# Backpack Checklist vs CalCollections

The clearest difference is update cadence: CalCollections at every 4 weeks against Backpack Checklist's every 6 months. Backpack Checklist's advantage is iOS requirement (10.0 vs 18.4). 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.

Backpack Checklist ships an update every 6 months, CalCollections every 4 weeks. Both last shipped on October 5, 2026.

## The numbers

| Metric | Backpack Checklist | CalCollections |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Size | 29 MB | 2 MB |
| Requires iOS | **10.0** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WEN-PIN WANG](https://appshunter.io/developer/1515022932) | [The Calculator Store SLNE](https://appshunter.io/developer/1801462449) |

## What reviewers say

### Backpack Checklist

[App page](https://appshunter.io/ios/app/backpack-checklist/id1515741984)

**Features:** macOS Compatibility

**In-app purchases:** none


### CalCollections

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Backpack Checklist free?

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

### Is CalCollections free?

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

### Do Backpack Checklist or CalCollections have ads?

Neither Backpack Checklist nor CalCollections shows ads.

### Which is updated more often, Backpack Checklist or CalCollections?

Backpack Checklist ships an update every 6 months, and CalCollections every 4 weeks. Most recently, Backpack Checklist was updated on October 5, 2026 and CalCollections on October 5, 2026.

---

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