ALWAYS ON
24/7 monitoring on every plan
Marketplace Monitor's mid tier monitors for 15 hours a day. Underpriced listings get posted late at night and are often the least contested. DealSonar watches around the clock on every plan.
DEALSONAR VS MARKETPLACE MONITOR
DealSonar vs Marketplace Monitor: breadth of platforms or depth on the ones that pay?
Marketplace Monitor covers nine marketplaces. DealSonar covers four (Facebook Marketplace, Vinted, eBay, OfferUp) and goes deeper on each, with sold comps, profit maths and round-the-clock monitoring on every plan.
SHORT ANSWER
If you genuinely source across Craigslist, Kijiji, Depop and Shpock, Marketplace Monitor has the widest coverage in the category. If your buying happens on Facebook Marketplace, Vinted, eBay and OfferUp, DealSonar gives you more on those four: sold comps, profit after fees, 24/7 monitoring on every plan, and a browser dashboard rather than a phone app.
Side by side
Entry price
- DEALSONAR
- £25/mo
- MARKETPLACE MONITOR
- around $24.99/mo
Top tier
- DEALSONAR
- £99/mo
- MARKETPLACE MONITOR
- around $169.99/mo
Marketplaces
- DEALSONAR
- Facebook, Vinted, eBay, OfferUp
- MARKETPLACE MONITOR
- Nine, including Facebook, Gumtree, OfferUp, eBay, Craigslist, Kijiji, Depop, Vinted, Shpock
Monitoring hours
- DEALSONAR
- 24/7 on every plan
- MARKETPLACE MONITOR
- 15 hours a day on the mid tier
Runs in
- DEALSONAR
- Any browser, nothing to install
- MARKETPLACE MONITOR
- iOS / Android app
eBay sold comps
- DEALSONAR
- Yes, low / median / high from recent solds
- MARKETPLACE MONITOR
- No (monitors eBay listings only)
Profit calculator
- DEALSONAR
- Built-in calculator (fees + postage)
- MARKETPLACE MONITOR
- No
AI junk filtering
- DEALSONAR
- AI filter drops wrong models, parts-only, and buyer ads
- MARKETPLACE MONITOR
- AI scanning for listings
Alert channels
- DEALSONAR
- Dashboard, Email, Discord, Telegram
- MARKETPLACE MONITOR
- Push notifications
Support model
- DEALSONAR
- Email (Priority on Pro and Scale) + Discord community
- MARKETPLACE MONITOR
- Dedicated account manager
Updated September 2026. Marketplace Monitor figures from its public pricing page, App Store and Google Play listings. Its custom package calculator means real prices vary by configuration. DealSonar is not affiliated with Marketplace Monitor.
Four platforms, done properly
DEPTH OVER BREADTH
Nine marketplaces you do not use is not coverage
For many resellers, Facebook Marketplace, Vinted, eBay and OfferUp carry the volume. DealSonar spends effort on matching quality, sold comps and profit maths for those four rather than spreading thin across nine.
THE NUMBERS
Resale value arrives with the alert
Marketplace Monitor tells you a listing appeared. DealSonar can show what the item sold for on eBay recently and what you would clear after fees and postage, in the same workflow.
BEING STRAIGHT WITH YOU
When Marketplace Monitor is the better choice
- You source across many platforms. Nine marketplaces, including Depop, Shpock, Kijiji and Craigslist, is real coverage that DealSonar does not match.
- You want a named account manager. Marketplace Monitor assigns one and supports seven days a week. DealSonar offers email support (Priority on higher plans) and a Discord community.
- You want to buy coverage per marketplace. Its pricing calculator lets you build a custom package, which suits an unusual mix of platforms better than fixed tiers.
FAQ
Does Marketplace Monitor include eBay sold comps?+
It can monitor eBay for new listings, but it does not attach completed-sale comps or a profit figure to alerts. That is the gap DealSonar fills.
Which covers more marketplaces?+
Marketplace Monitor, clearly. Nine platforms against DealSonar's four. Whether that matters depends on where you actually buy.
What does 15 hours a day mean in practice?+
On Marketplace Monitor's mid tier, alerts stop for part of each day. Listings posted in that window may reach you late or not at all. DealSonar monitors 24/7 on every plan.
Is DealSonar a mobile app?+
No. It runs in any browser. Alerts come to Dashboard, Email, Discord or Telegram, so you get them on your phone without installing anything.
Four marketplaces, with the profit maths done
Facebook Marketplace, Vinted, eBay and OfferUp, monitored 24/7, with eBay sold comps and profit estimates on matching results.
Start free trial