# PartSets vs AirSize

The clearest difference is update cadence: AirSize at weekly against PartSets's every 5 months. AirSize also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PartSets sells 5 one-off in-app purchases and AirSize sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PartSets ships an update every 5 months, AirSize weekly. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PartSets | AirSize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/partsets/id6612022770/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 8 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宗林 郭](https://appshunter.io/developer/1752221005) | [孝龙 刘](https://appshunter.io/developer/1855768857) |

## What reviewers say

### PartSets

[App page](https://appshunter.io/ios/app/partsets/id6612022770)

Easily manage your parts or items with this app. Add unlimited items, categorize them, track quantities, and even store associated PDF files. Enjoy secure data management with iCloud synchronization across multiple Apple devices.

**Highlights:** Unlimited parts management, Categorization and quantity tracking, iCloud synchronization, Multi-device operation, PDF resource saving, Secure data storage

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Features(Trial 1week) | Free | one-time |
| Advanced Features(A week) | $0.29 | one-time |
| Advanced Features(A Month) | $0.49 | one-time |
| Advanced Features(A year) | $4.99 | one-time |
| Advanced Feature(Forever) | $11.49 | one-time |


### AirSize

[App page](https://appshunter.io/ios/app/airsize/id6755718658)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 妙测 Pro | $0.99 | one-time |


## Frequently asked questions

### Is PartSets free?

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

### Is AirSize free?

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

### Do PartSets or AirSize have ads?

Neither PartSets nor AirSize shows ads.

### Which is updated more often, PartSets or AirSize?

PartSets ships an update every 5 months, and AirSize weekly. Most recently, PartSets was updated on October 3, 2026 and AirSize 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.*