PartSets vs AirSize
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PartSets
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.
- Unlimited parts management
- Categorization and quantity tracking
- iCloud synchronization
- Multi-device operation
- PDF resource saving
- Secure data storage
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This app provides you with convenient parts (items) management services. No matter how many parts or items you have, you can add them to easily manage your parts or items. Supports iCloud synchronization and can be operated on multiple devices for easy management.^ Part category and remaining quantity, allowing you to have a clear management. Do you have PDF Resource for the parts? Never mind! You can save the PDF file of the part at the same time.* No one can see your data. Ensure data security. (Your data is saved through iCloud services) 'PartSets' helps manage parts! Notes: ^You need to log in to iCloud accounts with the same Apple ID on multiple devices. *Subscription or purchase of 'Advanced Features' is required to add PDF Resources. View PDF Resources only without subscription or purchase. The subscription will NOT be automatically renewed, and manual renewal is required after expiration. "Advanced Features" can be used simultaneously on devices logged in with the same Apple ID.
AirSize
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ProDimensions helps you visualize dimensions accurately in two powerful ways: 1. On-Screen Reference: Display shapes of precise dimensions directly on your screen. Includes a library of presets for standard paper sizes, photo prints, and everyday objects. Perfect for checking "How big is a 6-inch phone?" instantly. 2. AR Spatial Mode: Unleash the power of Augmented Reality. Create virtual 2D/3D rectangles of any size and place them in your real-world environment. It helps you visualize furniture, frames, or any object before you buy. Key Features: Precision: accurate to the millimeter. Ad-Free: Focus on your tasks without distractions. Versatile: Switch seamlessly between AR and Screen modes.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | PartSets | AirSize |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 宗林 郭 | 孝龙 刘 |
In-app purchases
PartSets
- Advanced Features(Trial 1week)Free
- Advanced Features(A week)$0.29
- Advanced Features(A Month)$0.49
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- Advanced Features(A year)$4.99
- Advanced Feature(Forever)$11.49
AirSize
- 妙测 Pro$0.99









