SheetGym
A spaced-repetition trainer that drills you on Google Sheets and Excel formulas, shortcuts and pivot-table moves through short, randomized reps in a real spreadsheet.
early-career analysts, finance and ops interns, MBA students who know Sheets matters but freeze when asked to build a live model
- Reps that drop you into a real spreadsheet sandbox and ask for one action ('compute the running total of column B'), graded instantly
- Daily 5-minute drill set drawn from the formulas you're weakest at, like a Duolingo streak for spreadsheet skills
- Skill paths for common jobs — analyst, FP&A, marketing ops, academic research — with curated rep sequences
- Mock model challenges that combine reps into a 15-minute 'build this P&L from scratch' exam
The shell-gym concept proves hands-on reps beat tutorials, and the spreadsheet skills gap is one of the most-cited weaknesses by finance and consulting employers in 2026 — there is no equivalent trainer for it.
Excel training is a massive proven market (Udemy/Coursera specializations sell thousands of seats), but the specific sub-niche of spaced-repetition drills is narrower; free practice sites already serve the underlying appetite.Excel Course Review 2025: GoSkills vs Udemy, Coursera & 3 Rivals — SaaS Adviser ↗Excel Skills for Business | Coursera ↗
Multiple direct free competitors already exist — Spreadsheet Center (150+ exercises, 82k completed), LogicExcel, ExcelPractices.online, ExcelPal, Formula Wars — all offering randomized formula/practice with instant feedback; spaced-repetition specifically is the only differentiator.Learn Excel by Doing - Free Interactive Practice | Spreadsheet Center ↗Excel Practice Online — Free Excel Exercises & Shortcut Training | ExcelPractices.online ↗Excel Practice Problems Online | Formula Wars ↗
Free alternatives dominate this space and the target audience (interns, MBA students) is highly price-sensitive; willingness to pay beyond a $10 Udemy course is unproven — no paid SRS-for-Excel product appears to have scaled.Udemy vs Coursera (2026): Pricing, Certificates & Which Is Best for You ↗Compare Udemy Plans and Pricing | Udemy ↗
Spreadsheet skills remain a top-cited skill gap in finance/consulting per WEF 2025 and LinkedIn analyses; Excel/Sheets will stay central to analyst workflows for the foreseeable future.CFO 2025: Bridging the Skills Gap in Finance - LinkedIn ↗
Translating the shell-gym CLI model to a spreadsheet is hard: a real sandboxed cell-grid with formula execution, shortcut capture, and pivot-table emulation is a substantial engineering effort, far beyond a typical web app.