ViewBack vs Voucher Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ViewBack
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This application allows a user to configure and monitor RF levels of a Vislink ViewBack receiver. The application communicates with the device via Bluetooth™. Operating in the 2GHz licenced band, the receiver supports Vislink proprietary robust LMS-T demodulation in addition to low latency H.264 decoding. Outputs include HDMI and HDSDI, the latter being switchable, in wireless camera applications, between the local camera video and the return received video. A lens interface is provided to utilise the ‘return’ button of the camera lens for switching the HDSDI output. On switching, picture interruption is avoided by use of local ‘frame lock’ information extracted from the camera source. The Vislink ViewBack is supplied with flexible quarter-wave antennas, and various mounting options for camera and Steadicam rigs.
Voucher Assistant
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Voucher Assistant: Self-Service UniFi Guest Access Streamline your guest WiFi management with this intuitive self-service app for UniFi networks. Perfect for businesses, events, and hospitality venues. Key Features: • Create customizable voucher buttons with flexible durations • Generate and display QR codes for instant WiFi network access • Smart voucher timeout system to prevent duplicate usage • Link specific WiFi networks to voucher buttons • Secure settings with password protection • Modern interface with customisable colours and appearance • Support for multiple UniFi network configurations Advanced Features: • Intelligent timeout management to control voucher distribution • Support for various WiFi security types (WPA3, WPA2, etc.) • Hidden network support • Comprehensive onboarding process for easy setup • Automatic migration from previous versions • Secure credential storage Compatible with: • UniFi Dream Machine Pro • UniFi Console (Linux) • UniFi OS Consoles • Legacy UniFi Controllers (This is not an official Ubiquiti/UniFi application) (WiFi icons credit: Freepik - Flaticon https://flaticon.com)
Screenshots
Verdict
The clearest difference is update cadence: Voucher Assistant at every 3 weeks against ViewBack's every 21 months. ViewBack's advantage is iOS requirement (11.0 vs 17.6). 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.
ViewBack ships an update every 21 months, Voucher Assistant every 3 weeks. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.
| Parameter | ViewBack | Voucher Assistant |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 21 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 12 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Vislink | Samuel Hepburn |
In-app purchases
ViewBack
No in-app purchases
Voucher Assistant
No in-app purchases









