Ruler Box vs PartSets
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler Box
Learn to effectively use various types of rulers with practical examples and user cases. This app introduces over ten different rulers, with more measurement tools planned for future updates.
- Learn ruler usage
- Practical user cases
- Over ten rulers included
- Caliper measurement tools
- Upcoming ruler types
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Do you want to learn how to use the rulers? There are many rulers in the world.And also we should learn how to use them. Here we get some rulers which include some user cases.I think it can help your to lean how to use the rulers! Now there are over ten rulers!!!! more and more kinds of rulers（caliper） are comming soon!!
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.
Screenshots
Verdict
The clearest difference is review sentiment: Ruler Box at 45% against PartSets's 0%. Ruler Box also leads on rating (4.3 vs 2.0) and in-app purchases (none vs 5). PartSets's advantage is price (Free vs $0.99). On update cadence, ads 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
PartSets is free to download; Ruler Box costs $0.99 up front. PartSets sells 5 one-off in-app purchases. Ruler Box asks for nothing beyond the download.
Ruler Box holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: Ruler Box has 94 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 45% of Ruler Box's written reviews are positive against 0% of PartSets's.
Ruler Box ships an update every 7 months, PartSets every 5 months. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.
| Parameter | Ruler Box | PartSets |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.3 (94 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 45.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 94 — better | 1 |
| Update frequency | Every 7 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 8.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 16 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 志荣 杨 | 宗林 郭 |
Customer experience
Ruler Box
PartSets
In-app purchases
Ruler Box
No 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
