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Calc89 CAS Graphing Calculator
Intended for use with TI-89
Fredinax Graphing Calculator · Education
★ 3.50average rating
2ratings
+1new ratings, last 7 days
—not in top charts now
Calc89 CAS Graphing Calculator is an iOS Education app by Fredinax Graphing Calculator, released on Oct 27, 2026. The current version, 1.0.0, came out 18 days ago. It has 2 ratings with an average of 3.5 stars, +1 in the last 7 days. It is free to download and offers 6 in-app purchases priced from $2.99 to $44.99.
Ratings breakdown
| ★★★★★ | 50% | |
| ★★★★ | 0% | |
| ★★★ | 0% | |
| ★★ | 50% | |
| ★ | 0% |
🔒 Rating history17 days of daily rating and rating countUnlock free — sign up
App info
- Developer
- Fredinax Graphing Calculator
- Category
- Education, Utilities
- Released
- Oct 27, 2026
- Version
- 1.0.0 (Oct 28, 2026)
- Price
- Free
- Size
- 77.3 MB
- Requires
- iOS 17.0
- Age rating
- 4+
- Languages
- English
In-app purchases
| Calculator Lifetime | $8.99 |
| Calculate89 AI Plus | $14.99 |
| Calculate89 AI Pro | $5.99 |
| Calculate89 AI Plus | $2.99 |
| Calculate89 AI Pro | $44.99 |
| Calculate89 AI Plus | $19.99 |
Current prices, App Store US.
🔒 Price history3 snapshots: when prices changed and new plans appearedUnlock free — sign up
About Calc89 CAS Graphing Calculator
CALC89, THE CAS GRAPHING CALCULATOR The CAS graphing calculator intended for use with TI-89 Titanium. Solve equations exactly, factor and expand, take derivatives and integrals, and graph everything, on a keypad with 2nd, ◆ and alpha layers. EXACT ANSWERS WITH A REAL CAS Get the exact result your teacher expects: fractions, roots and π stay exact, and one key gives the decimal when you need it. • solve, cSolve, zeros and nSolve for equations, inequalities and systems • factor, expand, partial fractions, common denominators • Derivatives with d, integrals with ∫, limits, sums Σ and products Π • Taylor polynomials and differential equations with deSolve • The with operator: evaluate at a point or restrict a solution in one line • Define your own functions and store values in variables • Matrices and lists with letters: det, inverse, rref, eigenvalues • Units: convert meters to feet or…
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