# Census 2021 vs UN Maps

The clearest difference is update cadence: UN Maps at every 3 weeks against Census 2021's every 3 months. Census 2021's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Census 2021 ships an update every 3 months, UN Maps every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Census 2021 | UN Maps |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 17 MB | 265 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Office of The Registrar General India](https://appshunter.io/developer/1548257112) | [United Nations Global Service Centre](https://appshunter.io/developer/1523439852) |

## What reviewers say

### Census 2021

[App page](https://appshunter.io/ios/app/census-2021-houselist/id1548257110)

**Features:** macOS Compatibility

**In-app purchases:** none


### UN Maps

[App page](https://appshunter.io/ios/app/un-maps/id6479462572)

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

**In-app purchases:** none


## Frequently asked questions

### Is Census 2021 free?

Census 2021 is free to download, with no in-app purchases.

### Is UN Maps free?

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

### Do Census 2021 or UN Maps have ads?

Neither Census 2021 nor UN Maps shows ads.

### Which is updated more often, Census 2021 or UN Maps?

Census 2021 ships an update every 3 months, and UN Maps every 3 weeks. Most recently, Census 2021 was updated on October 27, 2026 and UN Maps on October 25, 2026.

---

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