Scientific Calculator fx-991EX

Name: Scientific Calculator fx-991EX revenue & download estimates
Creator: AppCurrents

App Store·EducationPaid $2.99★ 3.00 (2)launched 2mo agoapp updated 1mo ago

Scout Score

Scientific Calculator fx-991EX generates an estimated $40–$200/month in revenue from 20–90 downloads/month on the App Store, according to AppCurrents estimates (updated 2026-06-17).

Estimates updated 17.06.2026 · How we estimate · Ranges reflect model confidence, not exact figures.
Est. revenue / month	$40–$200
Est. downloads / month	20–90
Estimate confidence	medium
Pricing	Paid $2.99
Rating	3.00 ★ (2 ratings)
Category	Education
Released	03.04.2026
App last updated	28.04.2026
Platform	iOS

Est. downloads / mo

20–90

Est. revenue / mo

$40–$200

Rating velocity / day

Chart velocity

—

Peak rank

—

Days tracked

—

Modeled monthly estimate · rating velocity · medium confidence

About

Scientific Calculator fx-991EX is an academic-level scientific calculator that solves mathematical expressions in natural textbook format — fractions with horizontal bars, square roots with radical signs, and powers with superscripts, rendered exactly as they appear in your textbook. Built for university students, engineers, researchers, and professionals who need precision and clarity in every c…

View on the App Store →

Trends & analysis

Chart rank trend

US · overall

Collecting rank history — no snapshots so far. Fills in twice daily.

Why it's surfacing

Scout 39

Newness

Breakout

Ratings & velocity

Total ratings

Jun 17

New ratings / day

Collecting history — no snapshots so far. Fills in twice daily.

Rating distribution

50% positive · 2 ratings

5★

50%

4★

3★

2★

1★

50%

Geographic reach

best rank · 0 storefronts

Collecting storefront coverage — no snapshots so far. Fills in twice daily.

Revenue & downloads trend

ARPU $2

Est. revenue / mo · $87

$92$0

Jun 5Jun 17

Est. downloads / mo · 42

440

Jun 5Jun 17

Update history

1 update tracked

v2.0.81mo ago
• Smarter delete: cursor moves naturally through fractions, powers, and mixed numbers • Stacked x²/x^ presses share one superscript line (no more diagonal staircase) • Chained-exponent results corrected (5²² → 625)

Scientific Calculator fx-991EX — FAQ

How much money does Scientific Calculator fx-991EX make?

According to AppCurrents estimates, Scientific Calculator fx-991EX generates approximately $40–$200 per month (medium confidence), modeled from its the App Store chart performance, rating velocity, and monetization signals.