Comparison

F3Analyzer vs VexVPN

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

F3Analyzer

This app tests proxy server links by connecting from a remote location to provide detailed performance metrics. It offers insights into latency, download/upload speeds, and exit IP addresses, along with a security audit of the link's configuration.

Highlights
  • Remote server testing
  • Latency and speed measurements
  • Exit IP address reporting
  • Link configuration security audit
  • Link library with search and sort
  • Connection status monitoring
Features
Read full description

F3Analyzer hands a Shadowsocks, Trojan, VLESS or VMess share link to our service, which dials that server from its testing location. At no point does your phone reach the server under test. You get evidence, not a promise: a verdict, plus whichever of latency, download, upload and exit address could be measured. How a test works Bring a link in by pasting it, scanning its QR code with the camera, picking a photo of that code, or opening a text file. Your phone decodes and checks it first: a link with no server address, a private or reserved IP address written into it, or a transport the service can't dial is refused there, and no test is spent. Before the first test the app asks, and says our service receives the link as pasted, with the password or key the server needs. A test takes up to about a minute, and canceling spends nothing. What comes back Working: the server answered, and download, upload and the exit address were all measured. Partially working: the server answered, but one or more of those measurements is missing. Unreachable: the server name didn't resolve, or the server didn't answer or refused the connection. Not testable: the link can't be dialed as written, or its format isn't one the service dials. Badges such as Exit flagged add context but never change the verdict. Latency is the median of up to 5 HTTP round-trips via the server; upload is marked approximate. Figures are measured from the testing location, not from your phone. Reports other than Not testable give the test's duration and that location when known. Where available, the exit profile shows the exit address with its location, network, flags and a 0–100 risk score from an outside reputation service, banded Low, Elevated or High. The score reflects the address type and attacks seen from it, not the server itself. A tested report also shows the decoded configuration, with passwords and keys hidden until you reveal them, and a security audit run on your phone: 12 checks on the link's parameters, such as certificate verification turned off or a weak Shadowsocks cipher, with findings graded Critical, High, Medium or Minor. The audit reads how a link is set up, not who runs the server. Your library Tested links stay in a library on your phone with their latest result. Search, sort by last tested, latency, download or exit country, filter by verdict, mark favorites and re-test with a swipe. Turning off Auto-save results deletes stored results, and later reports are shown but not kept. My connection After a one-time prompt, this tab shows how your connection looks from outside: your public address (masked until you reveal it), location, network and risk score, which DNS server answers for you, and whether its answers for 8 well-known names agree with an encrypted resolver. Nothing from this tab is stored in the app. Free, and Full Report Free, with ads: 5 tests per day, reset at midnight. A test counts only when the service dialed the server; a refused link, a name that didn't resolve, a canceled test or a busy service costs nothing. The free tier holds 20 servers and 5 favorites, shows each audit finding's severity and title, and lets Batch decode a pasted list and test one link from it. Full Report, a one-time in-app purchase, adds: The explanation and fix for every audit finding. No daily test limit, and no library or favorite caps. Tests still run one at a time. Batch runs of up to 50 pasted links. Compare: two tested servers from your library side by side. Export: chosen library entries as a JSON or plain-text file, with passwords and keys masked unless you include them. No ads. Restore purchase is always in Settings. What it doesn't do F3Analyzer does not connect you to the servers it tests: it creates no tunnel, routes no traffic and installs no profile. There is nothing to sign in to and no analytics of its own. Beyond purchases and ads, only tests you run and the My connection tab use the network, and each asks the first time.

About

VexVPN

This app acts as a client for connecting to your Xray-based VPN servers. Easily import subscription links or server configurations to access a list of servers and activate your VPN with a single tap. It supports various advanced protocols and transports, offering features like country flags, ping times, and a kill switch.

Highlights
  • Connect to Xray-based VPN servers
  • Import subscription links or server configurations
  • Supports VLESS, VMess, Trojan, Shadowsocks protocols
  • Multiple transport options (WebSocket, gRPC, etc.)
  • Country flags and ping times for servers
  • Auto-connect and kill switch functionality
Features
Read full description

VexVPN — клиент для подключения к вашим VPN-серверам на базе Xray. Вставьте ссылку подписки от своего провайдера или из панели своего сервера — приложение загрузит список серверов, и VPN включается одной кнопкой. • Протоколы VLESS (включая Reality и Vision), VMess, Trojan, Shadowsocks • Транспорты TCP, WebSocket, gRPC, XHTTP, HTTPUpgrade, TLS • Подписки https://, отдельные ссылки серверов и полная конфигурация Xray JSON • Флаги стран и пинг до каждого сервера • Автоподключение, восстановление связи и защита при обрыве (Kill Switch) • Срок и остаток трафика подписки, если их сообщает провайдер • Без регистрации, рекламы, аналитики и журналов посещений Приложение не предоставляет собственные серверы и не продаёт доступ: оно подключается только к тем серверам, которые добавили вы.

Screenshots

F3Analyzer3 screens
VexVPN4 screens

Verdict

The call

The clearest difference is in-app purchases: VexVPN at none against F3Analyzer's 1. VexVPN also leads on ads (none vs shown) and update cadence (every 2 days vs every 5 days). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. F3Analyzer sells 1 one-off in-app purchase. VexVPN asks for nothing beyond the download.

UpkeepUpdate frequency

F3Analyzer ships an update every 5 days, VexVPN every 2 days. Both last shipped on November 6, 2026.

Scorecard4 real differences · 6 level
F3Analyzer versus VexVPN: the parameters behind the verdict, then further details
ParameterF3AnalyzerVexVPN
PriceFreeFree
Rating—4.2 (5 ratings) — better
Positive reviews90.9% of reviews—
Number of ratings—5 — better
Update frequencyEvery 5 daysEvery 2 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size8 MB61 MB
Age rating4+4+
DeveloperARTIST IN YOU LTDCEREBRA TECH S.R.L.

Customer experience

F3Analyzer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive90.9%
Neutral9.1%
Negative0.0%

VexVPN

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

F3Analyzer

One-time1
  • F3Analyzer Full Report$12.99
None

VexVPN

No in-app purchases

Questions

Is F3Analyzer free?
F3Analyzer is free to download, with in-app purchases available.
Is VexVPN free?
VexVPN is free to download, with no in-app purchases.
Do F3Analyzer or VexVPN have ads?
F3Analyzer shows ads; VexVPN does not.
Which is updated more often, F3Analyzer or VexVPN?
F3Analyzer ships an update every 5 days, and VexVPN every 2 days. Most recently, F3Analyzer was updated on November 6, 2026 and VexVPN on November 6, 2026.

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