# SustainImpact Navigator vs Map a Note

The clearest difference is in-app purchases: SustainImpact Navigator at none against Map a Note's 2. SustainImpact Navigator also leads on iOS requirement (13.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Map a Note sells 2 in-app purchases, starting at $0.99 per month. SustainImpact Navigator asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | SustainImpact Navigator | Map a Note |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/sustainimpact-navigator/id6475014367/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 98 MB | 64 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Orlandus Gilmore](https://appshunter.io/developer/1723079848) | [Gray Whale and Blue Heron](https://appshunter.io/developer/1406567541) |

## What reviewers say

### SustainImpact Navigator

[App page](https://appshunter.io/ios/app/sustainimpact-navigator/id6475014367)

Empower communities to assess their sustainability and social impact. Understand renewable energy, capture diverse perspectives, and define impact from unique viewpoints. This tool fosters community ownership for a sustainable future.

**Highlights:** Community empowerment tools, Sustainability assessment, Social impact assessment, Renewable energy insights, Community perspective capture, Impact ownership

**Features:** macOS Compatibility

**In-app purchases:** none


### Map a Note

[App page](https://appshunter.io/ios/app/map-a-note/id6476342824)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited notes | $0.99 | per month |
| Unlimited notes | $3.99 | per year |


## Frequently asked questions

### Is SustainImpact Navigator free?

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

### Is Map a Note free?

Map a Note is free to download, with in-app purchases available.

### Do SustainImpact Navigator or Map a Note have ads?

Neither SustainImpact Navigator nor Map a Note shows ads.

### Which is updated more often, SustainImpact Navigator or Map a Note?

SustainImpact Navigator ships an update monthly, and Map a Note monthly. Most recently, SustainImpact Navigator was updated on October 5, 2026 and Map a Note on September 26, 2026.

---

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