Lasta: Healthy Weight Loss

What it does

Lasta is a weight loss and fitness app designed to create highly personalized health plans. It guides new users through an extensive questionnaire covering their goals, physical metrics, lifestyle, and dietary habits. Based on this data, the app generates a tailored program that seems to focus on intermittent fasting and targeted workouts to help users achieve their desired weight in a sustainable way.

Where it shines

Lasta excels at making its data collection process feel both personal and engaging. The onboarding quiz isn't just a series of questions; it's an interactive experience. For example, the 'Target Zones' screen at 00:37 lets users tap on a body model to select areas they want to work on, with the model highlighting each choice. This visual feedback is far more compelling than a simple list. Later, the app builds anticipation with a 'getting things ready for you' screen (01:52) that cycles through motivational cards, turning a loading state into a value-reinforcing moment.

UX highlights

Early Value Framing: Right at the start (00:18), a graph contrasts Lasta's steady weight loss approach with the volatility of 'restrictive diets', immediately positioning the app as a sustainable solution.
Visual Data Input: The app avoids boring forms by using visual selectors. The slider for 'fasting level' (01:10) and the interactive body model (00:37) are great examples of this.
Progressive Summaries: Lasta regularly summarizes the user's progress and inputs (01:06, 01:45), making them feel heard and reinforcing that the final plan is truly being tailored to them.
Clear, Linear Path: The onboarding is a single, focused path. There are no distractions or opportunities to get lost, guiding the user directly towards the final plan and subsequent paywall.
Benefit-Oriented Language: Questions and options are framed around positive outcomes, such as 'Get in shape' or 'Feel empowered' (00:23), aligning the app with the user's aspirational goals.
Strategic Use of Animation: Subtle animations, like the drawing of the weight loss graph, add a layer of polish and help direct the user's attention through the flow.

Monetization & growth

The app employs a classic 'quiz-to-paywall' funnel. It gates 100% of its value behind a detailed onboarding process that requires significant user investment. After the user has spent several minutes providing detailed personal information and has seen a preview of their personalized plan, they hit a mandatory email sign-up (02:08). Immediately following this, they are presented with a hard paywall at 02:32. The paywall offers three subscription plans with no free trial, leveraging the sunk cost of the lengthy quiz to drive conversions. The most popular plan is highlighted with a 'SAVE 59%' tag to encourage a longer-term commitment.

Who it’s for

Based on the onboarding flow and imagery, Lasta appears to be primarily targeted at women looking for a structured and personalized approach to weight loss. The questions about body shape, target zones, and lifestyle suggest it's for users who are tired of generic, one-size-fits-all diet plans and are seeking a more tailored solution. The focus on fasting and specific meal times might appeal to those interested in more modern, habit-based wellness strategies.

Notes & opportunities

The onboarding flow is very long, which could be a point of friction and lead to user drop-off. While it builds investment, some users might prefer to see the app's interface or a sample plan much earlier. The lack of a free trial is a confident move but could deter users who are hesitant to commit financially without first experiencing the app's day-to-day functionality. Introducing a limited free trial or a freemium version could be an area for future testing to potentially capture a wider audience.