Comparison

OptOutCode Easy Device Opt vs Amazon Signage

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OptOutCode Easy Device Opt

This utility app simplifies the process of opting out of commercial surveillance by allowing users to easily rename their devices with a specific prefix. It provides a universal and decentralized mechanism to signal a desire not to have data sold or shared, enhancing user privacy across various connected devices.

Highlights
  • Universal opt-out mechanism
  • Decentralized and privacy-preserving
  • Consumer-friendly device renaming
  • Automated opt-out switch
  • Business-friendly detection protocols
Features
Read full description

Saying “No” to commercial surveillance is as easy as renaming your device & our app makes it even easier! Invented by Privacy4Cars, OptOutCode is a new Universal Opt-Out Mechanism that only requires to add the prefix 0$S = Do Not (zero) Sell (dollar) or Share (capital letter S) as the first three letters of the name of consumers’ smartphones, computers, and wi-fi router. More info at https://optoutcode.com/ OptOutCode has four distinguishing advantages: 1. It is truly Universal: OptOutCode is compatible with smartphones, laptops, tablets,routers, the apps that run on them and the IoTs they connect to, including vehicles, smart appliances, tracking beacons, and more. 2. It’s fully decentralized: OptOutCode does not require to build, maintain, query, or secure a central database of opting-out users, devices, or apps. The signal is detected locally: either by the programs and apps running on the device that has OptOutCode turned on (e.g., an app on a smartphone), or by other devices that connect to the device of the Consumer that has OptOutCode turned on (e.g. a SmartTV connected to a Wi-Fi router with OptOutCode on, a fitness watch connected to a smartphone with OptOutCode on). This architecture makes it privacy-preserving, more secure, without a single point of failure, cheaper, and faster. 3. It’s Consumer-friendly: All Consumers need to do to turn on OptOutCode is simply rename their devices by adding “0$S” as the first three characters. For instance, rename their phone from “My Phone” to “0$S My Phone”. Most Consumers can do it themselves by going through the settings of their devices in less than a minute, but we have also written code to automate the task of turning OptOutCode on or off with a simple “switch” on an app. 4. It’s business-friendly: Businesses can easily read and parse the “0$S” opt-out code from each device using backward-compatible and future proof protocols that require no special authorizations. We want to thank Professor Sebastian Zimmeck of Wesleyan University (credited with inventing GPC) for recently pointing out to us that Google has a somewhat similar protocol to allow users to opt-out of their Wi-Fi routers’ signals to be used by Google Maps, providing an independent industry validation that a portion of the name of a device can be used as an opt-out signal. This app has three purposes: 1. It makes it even easier for consumers to turn on OptOutCode on their iOS devices 2. It demonstrates how easy it is for companies who make apps (social media, gaming, dating, mapping, etc.) to detect OptOutCode and understand that consumer wants to opt-out of targeted advertising and other privacy-invading AdTech. Similarly, it demonstrates how easy it is for companies who make and/or deploy IoTs that connect to devices with OptOutCode to respect the privacy of those users. 3. It offers companies who want to promote privacy a simple way to integrate the OptOutCode “switch” into their own apps (we also created a banner they can add to their websites to help their web visitors enable Global Privacy Control (a Universal Opt-Out Mechanism for browsers) and OptOutCode to extend their protections beyond to web to apps and IoTs they connect to.

About

Amazon Signage

Easily set up and manage digital signage networks using this mobile application. It allows for quick configuration of multiple devices, installation of content management software, and centralized monitoring. Designed for users of all technical skill levels, it simplifies the process of creating and maintaining digital displays.

Highlights
  • Configure multiple Signage Sticks
  • Install Content Management Software
  • Monitor Signage Sticks centrally
  • Create custom setup profiles
  • Organize Sticks by location
  • Compact and Dark Mode options
Features
Read full description

Amazon Signage Sticks make digital signage simple and scalable. Start with one display and grow your network at your own pace without the overhead of complex solutions. Designed for anyone — no technical expertise required. The Amazon Signage mobile app makes setup and management easy: - Configure multiple Signage Sticks in minutes - Install leading Content Management Software (CMS) with ease - Monitor your Signage Sticks from a centralized dashboard - Create custom profiles to simplify setup - Organize Signage Sticks by location - New! Compact Mode shows more Signage Sticks at a glance - New! Dark Mode for easier viewing in low light By using this app, you agree to Amazon’s Conditions of Use (www.amazon.com/conditionsofuse) and Privacy Notice (www.amazon.com/privacy).

Screenshots

OptOutCode Easy Device Opt4 screens
Amazon Signage4 screens

Verdict

The call

The clearest difference is review sentiment: Amazon Signage at 100% against OptOutCode Easy Device Opt's 0%. Amazon Signage also leads on rating (4.6 vs 4.0) and ratings volume (8 vs 1). OptOutCode Easy Device Opt's advantage is update cadence (fortnightly vs every 6 weeks) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Amazon Signage holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Amazon Signage has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of OptOutCode Easy Device Opt's written reviews are positive against 100% of Amazon Signage's.

UpkeepUpdate frequency

OptOutCode Easy Device Opt ships an update fortnightly, Amazon Signage every 6 weeks. The most recent releases landed on July 3, 2026 and July 22, 2026 respectively.

Scorecard5 real differences · 5 level
OptOutCode Easy Device Opt versus Amazon Signage: the parameters behind the verdict, then further details
ParameterOptOutCode Easy Device OptAmazon Signage
PriceFreeFree
Rating4.0 (1 ratings)4.6 (8 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings18 — better
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.6
Further details — not scored
Size1 MB59 MB
Age rating4+17+
DeveloperPrivacy4Cars. LLCAMZN Mobile LLC

Customer experience

OptOutCode Easy Device Opt

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Amazon Signage

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OptOutCode Easy Device Opt

No in-app purchases

None

Amazon Signage

No in-app purchases

Questions

Is OptOutCode Easy Device Opt free?
OptOutCode Easy Device Opt is free to download, with no in-app purchases.
Is Amazon Signage free?
Amazon Signage is free to download, with no in-app purchases.
Which has better reviews, OptOutCode Easy Device Opt or Amazon Signage?
Amazon Signage is rated higher. OptOutCode Easy Device Opt averages 4.0 out of 5 from 1 ratings, while Amazon Signage averages 4.6 from 8 ratings.
Do OptOutCode Easy Device Opt or Amazon Signage have ads?
Neither OptOutCode Easy Device Opt nor Amazon Signage shows ads.
Which is updated more often, OptOutCode Easy Device Opt or Amazon Signage?
OptOutCode Easy Device Opt ships an update fortnightly, and Amazon Signage every 6 weeks. Most recently, OptOutCode Easy Device Opt was updated on July 3, 2026 and Amazon Signage on July 22, 2026.

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