Halftone Scanning Resolution vs uQall
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Halftone Scanning Resolution
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This app calculates the scanning resolution of halftones according to the scaling percentage, halftone factor and halftone screen ruling used.
uQall
This business communication tool provides secure voice, video, and messaging for users of specific IP PBX systems. It offers advanced call management features, contact synchronization, and presence status, ensuring reliable business communication.
- SIP-based voice, video, and messaging
- Up to 8 SIP accounts
- Contact list synchronization
- Full call functionality
- Secure voice and messaging
- Presence status support
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Epygi uQall is a SIP-based softphone designed exclusively for Epygi QX/UC IP PBX products. Optimized for reliability and ease of use, uQall enables secure voice, video, and messaging communication for business users. The app is not compatible with third-party VoIP products or services. Key Features: * Quick auto-provisioning via QR code scanning * Support for up to 8 SIP accounts across one or multiple Epygi QX/UC IP PBXs * Automatic synchronization with the mobile device’s contact list and the Epygi IP PBX phone book * Full call functionality, including blind and attended transfers, three-way calls, call waiting, call hold, and voicemail indication * SIP-compatible text messaging * Reliable incoming call delivery, even when the app is closed * Intelligent network selection for PBX registration (LAN, WAN, public IP, or FQDN) * Calling directly from the device’s native dialer * Seamless handling of incoming mobile calls without interrupting active uQall calls * Remote control of Do Not Disturb (DND) and Call Forwarding on the Epygi IP PBX * Support for Epygi IP PBX Multi Programmable Keys (MPKs), enabling extension monitoring, speed dialing, shared voicemail access, call parking, and schedule switching * Call quality indicator and detailed call history * Video calling support * Secure voice calls and secure messaging * Presence status support * SMS and WhatsApp messaging
Screenshots
Verdict
The clearest difference is price: uQall at Free against Halftone Scanning Resolution's $0.99. uQall also leads on update cadence (monthly vs every 38 months). On ads, in-app purchases, device support and iOS requirement 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
uQall is free to download; Halftone Scanning Resolution costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Halftone Scanning Resolution ships an update every 38 months, uQall monthly. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.
| Parameter | Halftone Scanning Resolution | uQall |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 3.5 (8 ratings) — better |
| Number of ratings | — | 8 — better |
| Update frequency | Every 38 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 117 MB |
| Age rating | 4+ | 17+ |
| Developer | Manfred Breede | Epygi Technologies, Ltd. |
In-app purchases
Halftone Scanning Resolution
No in-app purchases
uQall
No in-app purchases
Questions
Is Halftone Scanning Resolution free?
Is uQall free?
Do Halftone Scanning Resolution or uQall have ads?
Which is updated more often, Halftone Scanning Resolution or uQall?
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