Graycode vs 全国行政区划信息查询平台
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.
全国行政区划信息查询平台
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软件依托于民政部全国行政区划信息查询平台，由民政部区划地名司和中国地图出版社集团有限公司联合开发，是一款基于iOS系统的全国行政区划信息查询软件。该软件可以浏览行政区划图、查询行政区划信息，支持关键词查询、按行政区划浏览等多种查询方式。另外，该软件还包括行政区划变更查询、易错地名资料浏览等功能。
Screenshots
Verdict
The clearest difference is price: 全国行政区划信息查询平台 at Free against Graycode's $2.99. 全国行政区划信息查询平台 also leads on rating (5.0 vs 3.0) and update cadence (monthly vs every 10 months). On ratings volume, ads, 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
全国行政区划信息查询平台 is free to download; Graycode costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
全国行政区划信息查询平台 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
Graycode ships an update every 10 months, 全国行政区划信息查询平台 monthly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Graycode | 全国行政区划信息查询平台 |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.0 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 10 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Duo Pisceses, Inc. | Sinomaps Press |
Customer experience
Graycode
全国行政区划信息查询平台
In-app purchases
Graycode
No in-app purchases
全国行政区划信息查询平台
No in-app purchases
