Ranked List5 tools comparedUpdated May 31, 2026

Best Outlook Email Tracker with AI Follow-Up

AI help with follow-up matured in 2025 and became a deciding feature for AE evaluations in 2026. Drafting the follow-up, labelling the replies that come back, and flagging the leads worth chasing all moved from vendor-pitch theatre to real features that affect rep workflow. The remaining question is which of these features sit at the base tier of which tools, and which are gated behind $30 plus per-seat premium.

This ranking is for Outlook AE teams who want AI follow-up help included at the base tier without buying into a $35 to $150 per-seat platform. Five options that run on Outlook (Desktop, Web, New Outlook) ranked by AI feature depth at base pricing.

TL;DR

Outsolvi grades every open as a person or a machine, labels replies, flags hot leads and drafts follow-ups with AI, all at the $7 yearly base tier. HubSpot Sales Hub has stronger AI but locks it behind Sales Pro at $90 per seat. Yesware locks AI behind Premium at $35 per seat yearly. Mailbutler and Cirrus Insight are productivity-first with lighter AI.

How we ranked these tools

Each tool was evaluated against four criteria: AI features included at base tier (40%), native Outlook support including Desktop, Web, and New Outlook (25%), tracking accuracy in 2026 (Apple MPP filtering, scanner detection) (20%), per-seat math at 5-rep team yearly (15%). Tools that gate AI behind premium tiers were ranked lower even where the AI itself is high quality. Tools that do not run natively on Outlook were excluded.

We make Outsolvi, and it's on this list. Every tool here, ours included, was scored on the criteria above, so weigh the ranking knowing who wrote it.

At a glance

Rank	Tool	Starting price	Best for
#1	Outsolvi	$7/user/mo yearly, $12/mo monthly	Outlook AE teams who want AI-written follow-ups at base pricing without premium upgrade.
#2	HubSpot Sales Hub	Free + paid tiers	Teams already on HubSpot CRM willing to pay Sales Pro tier for the AI layer.
#3	Yesware	Free plan	Salesforce teams who want templates and campaigns alongside tracking.
#4	Mailbutler	Starter free; Professional $7, Smart $11, Business $24 per user per month yearly.	Individuals on Mac who want an AI email assistant more than a sales tracker.
#5	Cirrus Insight	Per feature seat; Buyer Signals (tracking) is $10/user/mo on its pricing page.	Salesforce-tight teams who want CRM-embedded tracking with light AI.

Click any tool to jump to the full breakdown below.

Outsolvi

AI-written follow-ups, reply labels and hot-lead detection all included at the $7 base tier, native Outlook plus Gmail.

Best for

Outlook AE teams who want AI-written follow-ups at base pricing without premium upgrade.

Pros

Write with AI drafts a follow-up in the tone you pick, at base tier, and you edit it before it's scheduled
Hot-lead flag at five counted opens and two clicks on one email, at base tier
Replies labelled Positive, Negative, Neutral or Out of office by keyword rules, at base tier
Native Outlook (classic, web and new Outlook) plus Gmail
Every open graded as a person or a machine, so Apple MPP and scanner hits stay out of the count

Cons

•AI is limited to drafting follow-ups; no AI reply analysis or deal insight like HubSpot's
•No conversation intelligence (call recording analysis) at any tier

Pricing

$7/user/mo yearly, $12/mo monthly. All AI features at base tier.

Verdict

Best per-seat math on this list for AI follow-up help on Outlook. Structural fit for AE teams who don't want to buy into a full CRM ecosystem.

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HubSpot Sales Hub

Strong AI tied to HubSpot CRM, AI features gated behind Sales Pro tier.

Full comparison

Best for

Teams already on HubSpot CRM willing to pay Sales Pro tier for the AI layer.

Pros

Mature AI (HubSpot Breeze) with strong conversation intelligence
Deep CRM integration. AI signals appear directly on deal records
Email reply intent classification, deal-risk scoring, summarization

Cons

•AI features require Sales Pro at $90/user/mo or Sales Enterprise at $150
•Free tier and Starter tier do not include the meaningful AI features
•Per-seat cost compounds at team scale

Pricing

Free tier (no AI); Sales Starter at $7 yearly ($10 monthly); Sales Pro at $90; Sales Enterprise at $150.

Verdict

Right answer if HubSpot CRM is already paid for and the team can absorb Sales Pro pricing. Standalone for AI, the math doesn't work.

Yesware

An established Outlook and Gmail tracker with templates, campaigns and Salesforce sync.

Full comparison

Best for

Salesforce teams who want templates and campaigns alongside tracking.

Pros

Templates with merge fields and a meeting scheduler on Pro
Unlimited campaigns and shared templates on Premium
Salesforce sync of sent emails, replies and calendar from Premium

Cons

•Yesware's pricing page doesn't list AI drafting of follow-ups
•Unlimited campaigns and Salesforce sync start on Premium, at $35 a user a month billed yearly
•New Outlook isn't in Yesware's list of supported clients, and on a Mac only legacy Outlook works

Pricing

Free plan. Pro $15/user/mo yearly or $19 monthly. Premium $35 or $45. Enterprise $65 or $85.

