Dr. Nonogram 1.07

SUD Inc. ❘ Freeware ❘
Android

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Nonograms, also known as Hanjie, Paint by Numbers, Picross, Griddlers, and Pic-a-Pix, among other names, are intricate picture logic puzzles that challenge players to reveal hidden images by carefully filling cells in a grid based on numerical hints provided alongside the grid.

In this particular puzzle genre, the numbers act as a form of discrete tomography, indicating how many consecutive filled squares exist in each row or column. For instance, a hint such as "4 8 3" suggests sequences of four, eight, and three filled squares, respectively, with vacant cells interspersed between these sets.

While these puzzles typically present themselves in black and white—a representation of binary images—they can also feature colorful variations. When color is added to the mix, the numeric clues are correspondingly colored to denote the shades of the squares. It's worth noting that unlike their monochromatic counterparts, two differently colored numbers may or may not be separated by an empty space. For example, a sequence consisting of a black four followed by a red two could indicate four black cells with intermediate empty spaces preceding two red squares or simply denote an immediate transition from four black squares to two red ones.

Nonograms come without inherent size limitations and offer layouts beyond conventional square grids. The name "Nonograms" pays tribute to Non Ishida, one of the original creators of this engaging puzzle style.

Overview

Dr. Nonogram is a Freeware software in the category Games & Entertainment developed by SUD Inc..

The latest version of Dr. Nonogram is 1.07, released on 08/22/2025. It was initially added to our database on 06/08/2024.

Dr. Nonogram runs on the following operating systems: Android.

Dr. Nonogram has not been rated by our users yet.

Pros

Classic nonogram (Picross/Hanjie) gameplay — well-known, easy-to-understand puzzle type appealing to logic puzzle fans.
Free to download with a modest install base (100K+ downloads) indicating reasonable user interest.
Published by SUD Inc. (Studio UpDown) — an established developer with multiple "Dr." games, suggesting experience in casual mobile titles and ongoing support.
Has a listed privacy policy, developer website, and direct support email — transparent contact and basic developer accountability.
App listing shows recent updates (Play Store), which implies the developer maintains the app.
Includes data encryption in transit according to Play Store listing — basic protection for data in transit.

Cons

Contains ads (Play Store notes) — can interrupt gameplay and affect user experience, especially for frequent players.
Collects and may share sensitive data types (location, app info and performance, device or other IDs) with third parties according to the Play Store listing — privacy concern for users who expect minimal telemetry from puzzle apps.
Play Store entry indicates data "can’t be deleted" — lack of an option for users to request deletion of their collected data or clear telemetry tied to their account/device.
Limited public-facing feature details — the developer website and store listing provide only a general description of nonograms; there is little information about in-game features (hints, undo, multiple sizes/difficulties, color nonograms, progression, offline play), making it hard to evaluate depth of content before installing.
No clear mention of in-app purchase model or premium/no-ads option on the store page — users wanting an ad-free experience may be uncertain whether that is available.
Potential platform limitation — primary visibility is on Google Play (Android); no obvious information about iOS availability from the provided site and listing.
App rating and review details are not prominent on the studio site and Play Store listing shows mixed presence of other titles with varying ratings — quality may vary across the developer’s portfolio, so experience could be inconsistent.

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Latest Version
1.07

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