All mobile Secret Codes

Review by eFreeware

All Mobile Secret Codes is a free Android app from Theoca Apps that collects the hidden dialer and USSD codes people use to inspect a phone or reach settings that are not exposed in the normal menus. It carries no ads, offers in-app purchases, and sits in the Libraries & Demo category on Google Play. The main reason to consider it is convenience: instead of hunting through forum posts for a code that may or may not match your handset, you get a catalog in one place, and the app can either run a code for you or hand it over so you can type it into the dialer yourself.

The app has been available since May 25, 2025 and was last updated on September 11, 2026, with more than 500,000 installs and a 3.8 average across 1,163 ratings. Those numbers suggest a steady trickle of interest rather than a breakout hit, which fits the subject matter. This is a utility for people who already know why they would want to see firmware details or trigger a device reset, not a mass-market tool.

How the code catalog works

The core of the app is a list of secret codes for Android devices, organized so you can find the one you need and apply it. The developer describes two ways to use it: tap the code you want and the app handles the rest, or enter the same code manually through your phone's dialer. The second route matters because dialer codes are a native Android mechanism, and typing them yourself gives you a clear view of exactly what is being sent.

According to the developer, the app works with any type of mobile device and can reveal codes for handsets from various manufacturers. That breadth is the appeal of a reference app like this, since the same code often behaves differently across brands. What I would keep in mind is that the developer also notes some codes may not work on certain phones because the manufacturer blocks them, so a code appearing in the list is not a guarantee that your particular model will respond.

The app is meant as a way to explore Android features and phone tricks that were previously unknown to you. Read that as a description of the app's purpose rather than a promise of hidden capability: the codes themselves are part of Android, and the app's job is to gather and present them.

Device information you can pull up

Several of the listed features are about reading information off your handset. The app covers phone IMEI numbers, firmware information and display information, which are the kinds of details you might want when checking a second-hand phone, confirming a model before looking up support documents, or simply satisfying curiosity about what is running underneath the interface.

Firmware and display details are the sort of thing that normally takes a few taps through settings menus to find, and the exact path varies by manufacturer. Having a code that surfaces the same screen directly is a reasonable shortcut for someone who already knows what they are looking at. IMEI lookup is the most familiar of these, and it is the kind of check a buyer might run before handing over money for a used device.

None of this requires special permissions, which keeps the app's footprint small. It is a reference tool that reads what the phone already knows rather than something that needs broad access to your files or accounts.

Reset and unlock codes, and the risk that comes with them

The more consequential entries in the catalog are the device reset tricks and the pattern unlock tricks. These are the codes that can wipe a handset or bypass a lock screen, and they are exactly why the app comes with a disclaimer. The app is intended for experienced users, not for basic mobile users or phone thieves, and people are asked not to try codes they are not familiar with.

That warning is worth taking literally. The developer also advises typing the codes manually, noting that some phone secret codes may harm your mobile or change its settings, and states that they will not be responsible for misuse of the information, including loss of data or hardware damage. Those are the developer's words, and they set the tone for the whole app: it is a reference for people who understand the consequences, not a guided tool that holds your hand.

If you are the sort of person who already knows what a factory reset code does and why you would use one, the inclusion of reset and pattern unlock entries is useful. If you are not, the app itself tells you to stay away from them.

Offline use, permissions and what the app asks of you

One of the more practical points is that the app operates offline. You do not need an internet connection to browse the codes, which makes sense for a reference tool whose content is essentially static. It also means the app can be used in situations where connectivity is poor, such as when you are setting up a device that has no SIM card or data plan yet.

No special permissions are required. Combined with offline operation, that keeps the app's demands low: it is a list you consult, not a service that needs to reach out to anything. For a utility in this category, that is the right shape.

The trade-off is that the catalog is only as current as the developer makes it. New codes and device tricks are added regularly, and the recent changes mention added information and more mobile tricks and tips, so there is an effort to keep it growing. Even so, the codes are tied to Android itself, and manufacturers can change or block them between updates.

Cost, ads and the ad-free subscription

The app is free to install and does not contain ads, though it does offer in-app purchases.

The free version is where you start if you are only after the codes.

Who this app is built for

This is a narrow tool with a clear audience. It suits people who repair, resell or troubleshoot Android phones, and hobbyists who like poking at hidden menus to see what a device reports about itself. It also suits anyone who has ever needed to check an IMEI or confirm firmware details and did not want to navigate a maze of settings screens to find them.

The developer's own disclaimer draws the line: experienced users, not basic mobile users. That is not modesty, it is a fair description of the content. Reset and pattern unlock codes are not casual features, and the app presents them alongside a warning about data loss and hardware damage. If you are comfortable with that framing, the catalog is a convenient reference. If you are not, the app is telling you something important about itself.

A reference tool for people who know the codes

All Mobile Secret Codes does one job: it puts Android dialer and USSD codes in one place, works offline, and lets you either run them or type them yourself. It is free, carries no ads, and has been updated as recently as September 2026. The 3.8 average from 1,163 ratings suggests a mixed but generally positive reception, which is about what I would expect for a utility whose usefulness depends entirely on whether your handset honors the codes.

I would recommend it to tinkerers, repair technicians and anyone who regularly handles used Android phones and wants quick access to IMEI, firmware and display information. The reset and pattern unlock entries make it more powerful than a simple info app, and also more dangerous if used carelessly. The developer's warning is not boilerplate; it is the honest framing for this kind of tool.

If you understand what these codes do and accept the risk, this is a tidy, offline reference that costs nothing to try. If you are new to Android and looking for a guided way to explore hidden settings, the app itself says it is not for you.

What's new in version 1.31

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