Proximity Scanner vs Key ID
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proximity Scanner
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The Proximity Scanner is intended for use by PG&E employees and contract-staff. The app uses your phone's GPS to verify WDR permit coverage and local environmentally sensitive areas, including contaminated sites, wetlands, and Areas of Special Biological Significance (ASBS). It considers the extent of each Regional Water Quality Control Board (RWQCB) and contaminated sites in the RWQCB and Department of Toxic Substances Control (DTSC) listed sites within PG&E’s service area in California. The Proximity Scanner App is to be used in conjunction with the Vault Dewatering form as part of the vault dewatering procedure and helps PG&E Employees and Contractors determine if clean vault water may be discharged to land in certain locations after land owner approval is received and documented.
Key ID
Organize and catalog keys or other items by capturing images and relevant information. The app uses image scanning and a search feature with Apple's Image Recognition to help identify and locate items. Your data is backed up to iCloud for easy restoration.
- Catalog items with images and information
- Image scanning for item identification
- iCloud backup and restore
- Passcode security prompt
- Search feature with image recognition
- Organize small or unusual items
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Welcome to KeyID. Have you ever come across something (like a key) in a drawer and wondered what it was used for? The KeyID app can help you organize keys or other items by providing a tool to catalog items by capturing and storing images and relevant information about the item. The image scanning feature of KeyID helps identify the items in an easy to view scrollable UI. The information you create within the app is also backed up to your iCloud account for safety and security so if you ever delete the app or get a new phone, you can easily restore the app and database information. KeyID also includes security features and allows you to setup a passcode prompt when launching the app. For large databases, KeyID includes a search feature to assist in locating unfamiliar items you may have previously cataloged. If the item was previously scanned into the app, the search feature can be used to track it down. KeyID's search uses Apple's Image Recognition feature (similar to FaceID) to compare items already in the app database. KeyID can be used to track small or unusual items that may be difficult to identify. You simply scan, inventory and catalog the item for future reference.
Screenshots
Verdict
The clearest difference is in-app purchases: Proximity Scanner at none against Key ID's 1. Proximity Scanner also leads on iOS requirement (8.0 vs 16.0). Key ID's advantage is update cadence (every 2 months vs every 11 months). On price, 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
Both are free to download. Key ID sells 1 one-off in-app purchase. Proximity Scanner asks for nothing beyond the download.
Proximity Scanner ships an update every 11 months, Key ID every 2 months. The most recent releases landed on October 26, 2026 and October 6, 2026 respectively.
| Parameter | Proximity Scanner | Key ID |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.6 (5 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 11 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 31 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Jacobs Engineering Group Inc | Blast777 LLC |
In-app purchases
Proximity Scanner
No in-app purchases
Key ID
- Unlimited license$2.99





