QR Authenticator vs gther Sync
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
QR Authenticator
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QR Auth is a system which helps anyone with a smartphone to ensure that items within the home or business are checked within agreed times set by the user. Users register on the website, app.qr-auth.com and create as many QR codes for items that need to be monitored. The first time a user scans a QR code created by the system using the app, the devices unique ID is captured. Unregistered devices are provided options specific to them. The user scans a QR code which is fed back to a monitoring system in real-time allowing the user or management to check that the codes have been scanned during the period(s) required. A QR code can be configured via the website to display options when it is scanned further enhancing what the user is able to do.
gther Sync
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Sync is the ultimate sales tool to use at your events. For sales pros: See a personalised schedule of meeting, sessions and resource bookings. Stay up to date with booking updates. Get push notifications when your bookings are created, edited or cancelled. Create bookings quickly and easily (Coming soon!) Export event data and leads from the Sync web platform to your CRM. For event managers: Centrally manage all the bookable spaces at your event Get a concrete picture of team activity and space utilisation Send out email or push notifications to on-site teams to keep them in the loop instantly Control permissions of where and when bookings can be made down to the individual level Manage larger scale hospitality or gala events Utilise the Sync web platform to run fast check-in and badging Use Sync at any event, so that you own your lead data, boost lead gen, and minimize post-event data entry.
Screenshots
Verdict
QR Authenticator and gther Sync are too close to call on the numbers: across 6 compared parameters โ price, update cadence, ads and in-app purchases among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
QR Authenticator ships an update every 10 days, gther Sync fortnightly. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.
| Parameter | QR Authenticator | gther Sync |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days โ better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 โ better | 15.5 |
| Further details โ not scored | ||
| Size | 31 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Custom Cumputer Services Wales | gther |
In-app purchases
QR Authenticator
No in-app purchases
gther Sync
No in-app purchases
Questions
Is QR Authenticator free?
Is gther Sync free?
Do QR Authenticator or gther Sync have ads?
Which is updated more often, QR Authenticator or gther Sync?
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