# IS vs Par

The clearest difference is ads: IS at none against Par's shown. Par's advantage is update cadence (every 4 days vs monthly) and iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. IS sells 1 in-app purchase, starting at $6.49 per month and Par sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

IS ships an update monthly, Par every 4 days. The most recent releases landed on September 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | IS | Par |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Size | 221 MB | 27 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fanplus, Inc.](https://appshunter.io/developer/427785206) | [Tomoki Yamada](https://appshunter.io/developer/1006663230) |

## What reviewers say

### IS

[App page](https://appshunter.io/ios/app/issue/id6612013960)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IS:SUE | $6.49 | per month |


### Par

[App page](https://appshunter.io/ios/app/par-alarm/id6770005915)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |


## Frequently asked questions

### Is IS free?

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

### Is Par free?

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

### Do IS or Par have ads?

Par shows ads; IS does not.

### Which is updated more often, IS or Par?

IS ships an update monthly, and Par every 4 days. Most recently, IS was updated on September 17, 2026 and Par on October 9, 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.*