Verdict

Pick Yesware Premium if Salesforce sync is non-negotiable. If the job is AI-drafted follow-ups in Outlook, that isn't something Yesware lists.

Mailbutler

Productivity-focused tool with AI assistant features at higher tiers.

Full comparison

Best for

Individuals on Mac who want an AI email assistant more than a sales tracker.

Pros

Works on Apple Mail, Outlook (Desktop, Web), Gmail
Smart Send Later and email tracking on Professional tier
AI assistant for summarization and reply drafting on Smart tier

Cons

•AI features locked behind Smart tier at $11/user/mo yearly
•Productivity-first, not built for AE workflows
•Limited team-level reporting

Pricing

Starter free; Professional $7, Smart $11, Business $24 per user per month yearly.

Verdict

Useful as a productivity assistant. Less of a fit for full AE tracking workflow.

Cirrus Insight

Salesforce-native Gmail and Outlook integration with email tracking and engagement features.

Full comparison

Best for

Salesforce-tight teams who want CRM-embedded tracking with light AI.

Pros

Deep Salesforce sync, emails appear directly in Salesforce records
Works on Outlook (Web, Desktop) and Gmail
Sync of meeting and calendar data

Cons

•AI features are limited compared to HubSpot or dedicated AI trackers
•Pricing is per feature seat; Buyer Signals (tracking) alone is $10/user/mo
•Open tracking reports raw counts

Pricing

Per feature seat; Buyer Signals (tracking) is $10/user/mo on its pricing page.

Verdict

Right fit for Salesforce-bound teams who care more about CRM sync than AI depth.

Frequently asked questions

What AI features actually matter in 2026 for AE follow-up?+

Three matter most, whether a tool uses AI or plain rules for them: (1) drafting the follow-up, so the rep starts from a draft that fits the thread instead of a blank page, (2) reply labelling, does the inbound reply read positive, negative, neutral or out of office, (3) hot-lead detection, a flag on the emails getting repeated real opens and clicks. Outsolvi drafts follow-ups with AI and handles the other two with fixed rules. Conversation intelligence (call recording analysis) matters for some teams but is a separate tool class.

Why is Outsolvi's AI at base tier when others gate it behind premium?+

Outsolvi was built for the AE workflow, where help writing the follow-up is a baseline expectation, not a premium add-on. The pricing model reflects that: Write with AI is on the $7 yearly Individual plan rather than held back for a higher tier. Larger incumbents (Yesware, HubSpot) have legacy pricing structures where AI was originally a premium upgrade and the bundling has not been simplified.

Is HubSpot's AI better than Outsolvi's?+

On conversation intelligence (call recording analysis), yes. HubSpot Sales Pro includes that and Outsolvi does not. On email-specific AI, HubSpot does more as well. Outsolvi's AI drafts follow-ups in the tone you pick, and you edit them before they're scheduled; its reply labels and hot-lead flag run on fixed rules rather than AI. What Outsolvi adds is graded opens, so the follow-up goes to the people who actually read.

What does the AI cost work out to at team scale?+

10 reps on Outsolvi Pro yearly = $2,400/year, Write with AI included. Same 10 reps on HubSpot Sales Pro = $10,800/year. Same on Yesware Premium = $4,200/year. The choice between Outsolvi and HubSpot at team scale is usually whether the team needs full CRM ecosystem (favor HubSpot despite cost) or tracking plus AI standalone (favor Outsolvi for the $8,400/year savings).

Does AI reply sentiment actually work or is it marketing?+

For clear positive and negative replies, sorting works well whichever method a tool uses. The harder case is the middle band, neutral, stalling, or polite-no replies. Outsolvi doesn't use AI here: keyword rules label each reply Positive, Negative, Neutral or Out of office, with no confidence number, so reps should read the middle band themselves.

Does Outsolvi work in New Outlook (the rebuilt client)?+

Yes. The web add-in tracks in New Outlook and Outlook on the Web for Microsoft 365 work or school accounts. Classic Outlook uses a separate desktop add-in. This is unusual, many older trackers struggled with the New Outlook migration.

How to read this ranking

The AE buying pattern shifted in 2025 from 'do you have AI features' to 'are the AI features included or premium-gated'. By 2026, sales leaders running per-seat math at 10 to 50 reps reject premium-gated AI as a structural cost problem. The economic argument is simple: 25 reps × $90/mo HubSpot Sales Pro = $27,000/year. 25 reps × $20/mo Outsolvi Pro = $6,000/year. The $21,000 annual delta goes a long way toward a junior SDR.

The right structural decision is to pay premium pricing only when the AI is meaningfully better in ways that affect close rates. For email follow-up in 2026, the meaningful-difference argument is weak: a drafted follow-up, a reply label and a hot-lead flag do the same job whichever tool produces them. The differentiator is platform support (native Outlook add-ins) and pricing posture (AI at base tier).

Ready to try the #1 pick?

Outsolvi includes graded opens, hot-lead detection, reply labels and AI-written follow-ups at the $7/user/mo yearly tier. Outlook add-ins and a Gmail extension. Free trial of 14 days or 250 tracked emails, no credit card.

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Nate SummersCo-Founder, Outsolvi

Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi grades every open as a person or a machine, in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.

Last reviewed May 31, 2026Editorially independent

We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.

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