# EcObjective vs Lectura

The clearest difference is rating: Lectura at 5.0 against EcObjective's 3.0. Lectura also leads on update cadence (every 8 days vs every 3 weeks) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. EcObjective sells 2 in-app purchases, starting at $3.99 per month and Lectura sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Lectura holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

EcObjective ships an update every 3 weeks, Lectura every 8 days. The most recent releases landed on September 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | EcObjective | Lectura |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/ecobjective-co2-tracker/id1242129400/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/lectura-university-lectures/id6740043004/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 12 MB | 22 MB |
| Requires iOS | **17.0** | 17.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Calogero Cascio](https://appshunter.io/developer/1242129399) | [Benjamin Dreyer](https://appshunter.io/developer/1705589007) |

## What reviewers say

### EcObjective

[App page](https://appshunter.io/ios/app/ecobjective-co2-tracker/id1242129400)

Calculate your carbon footprint quickly and receive personalized, science-backed actions to reduce it. This privacy-focused app tracks your environmental impact without requiring an account or selling your data. Get actionable steps and AI coaching to build sustainable habits.

**Highlights:** Carbon footprint calculation, Personalized reduction plans, AI coaching for motivation, Progress tracking, Privacy-focused design, Science-based data

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $29.99 | per year |


### Lectura

[App page](https://appshunter.io/ios/app/lectura-university-lectures/id6740043004)

Access top university lectures on computer science, machine learning, and AI from institutions like Stanford and MIT. Features AI-generated notes, a comprehensive catalog, and powerful search to enhance your learning on the go.

**Highlights:** Stream full university courses, AI-generated lecture notes, Comprehensive course catalog, Powerful search functionality, Intuitive organization by subject

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lectura Pro | $5.99 | per month |
| Lectura Pro | $14.99 | per 3 months |
| Lectura Pro | $34.99 | per year |


## Frequently asked questions

### Is EcObjective free?

EcObjective is free to download, with in-app purchases available.

### Is Lectura free?

Lectura is free to download, with in-app purchases available.

### Which has better reviews, EcObjective or Lectura?

Lectura is rated higher. EcObjective averages 3.0 out of 5 from 1 ratings, while Lectura averages 5.0 from 3 ratings.

### Do EcObjective or Lectura have ads?

Neither EcObjective nor Lectura shows ads.

### Which is updated more often, EcObjective or Lectura?

EcObjective ships an update every 3 weeks, and Lectura every 8 days. Most recently, EcObjective was updated on September 28, 2026 and Lectura on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*