Salt mSign vs CalAmp K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Salt mSign
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Salt mSign is a mobile security MFA token for authentication of the user identity during login and authentication/verification of transactions after login. Salt mSign is ‘connected’ in that the authentication responses are returned directly to the authentication server thereby enabling authentication that is independent of the delivery channel that initiated the request. What can Salt mSign do? - Connected Biometric 2FA Login for User access via RADIUS, Microsoft ADFS, SAML Federated Login for cloud, Shibboleth and Browser-based Web Applications. - Multi-Factor Authenticator (MFA) for all the organization’s Mobile Apps Supporting Multiple Methods of Sign-In & Authentication Independent of the service delivery channel. - Single Authenticator for all the organization’s Mobile Apps Supporting Multiple Methods of Sign-In & Authentication via Inter-App. Typical Uses: - Mobile Soft Token used for 2FA Biometric Login to Internet Banking, e-Government Portals, and Corporate Online Services. - High-Value Transaction Signing with WYSIWYS (What You See Is What You Sign). - Biometric MFA Login for Remote Network Access: RADIUS, ADFS, Shibboleth. - Authentication for other Mobile Apps on the same device. - Quorum Approvals and Advanced Workflows with separation of duties where the Initiator of Payment Instruction is not authorized to approve; with multiple Authorisers. - Hardware Token replacement. - Card Not Present Payments, 3D Secure support. Salt mSign requires you to register your App. Please contact Salt Group for registration information. Features include: - Biometric Sign-In with TouchID, FaceID or PIN - Rich Content and free-form payload information - WYSIWYS (What You See Is What You Sign) - Inclusion of supplementary user input - Signature code returned via the mobile network - Support for multiple signatories - Support for Public Key Cryptography; Salt mSign supports the use of symmetric and asymmetric keys in signing. - Figaro and secure QR code support for offline delivery of payload information: using the device camera to scan Figaro/QR codes that contain payload information for offline signing. - Enhanced Rich Content delivery of large payloads including the capacity for data formatting and payload content consisting of graphics images. - Issuer configurable profiles including PIN length, PIN retry thresholds, weak PINs, token display timeouts, Signature Code lengths, language support, issuer branding - Re-deployable in the field, anywhere in the world - Full browser independence - Familiar user interface
CalAmp K
This app helps manage public or private fleets to improve savings, safety, and customer service. Users can track vehicles, review historical routes, and manage vehicle details.
- Vehicle tracking
- Historical route mapping
- Vehicle property management
- Fleet savings improvement
- Enhanced safety features
- Improved customer service
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Whether your fleet is public or private, CalAmp can help you increase savings, improve safety, enhance customer service and more. With the CalAmp app you can track vehicles, map historical routes, and view/edit vehicle properties.
Screenshots
Verdict
The clearest difference is device support: CalAmp K at 3 against Salt mSign's 1. CalAmp K also leads on iOS requirement (12.0 vs 16.4). On price, update cadence, 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.
Salt mSign ships an update every 4 months, CalAmp K every 2 months. The most recent releases landed on October 10, 2026 and October 23, 2026 respectively.
| Parameter | Salt mSign | CalAmp K |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (590 ratings) — better |
| Positive reviews | — | 84.6% of reviews |
| Number of ratings | — | 590 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 53 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Salt Group | Synovia Solutions LLC |
Bugs and requests
Salt mSign
Not enough reviews yet to summarise bugs or requests.
CalAmp K
Reported bugs
8 issues- Cannot login on WiFi connection (iPhone)
- Map button takes ~1 minute to load
- Login credentials not persisted after inactivity
- App buffering excessively after updates
- GPS stop detection fails to indicate arrival
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- Engine diagnostic reporting incomplete across buses
- App freezes intermittently
- Stop indication malfunction on route description
Requested features
5 requests- Live tracking prioritized over history view
- Turn-by-turn GPS navigation to tracked vehicles
- Improved documentation for app-specific features
- Better substitute driver management on map display
- Reduce or eliminate rating prompt frequency
In-app purchases
Salt mSign
No in-app purchases
CalAmp K
No in-app purchases







