Graycode vs Rule of Three Calculator
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.
Rule of Three Calculator
This utility app helps you solve problems involving ratios and proportions. It calculates an unknown number based on the relationship between two other known numbers.
- Ratio calculation
- Proportion solving
- Finds unknown numbers
- Simple interface
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Calculator for finding a number in the same ratio to a given number as exists between two other given numbers.
Screenshots
Verdict
The clearest difference is review sentiment: Graycode at 67% against Rule of Three Calculator's 0%. Graycode also leads on rating (3.0 vs 2.3) and in-app purchases (none vs 1). Rule of Three Calculator's advantage is price (Free vs $2.99) and iOS requirement (8.0 vs 12.0). On ratings volume, ads 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
Rule of Three Calculator is free to download; Graycode costs $2.99 up front. Rule of Three Calculator sells 1 one-off in-app purchase. Graycode asks for nothing beyond the download.
Graycode holds the better App Store score, 3.0 against 2.3. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 67% of Graycode's written reviews are positive against 0% of Rule of Three Calculator's.
| Parameter | Graycode | Rule of Three Calculator |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.0 (2 ratings) — better | 2.3 (4 ratings) |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 10 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Duo Pisceses, Inc. | Saran Dumronggittigule |
Customer experience
Graycode
Rule of Three Calculator
In-app purchases
Graycode
No in-app purchases
Rule of Three Calculator
- Remove Ads$0.99
