MyNumberBlocker vs Document GPS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyNumberBlocker
Block unwanted calls from numbers that share the same prefix as your own. This utility prevents telemarketers from spoofing caller IDs to trick you into answering. It ensures your contacts are not blocked and your call logs remain private.
- Block calls by phone number prefix
- Prevents caller ID spoofing
- Excludes contacts from blocking
- Sends blocked calls to voicemail
- Does not send contacts to server
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Stop unwanted phone calls! Have you started getting spam calls from phone numbers that resemble yours? If so, then MyNumberBlocker is for you! Simply enter your phone number and MyNumberBlocker blocks all numbers that have the same prefix as your phone number. Telemarketers use every game in the book to get you to answer your phone. This latest one is to trick you into believing that a friend or someone near you is calling you by spoofing the caller ID. There is currently no other way to stop these calls. Notes: • MyNumberBlocker requests access to your Contacts so that it doesn’t blocks contacts with the same phone number prefix. • MyNumberBlocker does NOT send your Contacts to a server nor communicates in a server in any way. • MyNumberBlocker cannot log your calls. • Blocked calls are sent directly to voicemail.
Document GPS
Securely send and track email attachments with blockchain-based encryption. Control access, revoke permissions, and monitor all user activity in real-time. Offers a private library for recipients to upload encrypted files.
- Blockchain-based security
- Real-time access tracking
- Revoke download/share permissions
- Encrypted file sending/receiving
- Private recipient library
- Timestamped activity log
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Desktop and free Mobile app seamlessly link together so you can track your files on the go. Revoke access from your phone or laptop at any time. Sign up for a 30-day free trial (no credit card required for sign up) via the desktop extension. Japanese and Spanish versions also available on desktop. Track, modify and delete already sent attachments using blockchain-based security. NO need to jump to other platforms to manage your files. - Completely control who can/cannot download, share or access your email attachments, at all times. You can always give or revoke the permission to any recipients to access, download, or share your email attachments. Regardless of who has a copy of your email with your Document GPS attachment, they cannot download, share and access the attachment unless you allow them to. Our system is blockchain-secure, protecting your attachments fully. Never worry again about who sees your files. –Now you can SEND and RECEIVE encrypted attachments. Your recipients can access their Private Library where they can securely upload files with immediate tokenization and encryption. Only you and your recipients can access the Library. Great for healthcare providers, accountants, attorneys, researchers, financial advisors and more. Anyone who needs to have files sent to them in a secure and encrypted platform can benefit from Document GPS. Show your clients you protect their digital privacy from the very first step all the way through the entire process. - Near carbon-free email: prevent attachments from being downloaded or shared when they don't need to be. Do your part by sending "green" attachments for a low carbon email account with Document GPS. - See everything that goes on, in real-time. A timestamped log comes with each document (hence, Document GPS), showing every time each individual user views, shares, downloads, or changes anyone’s permissions on it, in real-time. It shows exactly how many times each user has viewed it. Never worry again about not knowing who sees your files. - Rest easy, with Document GPS’s blockchain security. - All files sent using Document GPS are encrypted, even if the email itself is not, so they are protected from AI scanning the text. - All users have direct and indirect analytics. - Manage your documents without difficulty. --1-Button software gives others a way to interact with you and anyone you invite into your files. --1-Link technology lets you access all the features but with a shareable link you can send to your colleagues or other collaborators. - Within your document workbench is an Email Attachment Library: a list of all the documents you own or have access to. From here, you can monitor and manage your documents and their recipients effortlessly. - All major file types are supported. - There is no limit to the number of attachments you can attach. - Coming soon: users will be able to edit documents using Document GPS - Document GPS uses ShelterZoom's Single Source Of Truth® software technology to create immutable records for sharing of files, communication, collaboration, and permanent record keeping. --See how many times someone has opened your attachments, giving you greater insights into their level of interest in your materials. Great for marketing analytics and budget decisions. --The mobile app lets you take a photo using the app and the picture is NOT stored on your device, providing you greater privacy. --SSOT® security is state of the art
Screenshots
Verdict
The clearest difference is rating: Document GPS at 4.8 against MyNumberBlocker's 2.5. Document GPS also leads on update cadence (every 2 months vs every 38 months). MyNumberBlocker's advantage is iOS requirement (13.0 vs 15.1). On price, ratings volume, ads and in-app purchases 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.
Document GPS holds the better App Store score, 4.8 against 2.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
MyNumberBlocker ships an update every 38 months, Document GPS every 2 months. Both last shipped on November 3, 2026.
| Parameter | MyNumberBlocker | Document GPS |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) | 4.8 (4 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 38 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 2 MB | 87 MB |
| Age rating | 4+ | 17+ |
| Developer | Gruby Solutions | ShelterZoom Corp |
Customer experience
MyNumberBlocker
Document GPS
In-app purchases
MyNumberBlocker
No in-app purchases
Document GPS
No in-app purchases









