EGD2021 vs ABT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EGD2021
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This version of the app is written by Lam Yeung Shun under the supervision of Dr. Shiu Yin Yuen. The application will act as a guide dog, as an auxiliary tool to guide the visually impaired people (VIP) to the destination in both indoor and outdoor environments. Under the guidance of the navigation, the VIP can easily follow the instructions from the recorded path. The path can be recorded by themselves or received from other users.
ABT
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ABT-Virtual is the ultimate softphone app for seamless communication. Make free app-to-app calls and stay connected with friends and family effortlessly. Install now and experience limitless communication.
Screenshots
Verdict
The clearest difference is update cadence: ABT at every 11 months against EGD2021's every 25 months. EGD2021's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, 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.
EGD2021 ships an update every 25 months, ABT every 11 months. The most recent releases landed on September 8, 2026 and August 1, 2026 respectively.
| Parameter | EGD2021 | ABT |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 25 months | Every 11 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 1 MB | 97 MB |
| Age rating | 4+ | 17+ |
| Developer | Shiu Yin Yuen | Riaan Jonathan van Stryp |
In-app purchases
EGD2021
No in-app purchases
ABT
No in-app purchases
