Modbus Connect vs BellAlert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Modbus Connect
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Modbus Connect is an HMI app for monitoring and controlling Modbus TCP devices on a local network from iPhone. With Modbus Connect, you can configure devices, create tags, and build a visual dashboard with widgets for control and live variable display. Main features: - Connection to Modbus TCP devices on a local network - Configuration of coil, input, holding register, and input register tags - Custom visual dashboard - Control and indicator widgets - Read bool, 16-bit unsigned, and 32-bit float values - Buttons, push buttons, lamps, fan, displays, level, and gauge widgets - Built-in DEMO mode for testing without real hardware Intended use: - Integration testing - Process variable visualization - Mobile HMI interfaces - Basic field validation of signals and tags Notes: - The app works with Modbus TCP devices - Local Network access is required to connect to the configured device - The user is responsible for validating system configuration and behavior before use in real environments
BellAlert
Assign custom sounds to notifications to instantly know what's happening without looking at your phone. Share unique alert codes with others to send them instant, personalized notifications with their chosen sounds. Manage alerts with timestamps, disappearing notifications, and an "oops" feature to un-ring alerts.
- Custom sounds for each notification
- Shareable alert codes
- Instant alerts on recipient devices
- Home Screen widget for quick alerts
- Undo/cancel sent alerts
- Disappearing notifications
- Private and track-free design
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Some notifications matter more than others. Bell Alerts lets you give each one its own sound — so you know what just happened without even looking at your phone. Create a bell, share its code, and ring it. Everyone you've shared it with gets the alert instantly — each on their own phone, with the sound they picked. Dinner's ready, the dog's at the door, the meeting's starting: make it a bell. MAKE IT YOURS • A different sound for every bell — a dozen original tones to choose from • Per phone: you pick your sound, your family picks theirs • Vibrate-only or mute any bell, anytime • 11 app icons to match your style SEND A BELL IN A TAP • Create a bell — it gets its own private, unguessable code • Share the code; anyone who adds it is subscribed • Ring it from the app — or straight from a Home Screen widget, without opening anything • Changed your mind? "Oops" un-rings it — the alert crosses itself out everywhere STAY ON TOP OF IT • Recent rings at a glance, with timestamps — canceled ones clearly marked • A Home Screen widget shows the latest bells the moment they ring • Disappearing alerts tidy themselves up after a time you set PRIVATE BY DESIGN • No account, no sign-up, no tracking • Bells are private codes — only the people you share them with get the rings • Verified on device with App Check; standard encryption only FOR POWER USERS Bell Alerts can also receive alerts from your own internet server — the same bring-your-own-server idea as the open-source app ntfy. Send a notification from any script or service you run and it arrives as a custom bell on every subscribed phone. It's a software integration over the internet; no extra hardware or accessory is involved. Setup guide included. Make every alert sound like what it is.
Screenshots
Verdict
Modbus Connect and BellAlert are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Modbus Connect | BellAlert |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (11 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Rodolfo Fuentes | Curtis Waldner |
In-app purchases
Modbus Connect
No in-app purchases
BellAlert
No in-app purchases
Questions
Is Modbus Connect free?
Is BellAlert free?
Do Modbus Connect or BellAlert have ads?
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