Graycode vs TCP Commander
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Graycode
This utility converts numbers between decimal, hexadecimal, binary, and Gray code formats. Changes to one value automatically update the others, making it a convenient tool for engineers. It also features an animated demonstration of the Tower of Hanoi puzzle.
- Decimal, hex, binary, Gray code conversion
- Real-time updates
- Handy calculator for engineers
- Animated Tower of Hanoi solution
- Supports iPhone, iPad, iPod
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This app is used to convert numbers among decimal, hex, binary and gray code. If a user changes any one of these numbers, the other ones will change accordingly. It is a handy calculator for engineers to obtain the binary or gray code values from a decimal, or vise versa. In addition, an animated solution of a Hanoi Tower with three disks is also demonstrated based on the input number.
TCP Commander
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TCP Commander - the application created for testing and debugging of systems that use control commands. Simulation sensors, send control commands and others. - operation as a client; - supports the recording and storage of custom commands; - supports the storage and use of the previous connection settings; - support decrypting of incoming message; - crlf setup; - log input format (utf-8, utf-16, HEX).
Screenshots
Verdict
The clearest difference is price: TCP Commander at Free against Graycode's $2.99. TCP Commander also leads on update cadence (every 6 weeks vs every 10 months). On ads, in-app purchases, device support and iOS requirement 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
TCP Commander is free to download; Graycode costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Graycode ships an update every 10 months, TCP Commander every 6 weeks. The most recent releases landed on September 25, 2026 and October 7, 2026 respectively.
| Parameter | Graycode | TCP Commander |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.2 — better |
| Further details — not scored | ||
| Size | 2 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Duo Pisceses, Inc. | ТПУ |
In-app purchases
Graycode
No in-app purchases
TCP Commander
No in-app purchases
Questions
Is Graycode free?
Is TCP Commander free?
Do Graycode or TCP Commander have ads?
Which is updated more often, Graycode or TCP Commander?
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