# EcoTeen vs One Small Step App

The clearest difference is update cadence: One Small Step App at every 3 weeks against EcoTeen's every 4 months. One Small Step App also leads on iOS requirement (13.0 vs 16.0). EcoTeen's advantage is monetization model (free vs ad-supported). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for EcoTeen against 5.0 for One Small Step App. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

EcoTeen ships an update every 4 months, One Small Step App every 3 weeks. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | EcoTeen | One Small Step App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/ecoteen/id6744132532/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/one-small-step-app/id6745411081/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 3 MB | 116 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Taranbirsingh Chadha](https://appshunter.io/developer/1806238222) | [Small Step, Inc](https://appshunter.io/developer/1811002565) |

## What reviewers say

### EcoTeen

[App page](https://appshunter.io/ios/app/ecoteen/id6744132532)

This app helps young people understand and reduce their environmental impact. It features a built-in carbon calculator tailored for teens, tracks footprint over time with insights, and offers personalized eco-friendly tips.

**Highlights:** Teen-tailored carbon calculator, Footprint tracking with graphs, Personalized eco-tips, Understand environmental impact, Track habits easily

**Features:** macOS Compatibility

**In-app purchases:** none


### One Small Step App

[App page](https://appshunter.io/ios/app/one-small-step-app/id6745411081)

Connect with certified peer support specialists for addiction and mental health challenges. Access confidential, judgment-free conversations via chat, call, or video, available evenings and weekends. Support is completely free and accessible when you need it most.

**Highlights:** Certified peer support specialists, Confidential and private conversations, Support via chat, call, or video, Available evenings and weekends, Free to use, no insurance needed, Mental health and addiction support

**In-app purchases:** none


## Frequently asked questions

### Is EcoTeen free?

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

### Is One Small Step App free?

One Small Step App is free to download, with no in-app purchases.

### Which has better reviews, EcoTeen or One Small Step App?

EcoTeen and One Small Step App are both rated 5.0 out of 5 on the App Store, from 4 and 3 ratings respectively.

### Do EcoTeen or One Small Step App have ads?

Neither EcoTeen nor One Small Step App shows ads.

### Which is updated more often, EcoTeen or One Small Step App?

EcoTeen ships an update every 4 months, and One Small Step App every 3 weeks. Most recently, EcoTeen was updated on June 1, 2026 and One Small Step App on September 13, 2026.

---

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