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Comparison

eigenCalc vs pocketFORTH

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
eigenCalc
eigenCalc

Matrix Calculator for School

Free
📚 Education
No ratingsView app →
pocketFORTH
pocketFORTH

Learn FORTH on your iPhone

Free
📚 Education
No ratingsView app →
About

eigenCalc

Features
Read full description

Matrix Calculator that computes eigenvalues and eigenvectors as well as SVD, and that has been tested with 228x228 matrices.

About

pocketFORTH

Features
Read full description

Discover one of the programming languages that helped shape modern computing. PocketFORTH is a modern FORTH environment inspired by the golden age of pocket computers and home computing, bringing the power of interactive programming directly to your iPhone and iPad. Whether you're a retro-computing enthusiast, a student, an electronics maker or simply curious to explore one of the most influential programming languages ever created, Pocket FORTH lets you write, run, edit and save FORTH programs through a clean, fast and completely offline interface. Designed for both learning and experimentation, Pocket FORTH combines the simplicity of the original language with modern features including live editing, dictionary browsing, source inspection, QR code sharing, persistent storage and a growing collection of built-in words compatible with classic FORTH systems.

Screenshots

eigenCalc2 screens
pocketFORTH4 screens

Verdict

The call

eigenCalc and pocketFORTH are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

eigenCalc ships an update monthly, pocketFORTH every 3 weeks. The most recent releases landed on September 17, 2026 and July 17, 2026 respectively.

ScorecardNo meaningful differences
eigenCalc versus pocketFORTH: the parameters behind the verdict, then further details
ParametereigenCalcpocketFORTH
PriceFreeFree
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.5 — better15.6
Further details — not scored
Size2 MB1 MB
Age rating17+4+
DeveloperLuis Acevedo-ArreguinLeonardo Del Nonno

In-app purchases

None

eigenCalc

No in-app purchases

None

pocketFORTH

No in-app purchases

Questions

Is eigenCalc free?
eigenCalc is free to download, with no in-app purchases.
Is pocketFORTH free?
pocketFORTH is free to download, with no in-app purchases.
Do eigenCalc or pocketFORTH have ads?
Neither eigenCalc nor pocketFORTH shows ads.
Which is updated more often, eigenCalc or pocketFORTH?
eigenCalc ships an update monthly, and pocketFORTH every 3 weeks. Most recently, eigenCalc was updated on September 17, 2026 and pocketFORTH on July 17, 2026.

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