# CalCollections vs my15c

The clearest difference is in-app purchases: CalCollections at none against my15c's 1. CalCollections also leads on iOS requirement (18.4 vs 26.0). my15c's advantage is update cadence (every 2 days vs every 4 weeks). On price, ads and device support there is nothing between them.

Both are free to download. my15c sells 1 one-off in-app purchase. CalCollections asks for nothing beyond the download.

CalCollections ships an update every 4 weeks, my15c every 2 days. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | CalCollections | my15c |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 days** |
| Size | 2 MB | 53 MB |
| Requires iOS | **18.4** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [The Calculator Store SLNE](https://appshunter.io/developer/1801462449) | [Miroslav Perovic](https://appshunter.io/developer/400748424) |

## What reviewers say

### CalCollections

[App page](https://appshunter.io/ios/app/calcollections/id6746972417)

**Features:** macOS Compatibility

**In-app purchases:** none


### my15c

[App page](https://appshunter.io/ios/app/my15c/id6796379580)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full App | $9.99 | one-time |


## Frequently asked questions

### Is CalCollections free?

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

### Is my15c free?

my15c is free to download, with in-app purchases available.

### Do CalCollections or my15c have ads?

Neither CalCollections nor my15c shows ads.

### Which is updated more often, CalCollections or my15c?

CalCollections ships an update every 4 weeks, and my15c every 2 days. Most recently, CalCollections was updated on September 18, 2026 and my15c on September 14, 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.*