GUID vs SnapSize
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GUID
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What is a GUID? =========== A GUID (Globally Unique Identifier) is a pseudo-random string consisting of 32 letters (A-F) / numbers (0-9) and 4 hyphens. The application area for GUIDs is manifold. For example, GUIDs can be used to uniquely identify objects, files, or documents. What is GUID generator? ================== The GUID generator is a program for generating GUIDs. Furthermore, it is possible to perform a syntactic check of strings, whether they meet the requirements of a GUID, ie the 8-4-4-4-12 format consisting of the allowed characters. Particularities ========== The GUID generator was developed with SWIFT specifically for iOS. As a result, it is optimally integrated into the system, offers optimum app feeling, best performance, requires minimal storage space and system-specific functionalities. Create GUID ========= The core functionality of this program is generating GUIDs. The GUIDs can be generated either in upper case letters or in lower case letters. Check GUID ========= To check the syntax of individual strings, they can be entered in the result text field. Valid strings are colored in green, invalid strings with red color. Interoperability =========== The exchange with other applications is possible via the device's own clipboard (copy and paste) as well as via sharing function of iOS. Summary of functions: ================ - Generate GUID - Check string for GUID-syntax - Copy - Paste - Share - Convert to upper case - Convert to lower case
SnapSize
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SnapSize is an app that allows you to measure the length of objects captured by the camera at any time, whenever you need. It enables you to store both the camera images and 3D data together, so if you're unable to measure immediately or if you made a mistake in selecting the measurement point, you can use the app to measure later. The results of your measurements can be saved as images, making it easy to share information or add them to documents. [Main Features] ・Capture and save the data. ・Measure distances anytime by using the saved data. ・Output the results of depth since 3D data is saved. ・Save and share captured data and measurement results. [compatible devices] iPhone 11 Pro iPhone 11 Pro Max iPhone 12 Pro iPhone 12 Pro Max iPhone 13 Pro iPhone 13 Pro Max iPhone 14 Pro iPhone 14 Pro Max iPhone 15 Pro iPhone 15 Pro Max iPhone 16 Pro iPhone 16 Pro Max iPad Pro 11-inch iPad Pro 12.9-inch iPad Pro 13.0-inch
Screenshots
Verdict
The clearest difference is update cadence: SnapSize at every 6 months against GUID's every 39 months. 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. Neither carries in-app purchases, so what you see is what you pay.
GUID ships an update every 39 months, SnapSize every 6 months. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.
| Parameter | GUID | SnapSize |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 39 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 8 MB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Jens Nabert | System Friend, Inc. |
In-app purchases
GUID
No in-app purchases
SnapSize
No in-app purchases









