# NetZero Man vs Otteri

The clearest difference is update cadence: Otteri at every 3 weeks against NetZero Man's every 3 months. NetZero Man's advantage is review sentiment (17% vs 0%) and iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and monetization model there is nothing between them.

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

NetZero Man ships an update every 3 months, Otteri every 3 weeks. Both last shipped on October 12, 2026.

## The numbers

| Metric | NetZero Man | Otteri |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/otteri/id1480384859/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **16.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 61 MB | 103 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Thailand Greenhouse Gas Management Organization](https://appshunter.io/developer/938564036) | [Kavin Nitasnajarukul](https://appshunter.io/developer/1469331007) |

## What reviewers say

### NetZero Man

[App page](https://appshunter.io/ios/app/netzero-man/id938564037)

Calculate the carbon footprint of products, services, and organizations. Raise awareness of greenhouse gas emissions from daily activities to encourage sustainable shopping habits and combat climate change.

**Highlights:** Carbon footprint calculation, Product footprint analysis, Service footprint analysis, Organization footprint analysis, Greenhouse gas emission awareness, Sustainable shopping guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### Otteri

[App page](https://appshunter.io/ios/app/otteri/id1480384859)

This application connects users to a modern laundry service featuring industrial washers and dryers. Manage your laundry needs, check machine availability, and receive notifications when your cycle is complete. Enjoy promotions and easily locate service areas.

**Highlights:** Industrial washer and dryer booking, Real-time machine status checks, Operation time monitoring, Completion notifications, Price promotions, Service area locator

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NetZero Man free?

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

### Is Otteri free?

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

### Do NetZero Man or Otteri have ads?

Neither NetZero Man nor Otteri shows ads.

### Which is updated more often, NetZero Man or Otteri?

NetZero Man ships an update every 3 months, and Otteri every 3 weeks. Most recently, NetZero Man was updated on October 12, 2026 and Otteri on October 12, 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.*