SubVT vs Block Checker
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SubVT
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SubVT (Substrate Validator Toolkit) is an iOS application for phones and tablets that provides validator node operators with tools that aid them in running their validators on Substrate-based blockchain networks. The app provides through a well-designed UX and UI: - Network status information - Active and inactive validator lists - Validator details - Validator performance and income reports - Network reports - Configurable notifications about the on- and off-chain events and transactions related to the validators Download SubVT today to begin monitoring your network and validators.
Block Checker
Quickly determine if a website is blocked in Russia or if it restricts users from Russia. This tool provides instant results from up-to-date databases, allowing users to check domain status without registration. It's designed for developers, administrators, and anyone curious about website accessibility.
- Instant block status check
- Two directory types (Blocked by RKN, Blocking Russia)
- Up-to-date database
- No registration required
- Smart search by partial name
- Minimalist interface
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Instant block check β just enter a domain Block Checker is your personal directory of blocked resources. In seconds, find out whether a website is blocked in Russia or whether it blocks users from Russia. Two directories: β’ Blocked by RKN β domains blocked by Roskomnadzor β’ Blocking Russia β websites that independently block Russian IP addresses Why Block Checker: β’ Instant results β data loads in fractions of a second β’ Up-to-date database β regular synchronization with trusted sources β’ No registration β just open and check β’ Smart search β find domains by partial name β’ Minimalist interface β nothing extra Who itβs for: β’ Web developers β check the availability of your services β’ System administrators β diagnose connectivity issues β’ Website owners β monitor the status of your resources β’ Curious users β understand why a site is unavailable Donβt guess β check it in seconds with Block Checker.
Screenshots
Verdict
The clearest difference is update cadence: SubVT at every 2 months against Block Checker's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SubVT ships an update every 2 months, Block Checker every 4 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.
| Parameter | SubVT | Block Checker |
|---|---|---|
| Price | Free | Free |
| Positive reviews | β | 66.7% of reviews |
| Update frequency | Every 2 months β better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | β | Free |
| Devices | iPhone, iPad, Apple Watch β better | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details β not scored | ||
| Size | 52 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Helikon Teknoloji ve Medya Ticaret Limited Sirketi | ONLYAPPS |
In-app purchases
SubVT
No in-app purchases
Block Checker
No in-app purchases









