CIFI: Install Math
How to compare two installs: next-level gain is not a clean double, and the +1 base matters.
Any time · math, installs, optimization
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By Hizzle Guides · Published 2026-10-26 · Game version checked: Android; 0.7.3.64 public repost reviewed; public listing rechecked 2026-11-05, no newer build number found; legacy numbers UNSURE; no in-game testing
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If an install gives a multiplier of 1 + a x n at level n, then the next point multiplies your income by (1 + a(n+1)) / (1 + a x n).
Example with a = 2.5:
- Level 1 is 3.5x.
- Level 2 is 6x.
- The second point gives 6 / 3.5 = 1.71x, not 2x.
What to do with that:
- A fresh point in an unrelated multiplier often beats another point in one you already built.
- At large n the gain approaches (n+1) / n, so the tenth point matters less than the first.
- If an install covers 4 useful generator tiers, count it 4 times.
- Check the real formula in the tooltip. This is a guide, not an exact answer.
See CIFI: Installs.
Evidence and version limits: CIFI: What Is Not Verified Yet.
Sources we checked
- Official Android listing (identity and public patch context)Checked 2026-11-03
UNSURE marks what this guide hasn't established. Hizzle Guides research from public sources; we don't claim in-game testing unless a page says so.