# PARTI vient vs OshiCal

The clearest difference is in-app purchases: PARTI vient at none against OshiCal's 3. PARTI vient also leads on ads (none vs shown) and iOS requirement (8.0 vs 26.0). OshiCal's advantage is update cadence (fortnightly vs every 39 months). On price and device support there is nothing between them.

Both are free to download. OshiCal sells 3 in-app purchases, starting at $0.79 per month. PARTI vient asks for nothing beyond the download.

PARTI vient ships an update every 39 months, OshiCal fortnightly. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | PARTI vient | OshiCal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 39 months | **Fortnightly** |
| Size | 3 MB | 66 MB |
| Requires iOS | **8.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [shingo kamei](https://appshunter.io/developer/1256845824) | [Makiko Kawahara](https://appshunter.io/developer/1462034804) |

## What reviewers say

### PARTI vient

[App page](https://appshunter.io/ios/app/parti-vient/id1529250046)

**Features:** macOS Compatibility

**In-app purchases:** none


### OshiCal

[App page](https://appshunter.io/ios/app/oshical/id6761362770)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan (Monthly) | $0.79 | per month |
| Premium Plan (Yearly) | $3.95 | per year |
| Premium Plan (Lifetime) | $9.19 | one-time |


## Frequently asked questions

### Is PARTI vient free?

PARTI vient is free to download, with no in-app purchases.

### Is OshiCal free?

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

### Do PARTI vient or OshiCal have ads?

OshiCal shows ads; PARTI vient does not.

### Which is updated more often, PARTI vient or OshiCal?

PARTI vient ships an update every 39 months, and OshiCal fortnightly. Most recently, PARTI vient was updated on September 10, 2026 and OshiCal on September 8, 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.*