똑또기 리나: 시니어 스마트폰 안전교실

CommonSource

About this app

Try to develop the habit of checking smartly one more time before pressing the payment button.

"Smart Lina: Smartphone Safety Class" is a smartphone education app designed to help you safely practice dark patterns hidden in online shopping, free trials, subscriptions, sign-ups, and app permission request screens. Join your friendly guide, Lina, to find suspicious phrases and buttons yourself and learn why you need to be careful, all in simple Korean.

This app is not just a lesson where you read the instructions and stop. On virtual screens that look like actual shopping malls or apps, you can expand costs, deselect pre-selected items, check conditions hidden in small print, and navigate through complex cancellation paths. All practice screens feature safety indicators stating that no actual payment or sign-up will take place, allowing you to try multiple times without pressure.

■ Recommended for:

• Seniors who are still unfamiliar with smartphone shopping and online payments

• Those worried about automatic payments or missing subscription cancellations after a free trial

• Those who want to learn how to distinguish between genuine ads, discounts, reviews, and stock alerts

• Families who want to teach their parents and grandparents how to use smartphones safely

• Those looking for digital literacy, consumer education, or IT training materials for seniors

■ Daily Practical Missions

Explore a virtual screen where products, prices, button locations, and selection statuses change. You must personally verify hidden fees added right before payment, automatic renewal conditions, secretly included add-ons, pre-checked ad reception, and confusingly written questions to pass. Start without pressure with short missions, and even if you make a mistake, you can try again while listening to Lina's explanation.

** ■ Learn 19 Dark Patterns in One Place

Learn about hidden renewals, sequential pricing, stealthy cart additions, false discounts, false recommendations, sales pitches, disguised ads, deceptive questions, misleading hierarchy, pre-selection of specific options, hindering cancellations and unsubscribes, hidden information, hindering price comparisons, inducing click fatigue, repetitive interference, the use of emotional language, timed notifications, low stock alerts, and notifications regarding other consumer activities.

For each type, we provide on-screen signals, actionable defensive measures, and relevant legal status. Since dark patterns do not always imply illegality, we guide you step-by-step on what to look for and how to make judgments, rather than simply trying to scare you.

■ Practice Like Real and Stop Safely

Practice finding the conversion date and amount from a free trial, comparing total payments and fees, removing items from a cart, examining product names and timestamps in reviews, distinguishing between ad displays and close buttons, double-checking checkboxes, navigating to the subscription cancellation completion screen, and converting different price units to the same standard.

The answer isn't always found on large, clear buttons. You can naturally learn how to read text without being swayed by color or size, how to pause before timers or stock alerts that make you anxious, and how to reconsider whether a choice is truly necessary for you.

■ Personalized Review and Growth Records

Correct and incorrect answers, selection order, reaction time, and hints used are recorded on the device. Review sequences are determined based on frequently missed question types and your last study time, allowing you to focus on practicing your weak areas. You can check your recent 7 days, overall study statistics, consecutive study days, cumulative scores, and weak question types, and review the exploration and selection process of past problems step-by-step.

■ Repetitive Learning Without Memorizing the Screen

The same techniques can be encountered in different situations, such as free trials, shopping carts, accommodation bookings, health products, and news and video subscriptions. Since products and prices change and the location of safe choices shifts, it is difficult to solve them by simply memorizing and pressing specific buttons. By repeating the process of slowly observing the screen, finding evidence, and making a decision, you learn judgment principles that can be applied to new services as well.

■ Digital Consumer Education Organized by Four Perspectives

The app helps you examine dark patterns from perspectives such as hiding information, diverting attention, disrupting behavior, and applying psychological pressure. You will be able to verbally explain which clues cloud your judgment, even for screens you initially felt were "somehow suspicious." The type dictionary pairs signals with defensive behaviors, making it easy to remember when actually using your smartphone after the training.

■ Three Checking Habits More Important Than a Single Answer

First, before making a payment, check the number of items, the final amount, and the fees. Second, before agreeing, examine the items already checked and any rejection clauses. Third, before starting a free trial or subscription, check the paid transition date, renewal amount, and cancellation location. By performing these actions yourself for each mission, try transforming vague anxiety into a concrete sequence of checks.

■ Diverse Applications in Class and at Home

You can solve one mission daily on your own, or have your family look at the same screen and discuss the reasons for their respective choices. It can also be used as a supplementary activity to explain payment safety and consumer rights in basic smartphone classes at digital learning centers, welfare centers, libraries, and lifelong learning centers. A conversational approach focusing on what clues you've discovered and what to look at next is better suited than a competition to find the correct answer quickly.

■ Comfortable Usability Considering Seniors

It provides large text, a wide touch area, and a clear, high-contrast screen. You can minimize screen movement, and it supports keyboard focus and vibration feedback. By utilizing Korean screen reading and short voice encouragement, even those who find long sentences overwhelming can follow along at their own pace. Voice encouragement can be turned off separately as needed.

■ Build Safe Smartphone Habits with Family

You can share your learning scores with your family using "Bragging Cards" and difficult problems using "Question Cards." Try to develop a habit of discussing only the screens you got wrong together and asking, "Which condition should I check first?" rather than "Which button should I press?" Shared cards do not include real names, phone numbers, or actual payment information.

■ Practice Without Personal Information Burden

No registration or server account is required. It does not ask for your name, phone number, address, or actual purchase history, and learning records are stored on the device. Sharing occurs only when the user directly opens the sharing window in the operating system, and all saved records can be deleted at any time in the settings.

■ Please Remember

The business names, products, prices, and screens within this app are virtual examples created for educational purposes. This does not imply that any specific company or service is illegal. This app is a digital consumer education tool and does not replace legal, financial, or medical consultation. If you suspect damage or need assistance in an actual transaction, please check the guidance provided by relevant authorities.

In the app's help section, you can review key clues and response methods for each type of issue. Rather than learning how to fix problems after they occur, it offers preventative learning focused on pausing to verify details before signing up, agreeing to terms, placing orders, or making payments. It is useful not only for smartphone beginners but also for users who habitually scroll through familiar screens quickly.

■ Learning a Calm Decision-Making Process with Lina

Even if the screen urges you to make an urgent choice, stop first, locate the information available to expand and the checked items, compare the initial price with the final price, and then make your selection. After an incorrect answer, instead of simply marking it as wrong, it informs you of the missed signals and the next steps to take. Even when you succeed, it reviews which conditions you checked, rather than which button you memorized. With repetition, "reading, comparing, and deciding" becomes more natural than "pressing first."

**Please Remember** Even though smartphone screens vary by service, the principles you must check remain the same. Develop the ability to spot colors and wording that pressure you to pay, options designed to be hard to refuse, and hidden renewal conditions. Learning progress is broken down into short segments so you don't have to study for long periods at a time, and you can review specific topics in your dictionary or past records.

Starting today, practice with Lina checking the total amount before payment, renewal conditions before subscribing, and checkboxes before agreeing. This marks the beginning of solid smartphone usage habits that remain unwavering even in the face of small print and urgent notifications.