A tool app to create your own custom riddle apps (number->text/image).
About this app
This app is a tool to create your own riddles/escape rooms (those with relations number->text/image) to play at home with friends or anywhere else.
Note: you can specify only text, only image or both for each 4-digit number
This is the list of things you can customize: - Title of the app - Text of a specific number - Image of a specific number - Text of not-specified number
This is the list of things you can't customize (yet) - Theme of the app - Background - Number of digits (only 4) - Image of not-specified number
As of update 2.0 there is now a demo you can load to see how it works. Many thanks to Jorge del Castillo for it!
If you have any suggestion feel free to contact me (or write it in the comments) although I can't promise I'll be able to implement it :/
The source code is available on GitHub; https://github.com/TrianguloY/NumericRiddleGenerator
Licensed under CC-BY-4.0, by TrianguloY.
What's New in v2.1
Imported from the F-Droid repository index.
- V 2.1
- - Removed controversial Mulan reference in the demo (note: this will only be applied to new installs or when the app folder is deleted)
- V 2.0
- Added demo/tutorial. Remember this app allows YOU to create your own riddles, but now there is a demo you can load.
- Many thanks to Jorge del Castillo for it!
- V 1.0
Version history
Mar 21, 2022 · 0.1 MB · Android API 14–29 · code 7
Imported from the F-Droid repository index.
- V 2.1
- - Removed controversial Mulan reference in the demo (note: this will only be applied to new installs or when the app folder is deleted)
- V 2.0
- Added demo/tutorial. Remember this app allows YOU to create your own riddles, but now there is a demo you can load.
- Many thanks to Jorge del Castillo for it!
- V 1.0
SHA-256 c36cfa5aaa30c4e1a1d918ed2df6925e3569ec38a6a033b9e3b0ae3103d4cc25
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.trianguloy.numericriddlegenerator is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
No earlier build is on record for Custom Riddle Generator [small, no ads], so there is nothing to roll back to yet. When a second version is published, this section will explain how to move between them safely.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Custom Riddle Generator [small, no ads], and a listing is removed when the evidence for it stops holding up.
Get Custom Riddle Generator [small, no ads]
Every source we list for com.trianguloy.numericriddlegenerator is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
c36cfa5aaa30c4e1a1d918ed2df6925e3569ec38a6a033b9e3b0ae3103d4cc25
Signing certificate
8019ad2dce250ed8d21361b170545ed061a12d06ab7fce6e6fdb641393d819a7
Permissions Required
Previous Versions
No earlier build is on record — this is the first release we have listed.
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
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