Comparison

Factorial Calculator vs Modbus TCP FieldKit

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

Head to head
About

Factorial Calculator

Easily compute the factorial of any whole number with this straightforward utility. Designed for simplicity and ease of use, it provides a quick way to get factorial results.

Highlights
  • Calculate factorials
  • Whole number input
  • Easy to use interface
  • Quick results
Features
Read full description

This Factorial Calculator helps you to calculate the factorial of a whole number in an easy way. Factorial Calculator is great application and easy to use.

About

Modbus TCP FieldKit

Features
Read full description

Modbus TCP FieldKit puts a professional Modbus TCP toolkit in your pocket. Commission equipment in the field, validate setups in the lab, or troubleshoot home automation — all from your iPhone. • Connect to any Modbus TCP or RTU over TCP device — read coils and registers, monitor data blocks in real time • Modbus RTU over TCP — reach RS-485 devices through Wi-Fi or Ethernet converters in transparent mode (for example Elfin EW11, USR or Waveshare). If a read times out, the app offers to try the other framing with a single read. • Find devices and Scan Unit IDs on your own Wi-Fi subnet — ports 502, 1502, 8899 and 4196. Each device is read once and nothing is written. • Chart every monitored value — the app keeps the last 600 points or 1 hour per value while it is open — and Export CSV through the system share sheet. • Save device profiles for one-tap reconnection to frequently used endpoints • Write with confidence — every write operation requires your explicit confirmation • Built-in foreground simulator — run editable coils and holding registers for testing • Track active connections and review bounded local logs kept on your device • All data stays local — logs and diagnostic exports are sanitized by default Requires Local Network access for device communication. RS-485 devices connect through a Wi-Fi or Ethernet converter in transparent mode. Default server port is 1502. Background server operation and port 502 support pending device validation.

Screenshots

Factorial Calculator4 screens
Modbus TCP FieldKit4 screens

Verdict

The call

The clearest difference is price: Factorial Calculator at Free against Modbus TCP FieldKit's $5.99. Factorial Calculator also leads on iOS requirement (11.0 vs 18.0). Modbus TCP FieldKit's advantage is ads (none vs shown) and update cadence (weekly vs every 12 months). On in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Factorial Calculator is free to download; Modbus TCP FieldKit costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Factorial Calculator ships an update every 12 months, Modbus TCP FieldKit weekly. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 5 level
Factorial Calculator versus Modbus TCP FieldKit: the parameters behind the verdict, then further details
ParameterFactorial CalculatorModbus TCP FieldKit
PriceFree — better$5.99
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 12 monthsWeekly — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.0
Further details — not scored
Size12 MB13 MB
Age rating4++4
DeveloperSDG CODE DOO NISVladimir Chemeris

In-app purchases

None

Factorial Calculator

No in-app purchases

None

Modbus TCP FieldKit

No in-app purchases

Questions

Is Factorial Calculator free?
Factorial Calculator is free to download, with no in-app purchases.
Is Modbus TCP FieldKit free?
Modbus TCP FieldKit costs $5.99, with no in-app purchases.
Do Factorial Calculator or Modbus TCP FieldKit have ads?
Factorial Calculator shows ads; Modbus TCP FieldKit does not.
Which is updated more often, Factorial Calculator or Modbus TCP FieldKit?
Factorial Calculator ships an update every 12 months, and Modbus TCP FieldKit weekly. Most recently, Factorial Calculator was updated on November 4, 2026 and Modbus TCP FieldKit on November 7, 2026.

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