripe or PayPal billing with cancel-anytime subscriptions.
InboxPro

What is InboxPro?
InboxPro is an email assistant built around a Gmail browser extension that bundles outreach, scheduling, and inbox analytics in one workflow. You get GPT-3 powered Magic Compose and Summarize inside Gmail, plus follow-up sequences, merge tags, open and link tracking, saved templates, and a built-in booking calendar. The product targets sales reps and small teams who live in Gmail and want fewer tabs open.
Where most Gmail add-ons pick one job, InboxPro stacks prospecting and closing tools together. Mailtrack-style tracking, Lemlist-style sequences, and Calendly-style scheduling all sit behind the same dashboard, with a free tier that still includes limited AI writing. That breadth trades depth in any single category for a single login and one contact list.
Salespeople, founders doing outbound, and customer success reps who send repetitive follow-ups get the most from it. Import contacts from Gmail, personalize with merge tags, automate multi-step sequences, and let prospects book meetings from a public calendar page connected to Google, Office 365, Outlook, or iCloud.
ChatGPT Services Upvotes
InboxPro Upvotes
ChatGPT Services Top Features
AI Mail Assistant generates Gmail replies, summaries, and draft improvements powered by GPT-4 and GPT-4o
Built-in translation covers 13 languages for both incoming mail and outgoing drafts
Email analysis flags sarcasm, harassment, discrimination, mobbing, and ethical issues in threads
AI Label Assistant auto-labels mail hourly with up to 20 custom labels and optional auto-archiving
Free AI Mail Assistant tier includes 10 requests per month across all compose features
Klart Prompts Pro adds unlimited GPT, Midjourney, and reverse prompt engineering generators
InboxPro Top Features
Magic Compose and Summarize run inside Gmail using GPT-3, with AI writing available even on the free plan
Free plan includes 250 monthly emails, 1 automated sequence, and a 100-email daily send cap
Paid Basic plan at $10 per month (billed yearly) unlocks 5,000 monthly emails and 10 AI-written emails per day
Follow-up sequences support play and stop controls, merge tags, and shared templates across team plans
Built-in calendar scheduling connects to Google, Office 365, Outlook, and iCloud with overlap-free booking
Email tracking sends real-time notifications when recipients open messages or click links
Email analytics reports sent and received volume, top-performing emails, and busy hours from Gmail activity
ChatGPT Services Category
- Email Assistant
InboxPro Category
- Email Assistant
ChatGPT Services Pricing Type
- Freemium
InboxPro Pricing Type
- Freemium
