# MPPI Cidadão vs Nano Key

MPPI Cidadão and Nano Key are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

MPPI Cidadão ships an update every 4 months, Nano Key every 2 months. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | MPPI Cidadão | Nano Key |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 18 MB | 61 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Piaui Procuradoria Geral de Justica](https://appshunter.io/developer/1437920005) | [Promont Solucoes Ltds](https://appshunter.io/developer/1450762911) |

## What reviewers say

### MPPI Cidadão

[App page](https://appshunter.io/ios/app/mppi-cidadao/id1437920006)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nano Key

[App page](https://appshunter.io/ios/app/nano-key/id1495821408)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MPPI Cidadão free?

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

### Is Nano Key free?

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

### Do MPPI Cidadão or Nano Key have ads?

Neither MPPI Cidadão nor Nano Key shows ads.

### Which is updated more often, MPPI Cidadão or Nano Key?

MPPI Cidadão ships an update every 4 months, and Nano Key every 2 months. Most recently, MPPI Cidadão was updated on November 4, 2026 and Nano Key on November 7, 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.*