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Head-to-head · Email Tracking Software

Outsolvi vs Mailproof

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Outsolvi #4 in Email Tracking Software 8.9/10 14-day trial Free trial✓ 2 of 4 features Visit Outsolvi
Mailproof #5 in Email Tracking Software 8.8/10 Free plan Free plan✓ 3 of 4 features Visit Mailproof

Outsolvi leads on 0 checks, Mailproof on 2, and 4 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreOutsolvi · 8.9/10
  • Lowest starting priceMailproof · $4.99/mo
  • Free planonly Mailproof
  • Free trialonly Outsolvi
  • Most featuresMailproof · 3 of 4

Outsolvi scores higher on our rubric for email tracking software: 8.9 against 8.8 out of 10; our editors rank them #4 and #5.

Mailproof offers free plan; Outsolvi doesn't. Mailproof is cheaper to start at $4.99/user/mo against $7/user/mo.

Outsolvi is the better fit for accurate tracking across Gmail and Outlook. Mailproof is the better fit for budget-conscious Gmail users tracking opens and clicks.

  • Outsolvi fits best

    Accurate tracking across Gmail and Outlook

  • Mailproof fits best

    Budget-conscious Gmail users tracking opens and clicks

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Outsolvi 8.9/10 Visit ↗ Mailproof 8.8/10 Visit ↗
At a glance
Editor score 8.9 8.8
Ranking #4 in Email Tracking Software #5 in Email Tracking Software
Best for Accurate tracking across Gmail and Outlook Budget-conscious Gmail users tracking opens and clicks
Pricing model Paid Free plan + paid
Starting price $7/user/mo $4.99/mo (best)
Free plan — ✓ (best)
Free trial 14 days —
Deployment Cloud, Browser extension Cloud, Browser extension
Platforms Web, Chrome extension Web, Chrome extension
Integrations 4 integrations 1 integrations
Features Outsolvi 2/4 · Mailproof 3/4
Open tracking ✓ ✓
Link tracking Not checked yet ✓ (best)
Reply tracking ✓ (best) Not checked yet
Activity alerts Not checked yet ✓ (best)
Specs
Email client support Not checked yet Gmail
CRM integrations Not checked yet 0
Our review
Pros
  • Confidence scoring filters scanners, previews, and self-re-reads
  • Tracks opens, clicks, replies, and attachment downloads
  • Sequences stop automatically when a recipient replies
  • Tracks email opens and link clicks in Gmail
  • Pro adds real-time tracking and alerts
  • Includes scheduling, templates, and detailed analytics
Cons
  • No free plan; the free trial lasts 14 days
  • The $7 entry price requires annual billing
  • Individual plan materials show conflicting tracked-email limits
  • Focused on Gmail rather than multiple email clients
  • Free plan has conflicting tracked-email limits
  • No CRM integrations or reply tracking listed
Our verdict

Outsolvi is email tracking software for individuals and teams working in Outlook or Gmail. It covers open, click, reply, and attachment-download tracking, then adds automated follow-up sequences, real-time notifications, reply sentiment…

Read the review →

Mailproof brings email open and link-click tracking to Gmail through a Chrome extension and website. It is aimed at sales representatives, recruiters, freelancers, founders, and other Gmail users who want visibility into recipient…

Read the review →
  1. OutsolviEmail Tracking Software 8.914-day trial
  2. MailproofEmail Tracking Software 8.8Free plan

Strengths and trade-offs

  • Outsolvi — where it wins

    • Confidence scoring filters scanners, previews, and self-re-reads
    • Tracks opens, clicks, replies, and attachment downloads
    • Sequences stop automatically when a recipient replies

    Where it doesn't

    • No free plan; the free trial lasts 14 days
    • The $7 entry price requires annual billing
    • Individual plan materials show conflicting tracked-email limits

  • Mailproof — where it wins

    • Tracks email opens and link clicks in Gmail
    • Pro adds real-time tracking and alerts
    • Includes scheduling, templates, and detailed analytics

    Where it doesn't

    • Focused on Gmail rather than multiple email clients
    • Free plan has conflicting tracked-email limits
    • No CRM integrations or reply tracking listed

More comparisons

All email tracking software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update