REDtone IoT vs HydroBot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
REDtone IoT
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This application allows user to leverage sensors, smart gateways and monitoring systems to collect information and control various parameters on their farms and analyse real-time data in order to make informed decisions (Smart Irrigation) User are able to control water resources to meet demand, trigger actions based on sensor data to switch water on and off, depending on irrigation needs and water resources level. (Smart Fertigation) Smart fertigation is a fertiliser application method, in which dissolved fertilisers are delivered to the crops through the irrigation system. It delivers just right combination of water and nutrients directly to the roots of each plant, according to the crop development cycle. It is suitable for automated commercial greenhouses, hydroponics operations and agriculture fields.
HydroBot
This app uses specially tuned sound vibrations to help expel trapped water from your device's speakers. Simply tap to activate the sound and restore clearer audio after exposure to moisture.
- Water-ejection sound technology
- One-tap activation
- Minimalist interface
- Lightweight and fast
- Helps restore speaker clarity
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HydroBot – Clear Water from Your Device! HydroBot plays a specially tuned sound designed to help push water out of your device’s speakers. If your phone has been exposed to moisture, HydroBot can generate audio vibrations that may help expel trapped water and restore clearer sound. Just tap start and let HydroBot run. The simple interface makes it easy to quickly activate the sound and help clear out excess moisture. HydroBot is lightweight, fast, and built for those moments when your phone speaker doesn’t sound quite right after getting wet. Features • Water-ejection sound designed to help clear moisture from speakers • Simple one-tap activation • Clean, minimal interface • Quick and easy to use whenever you need it HydroBot uses sound vibrations that may help remove water from device speakers. Results may vary depending on the amount of water and the device model. Subscription HydroBot offers a premium subscription that unlocks full access to the app. • Weekly subscription: $3.99 per week • Payment will be charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period • Your account will be charged for renewal within 24 hours prior to the end of the current period • Subscriptions can be managed and auto-renewal can be turned off in your App Store account settings after purchase Privacy Policy https://sites.google.com/view/hydrobot-app/privacy Terms of Use https://sites.google.com/view/hydrobot-app/terms
Screenshots
Verdict
The clearest difference is in-app purchases: REDtone IoT at none against HydroBot's 2. REDtone IoT also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, 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. HydroBot sells 2 in-app purchases, starting at $1.99 per 7 days. REDtone IoT asks for nothing beyond the download.
REDtone IoT ships an update every 3 weeks, HydroBot monthly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.
| Parameter | REDtone IoT | HydroBot |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 37 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | REDtone Digital Berhad | Talk or Not, Inc. |
In-app purchases
REDtone IoT
No in-app purchases
HydroBot
- Water Ejector Premium3 Days trial$1.997 Days
- hydrobot lifetime$4.99









