# PASSION vs GLITTER／DUO

The clearest difference is update cadence: GLITTER／DUO at every 4 months against PASSION's every 22 months. GLITTER／DUO also leads on iOS requirement (8.0 vs 13.0). 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.

PASSION ships an update every 22 months, GLITTER／DUO every 4 months. The most recent releases landed on September 10, 2026 and December 23, 2025 respectively.

## The numbers

| Metric | PASSION | GLITTER／DUO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 4 months** |
| Size | 3 MB | 3 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [katsuya kikuchi](https://appshunter.io/developer/1609365589) | [yumiko chonan](https://appshunter.io/developer/1658261278) |

## What reviewers say

### PASSION

[App page](https://appshunter.io/ios/app/passion/id1609365884)

**In-app purchases:** none


### GLITTER／DUO

[App page](https://appshunter.io/ios/app/glitterduo/id1658261276)

**In-app purchases:** none


## Frequently asked questions

### Is PASSION free?

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

### Is GLITTER／DUO free?

GLITTER／DUO is free to download, with no in-app purchases.

### Do PASSION or GLITTER／DUO have ads?

Neither PASSION nor GLITTER／DUO shows ads.

### Which is updated more often, PASSION or GLITTER／DUO?

PASSION ships an update every 22 months, and GLITTER／DUO every 4 months. Most recently, PASSION was updated on September 10, 2026 and GLITTER／DUO on December 23, 2025.

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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.*