Antenna GT vs Geph
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Antenna GT
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This application provides the ability to compute the performance (aka 'figure of merit') of a parabolic reflector antenna. To use this app you will need to measure the noise produced (dB above cold sky noise) by the Sun at the desired radio frequency. To compute results please enter: Antenna Site location; Antenna ID; Antenna Size; Antenna configuration; Polarization of test; Frequency of test; and Antenna elevation. The application will then go and automatically get the most current solar flux to calculate the results. The application then computes the results and stores multiple result runs in a log that can be emailed to yourself or others.
Geph
This app provides a zero-knowledge, open-source VPN service focused on user privacy. It offers free medium-speed browsing and paid tiers for enhanced speed and server access, all while maintaining transparency through its open-source code.
- Zero-knowledge privacy
- Open-source software stack
- Free medium-speed browsing
- Paid tiers for enhanced speed
- Access to more servers
- Transparent and accountable
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Robust zero-knowledge privacy — We don't log you, because we can't. We use zero-knowledge authentication so that we can never associate your browsing activity with your identity. Transparent and accountable — Geph's entire software stack is open source and available on GitHub. Our managing organization is registered in Estonia, an EU jurisdiction with strong privacy laws. Accessible to all — We believe that everyone has the right to internet privacy. So we offer entirely free medium-speed browsing for everyone. For €6/month, you can purchase greatly enhanced speed and access to more servers. Privacy Policy / Terms of Use: https://github.com/geph-official/geph5/wiki/Policies-and-terms
Screenshots
Verdict
The clearest difference is in-app purchases: Antenna GT at none against Geph's 1. Geph's advantage is update cadence (monthly vs every 47 months) and iOS requirement (16.6 vs 26.0). On price, ads 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. Geph sells 1 in-app purchase, starting at $5.99 per month. Antenna GT asks for nothing beyond the download.
Antenna GT ships an update every 47 months, Geph monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Antenna GT | Geph |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.1 (191 ratings) — better |
| Positive reviews | — | 37.7% of reviews |
| Number of ratings | — | 191 — better |
| Update frequency | Every 47 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Dave Massey | Gephyra OU |
Bugs and requests
Antenna GT
Not enough reviews yet to summarise bugs or requests.
Geph
Reported bugs
15 issues- App frequently opens to a blank screen and cannot be used
- VPN cannot be turned off after opening
- App crashes and does not connect easily
- Connection times out with 'Transport(broker call timed out)' error
- App freezes after loading
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- Download and upload rates display zero and do not change
- App does not react or reacts with delay when disconnecting
- Servers are detected and blocked quickly
- VPN sharing on local network does not work or has no on/off button
- Login errors with 'TypeError: undefined is not an object'
- App not working after updates
- Cannot migrate old account or register new one
- Free settings eliminated after update
- iOS version not connecting at all
- iOS version has slow response bug and cannot establish network connection
Requested features
10 requests- Support for sharing VPN connection via hotspot on iOS
- Faster updates for iOS
- More free servers
- Add more US locations to iOS
- Add split tunneling feature
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- Improve iOS/iPadOS version
- Add background app refresh for iPhone
- Improve customer support for paid users
- Increase free account speed to 300 kb/s on iOS
- Add mainland China traffic exclusion/split tunneling
In-app purchases
Antenna GT
No in-app purchases
Geph
- 1 Month of Unlimited Speed$5.991 Month









