HFpager vs VentControl
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HFpager
This utility app enables the exchange of short text messages through audio and radio channels using IFSK modulation. It offers basic reception and transmission functions for free, with a subscription unlocking all features and removing ads.
- IFSK modulation for audio messaging
- Send and receive short text messages
- Utilizes audio and radio channels
- Basic functions free
- Subscription removes restrictions and ads
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The program is designed to generate and receive an audio signal using IFSK (Incremental Frequency Shift Keying) modulation. Used to exchange short text messages via any audio and / or radio channel. For a detailed description, see the project website https://nvis.club/hfproxys/hfpager/hf-pager Basic functions work without a subscription: reception / transmission. With a subscription, all restrictions are removed and there is no advertising. Privacy Policy and User Agreement: https://ildd.ru/bi/hfpager/hfpager_politica/
VentControl
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VentControl - бесплатное мобильное приложение для дистанционного управления системами вентиляции по сети Wi-Fi. Управляйте вентиляцией со смартфона — просто, удобно, эффективно! Пульт управления всегда у вас в кармане. Мобильное приложение VentControl позволяет дистанционно контролировать и настраивать систему вентиляции в доме, офисе, на предприятии в зоне действия вашей сети Wi-Fi. Регулируйте температуру, скорость потока воздуха, устанавливайте задания и режимы работы прямо со смартфона. Интуитивно понятный интерфейс, уведомления о неполадках, архив аварий, энергосбережение и полная автоматизация — всё для вашего комфорта и приятного микроклимата.
Screenshots
Verdict
The clearest difference is in-app purchases: VentControl at none against HFpager's 1. VentControl also leads on ads (none vs shown). HFpager's advantage is device support (3 vs 1) and iOS requirement (12.4 vs 16.0). On price and update cadence 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. HFpager sells 1 in-app purchase, starting at $9.99 per year. VentControl asks for nothing beyond the download.
HFpager ships an update every 3 months, VentControl every 2 months. The most recent releases landed on September 27, 2026 and October 7, 2026 respectively.
| Parameter | HFpager | VentControl |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.4 — better | 16.0 |
| Further details — not scored | ||
| Size | 26 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Dmitry Likhtarov | ELECTROTEST ENGINEERING |
In-app purchases
HFpager
- Подписка 12 месяцев7 Days trial$9.991 Year
VentControl
No in-app purchases
