# Backpack Checklist vs SensorDeck

The clearest difference is in-app purchases: Backpack Checklist at none against SensorDeck's 1. Backpack Checklist also leads on ads (none vs shown) and iOS requirement (10.0 vs 18.5). SensorDeck's advantage is update cadence (every 5 weeks vs every 6 months). On price and device support there is nothing between them.

Both are free to download. SensorDeck sells 1 one-off in-app purchase. Backpack Checklist asks for nothing beyond the download.

Backpack Checklist ships an update every 6 months, SensorDeck every 5 weeks. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Backpack Checklist | SensorDeck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Size | 29 MB | 7 MB |
| Requires iOS | **10.0** | 18.5 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [WEN-PIN WANG](https://appshunter.io/developer/1515022932) | [WEI-LUN HUANG](https://appshunter.io/developer/1540087284) |

## What reviewers say

### Backpack Checklist

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

**Features:** macOS Compatibility

**In-app purchases:** none


### SensorDeck

[App page](https://appshunter.io/ios/app/sensordeck/id6752535432)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version Upgrade | $4.99 | one-time |


## Frequently asked questions

### Is Backpack Checklist free?

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

### Is SensorDeck free?

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

### Do Backpack Checklist or SensorDeck have ads?

SensorDeck shows ads; Backpack Checklist does not.

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

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