# Stampitas vs PERUMIN 36

The clearest difference is in-app purchases: PERUMIN 36 at none against Stampitas's 7. PERUMIN 36 also leads on update cadence (every 3 days vs every 6 months) and iOS requirement (11.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Stampitas sells 7 one-off in-app purchases. PERUMIN 36 asks for nothing beyond the download.

Stampitas ships an update every 6 months, PERUMIN 36 every 3 days. The most recent releases landed on September 28, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Stampitas | PERUMIN 36 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Size | 62 MB | 71 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stampitas EIRL](https://appshunter.io/developer/1567774748) | [Instituto de Ingenieros de Minas del Perú](https://appshunter.io/developer/1448060321) |

## What reviewers say

### Stampitas

[App page](https://appshunter.io/ios/app/stampitas/id1567774746)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 60 | $1.99 | one-time |
| 150 | $3.99 | one-time |
| 300 | $7.99 | one-time |
| 450 | $11.99 | one-time |
| 600 | $15.99 | one-time |
| 900 | $23.99 | one-time |
| 1200 | $31.99 | one-time |


### PERUMIN 36

[App page](https://appshunter.io/ios/app/perumin-36/id6466823607)

**In-app purchases:** none


## Frequently asked questions

### Is Stampitas free?

Stampitas is free to download, with in-app purchases available.

### Is PERUMIN 36 free?

PERUMIN 36 is free to download, with no in-app purchases.

### Do Stampitas or PERUMIN 36 have ads?

Neither Stampitas nor PERUMIN 36 shows ads.

### Which is updated more often, Stampitas or PERUMIN 36?

Stampitas ships an update every 6 months, and PERUMIN 36 every 3 days. Most recently, Stampitas was updated on September 28, 2026 and PERUMIN 36 on September 16, 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.*