I find Owler.com quite good to compare solutions.
For example if I look for alternatives to analyse the visits on an app:
https://www.owler.com/company/adjust
I like the comparison table:
Nevertheless, I wish Owler could also display the main customers of each solution.
For instance, Adjust is used by N26, Viber, Blablacar, Momondo, Runtastic, Zynga, Hotel Tonight…
Also love how Google has this “People also search for”
Applift’s alternatives: inmobi, tapjoy, applovin, tremor, mobvista, ironsource, chartboost, fyber, fiksu, leadbolt, adcolony, startapp, jampp, appnext, mediamath, motive interactive, google admob, vungle, adroll…
G2 is also quite interesting to compare solutions:
https://www.g2.com/products/applift/competitors/alternatives
Marin Software, Adroll, Google Marketing Platform, Zeta Programmatic (Sizmek), 4C, Kenshoo, Criteo, Basis, Celtra, Verizon Media DSP, Mediamath, Dataxu, Acquisio, Amobee DSP, IgnitionOne, TubeMogul, WideOrbit, LeadBolt, Atlas Solutions (Facebook)
But G2 has also this great Grid, here for CRM as an example, showing all the competitors. There the clear leaders are Salesforce and Hubspot, no surprise.
But maybe even better is the possibility to see which tool is trending with the Momentum Grid, where you can see that Freshsales
Last but not least, comparing by size of customer: small business, big company:
Small:
Mid market:
Entreprise: where you see Oracle and SAP competing: