What steady saving becomes, given time and patience.
£
£
%
Value after 20 years
—
Total you put in—
Growth on top—
Total valueWhat you put in
How this was built
✕
Plain-English prompts, in order — exactly what you'd say to Claude to build the compound growth calculator. No code, no jargon. The host coaches the wording; the executive types.
Notice the storage step is its own prompt — that's the moment it starts to remember your numbers. See all apps' prompts →