SAASPOCALYPSEcase · head-to-head
wedge comparison
subjects of investigation

grammarly.comvsworkday.com

which is stronger?

clone time
8 weeks
contested

grammarly.com

AI writing assistant & grammar checker

47/ 100
wedge scorefull report ↗
clone time
6 months
fortress

workday.com

Enterprise HR, Finance & IT platform

27/ 100
wedge scorefull report ↗
moat

how deep is each moat.

grammarly.com · aggregate
5.3/10real moat
moat delta+2.0
workday.com · aggregate
7.3/10deep moat
5.0
capital+3.0 →
8.0
6.0
technical+1.0 →
7.0
2.0
network+3.0 →
5.0
4.0
switching+5.0 →
9.0
7.0
data-1.0 →
6.0
1.0
regulatory+6.0 →
7.0
8.0
distribution+0.2 →
8.2
floor

cost + time, side by side.

monthly floorgrammarly.com wins
grammarly.com
$24 + usage
workday.com
$67 + usage
delta −$43workday.com costs ~3× more per month to keep alive.
time to clonegrammarly.com wins
grammarly.com
8 weeks
workday.com
6 months
delta −3× faster8 weeks vs. 6 months.
overlap

where they fight, where they don't.

features only one ships, plus the small middle they share.
only grammarly.com · 33
frontend cloud platformrich text editortransactional email
shared · 33
cloud file storageintegrationsllm inference
only workday.com · 11
tax compliance
stack

what they're built on.

shared infra and the differentiating bits.
only grammarly.com · 66
AnthropicCloudflare PagesOpenAISentrySupabase AuthTiptap
shared infra · 77
CloudflareCloudFrontNext.jsCloudflare R2ResendSupabaseVercel
only workday.com · 11
Postgres
the verdict
ATTACK GRAMMARLY FIRST

same comparison surface, two different walls. give the grammarly attack a month. circle back to workday only if you genuinely need what it does that the other doesn't.

the case
a full tier easiersmaller monthly billshallower moat
read the grammarly report →
full reportcontested · 47
→ read the grammarly.com report
full reportfortress · 27
→ read the workday.com report