# EcObjective vs Techno Math

The clearest difference is in-app purchases: Techno Math at none against EcObjective's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. EcObjective sells 2 in-app purchases, starting at $3.99 per month. Techno Math asks for nothing beyond the download.

EcObjective ships an update every 3 weeks, Techno Math monthly. The most recent releases landed on September 28, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | EcObjective | Techno Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/ecobjective-co2-tracker/id1242129400/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 12 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Calogero Cascio](https://appshunter.io/developer/1242129399) | [Ali Hodroj](https://appshunter.io/developer/1808938985) |

## 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 |


### Techno Math

[App page](https://appshunter.io/ios/app/techno-math/id6744694567)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EcObjective free?

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

### Is Techno Math free?

Techno Math is free to download, with no in-app purchases.

### Do EcObjective or Techno Math have ads?

Neither EcObjective nor Techno Math shows ads.

### Which is updated more often, EcObjective or Techno Math?

EcObjective ships an update every 3 weeks, and Techno Math monthly. Most recently, EcObjective was updated on September 28, 2026 and Techno Math on September 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.*