Independent app scorecard · Methodology v0.1
A deep activity catalog with moderate travel utility and relatively shallow sampled learning interactions.
Five-dimension scorecard
Score definitions
Lower sensory and attention intensity. 5.6/10
Works reliably away from Wi-Fi. 6.9/10
Breadth, depth, variety, and free access. 9.2/10
Meaningful, transferable skill use. 3.3/10
Transparent and low-pressure. 6.0/10
Calculation audit
Component values are normalized to 0–10. Contribution is the component value multiplied by its weight. Displayed values are rounded; canonical calculations retain full precision.
10 − Attention Intensity (4.3966)| Component | Value | Weight | Contribution |
|---|---|---|---|
| Visual Motion | 10.0000 | 25% | 2.5000 |
| Visual Change Frequency | 6.6441 | 15% | 0.9966 |
| Brightness Variability | 0.0000 | 10% | 0.0000 |
| Audio Intensity | 0.0000 | 15% | 0.0000 |
| Audio Event Frequency | 0.0000 | 10% | 0.0000 |
| Reward Activity | 6.0000 | 15% | 0.9000 |
| Attention Prompts Interruptions | 0.0000 | 10% | 0.0000 |
The component sum is attention intensity, so it is inverted for the public Calmness score.
Σ(component value × weight)| Component | Value | Weight | Contribution |
|---|---|---|---|
| Offline Functionality | 10.0000 | 45% | 4.5000 |
| Offline Reliability | 10.0000 | 10% | 1.0000 |
| Offline Preparation Burden | 2.0000 | 15% | 0.3000 |
| Audio Independence | 2.0000 | 10% | 0.2000 |
| Child Flow Commercial Interruptions | 1.0000 | 10% | 0.1000 |
| Accessible Content Breadth | 8.3333 | 10% | 0.8333 |
Σ(component value × weight)| Component | Value | Weight | Contribution |
|---|---|---|---|
| Content Breadth | 10.0000 | 35% | 3.5000 |
| Content Depth | 10.0000 | 25% | 2.5000 |
| Meaningful Variety | 10.0000 | 20% | 2.0000 |
| Free Access Value | 6.0000 | 20% | 1.2000 |
Σ(component value × weight)| Component | Value | Weight | Contribution |
|---|---|---|---|
| Third Party Advertising | 10.0000 | 25% | 2.5000 |
| Child Flow Purchase Pressure | 1.0000 | 25% | 0.2500 |
| Locked Content Exposure | 3.0000 | 15% | 0.4500 |
| Pricing Transparency | 10.0000 | 20% | 2.0000 |
| Purchase Model Friction | 5.0000 | 15% | 0.7500 |
Learning value calculation
(skill_demand + agency + depth + transferability) / 8 * 10
App score = weighted mean of activity scores by share of the accessible experience.
guided narrated lesson/workbook/game activity
| Component | 0–2 value |
|---|---|
| Skill Demand | 0.80 |
| Agency | 0.50 |
| Depth | 0.40 |
| Transferability | 0.90 |
The four activity components are equally weighted. Learning Value measures demonstrated interaction demands, not proven learning outcomes.
Mode: Guided skill practice
The representative activities involved:
Learning Value reflects demonstrated skill demand, agency, depth, and transferability. It is not evidence of learning outcomes.
Common questions
Lingo received a Calmness score of 5.6/10. Higher scores indicate lower measured attention intensity. The score combines visual motion and change, brightness variation, audio intensity and frequency, rewards, and interruptions.
Lingo received a Travel score of 6.9/10. This combines offline functionality and reliability, preparation burden, audio independence, commercial interruptions, and accessible content breadth.
Lingo received a Learning Value score of 3.3/10 based on representative activities. The score measures skill demand, agency, depth, and transferability; it does not claim proven learning outcomes.
Compare this result with all tested kids apps, or inspect the complete rating methodology.