Matrix math calculator vs Decider
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Matrix math calculator
Perform various matrix operations including addition, subtraction, and multiplication. Calculate the transposed matrix, adjoint, inverse, determinant, and rank. Supports matrices of any size (MxN).
- Matrix Addition
- Matrix Subtraction
- Matrix Multiplication
- Transposed Matrix
- Adjoint Matrix
- Inverse Matrix
- Determinant Calculation
- Rank Calculation
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A spectacular application in which you can do operations with matrices, such as Addition, Subtraction and Multiplication. In addition you can also find the Transposed matrix, Adjoint matrix, Inverse matrix, Determinant and Rank of a matrix. (MxN)
Decider
This app helps resolve simple decisions by randomly selecting one of several participants. Place 2-5 fingers on the screen, and it will randomly pick one person's finger after a short period.
- Randomly selects one finger
- Supports 2-5 participants
- Simple touch interface
- Quick decision making
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So funktioniert's: - Lege 2-5 Finger auf den Bildschirm (von verschiedenen Personen) - Nach kurzer Zeit wird zufällig ein Finger ausgewählt
Screenshots
Verdict
The clearest difference is review sentiment: Decider at 100% against Matrix math calculator's 0%. Decider also leads on update cadence (daily vs every 3 months). Matrix math calculator's advantage is iOS requirement (13.0 vs 17.6). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Matrix math calculator ships an update every 3 months, Decider daily. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.
| Parameter | Matrix math calculator | Decider |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 52 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | camilo arcila | Erfan Enayati |
Customer experience
Matrix math calculator
Decider
In-app purchases
Matrix math calculator
No in-app purchases
Decider
No in-app purchases
Questions
Is Matrix math calculator free?
Is Decider free?
Do Matrix math calculator or Decider have ads?
Which is updated more often, Matrix math calculator or Decider?
Other comparisons
