# Tsumina vs OnCrypt Authenticator

The clearest difference is in-app purchases: OnCrypt Authenticator at none against Tsumina's 1. OnCrypt Authenticator also leads on iOS requirement (13.0 vs 15.0). Tsumina's advantage is update cadence (every 3 days vs every 4 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Tsumina sells 1 in-app purchase, starting at $3.99 per month. OnCrypt Authenticator asks for nothing beyond the download.

Tsumina ships an update every 3 days, OnCrypt Authenticator every 4 weeks. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Tsumina | OnCrypt Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 weeks |
| Monetization | Freemium | — |
| Size | 71 MB | 42 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [sakatech](https://appshunter.io/developer/1198949375) | [Ossec](https://appshunter.io/developer/1735765473) |

## What reviewers say

### Tsumina

[App page](https://appshunter.io/ios/app/tsumina-model-kit-manager/id1524020362)

Organize your plastic model kit collection with this app. Track builds through various stages, add photos and notes, and scan barcodes for quick entry. Stay updated on new releases and hobby news.

**Highlights:** Manage model kit collection, Track build stages (Stock, Building, Completed, Wishlist), Add photos, notes, and tags, Add kits by searching or manual entry, Scan barcodes to register kits, View collection statistics, Stay updated on new releases and hobby news

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan (Monthly) | $3.99 | per month |


### OnCrypt Authenticator

[App page](https://appshunter.io/ios/app/oncrypt-authenticator/id6479371525)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tsumina free?

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

### Is OnCrypt Authenticator free?

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

### Do Tsumina or OnCrypt Authenticator have ads?

Neither Tsumina nor OnCrypt Authenticator shows ads.

### Which is updated more often, Tsumina or OnCrypt Authenticator?

Tsumina ships an update every 3 days, and OnCrypt Authenticator every 4 weeks. Most recently, Tsumina was updated on October 9, 2026 and OnCrypt Authenticator on October 10, 2026.

---

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