Grammar Checker
What this SaaS is
A mobile app that checks grammar.
- Grammar checking
- iOS app
- Single acquisition channel— All customers come from one acquisition channel. Pull the plug and revenue dies.
Numbers that matter
Mobile app
Apple and Google keep 15–30% of subscriptions: check whether the revenue and margin above are before or after the store commission, and plan the transfer of the app and its subscriptions through App Store Connect or Google Play.
Tech stack
Score breakdown
How the composite score above splits across seven independent signals. Each axis is graded 0-100. Hover for details.
Payback at the stated margin, asking multiple vs the category median, and profit margin. The heaviest axis: what you pay for what it earns.
Revenue trend over the last ~90 days from our daily snapshots (30-day figure when history is short), capped so one spike can't dominate, minus a penalty for erratic revenue.
Paying customers, revenue scale and traffic (log scales), plus live-site health (reachable pricing page, core pages, maintained site).
AI-disruption risk, organic search presence, recurring B2B revenue; penalties for thin AI wrappers and no-code lock-in.
How turnkey the takeover is: diversity of marketing channels, Merchant-of-Record status, team.
Higher = safer. Business age, breadth of the customer base (concentration risk), recurring vs one-off revenue, known payment provider.
Structured market read across TAM, saturation, 3-year trend, and hype cycle, blended with our category momentum signal.
Market read
- TAMmid
The productivity app market is sizable but not enormous, fitting a mid TAM.
- Saturationmature
Many established players exist, indicating a mature saturation level.
- 3y trendgrowing
Increased focus on writing tools suggests a growing trend over the past three years.
- AI disruptionwrapper killable
The product is basic enough that it could be easily replicated by a solo developer.
- Hype cyclemainstream
Grammar checking tools are widely used and accepted, placing them in the mainstream phase.
Run the numbers
Before you make an offer
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