VerbinderApp Calendar vs Modbus Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VerbinderApp Calendar
Easily schedule events with people from your phone contacts without needing email addresses or usernames. Send invitations directly, allow recipients to accept or decline, and sync plans with existing calendars. Ideal for coordinating casual meetups, appointments, and family gatherings.
- Invite from phonebook
- Accept/decline event invitations
- Create time polls
- Use existing calendars
- Private by design
- Free for everyday planning
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Plan events with your phone contacts. VerbinderApp is the calendar app that works with your phone contacts. Plan with your partner, family, friends, and groups without email addresses, usernames, or messy group chats. Send an event directly to someone from your phonebook. They can accept or decline, and the plan can be saved to the calendar they choose. Whether it’s a coffee catch-up, school meeting, doctor appointment, dinner with friends, family visit, workout, or birthday plan, VerbinderApp helps everyone stay in sync. Key Features Invite from your phonebook Choose people from your contacts and send plans without asking for email addresses. Tap Accept and it’s in your calendar Received events can be accepted, declined, and saved to the calendar you choose. Find a time together Create time polls and let everyone vote on what works best. Use the calendars you already have Connect your calendars, check availability, and choose where new plans are saved. Private by design Your personal calendar stays on your device. Delete your account, and your data is deleted too. Free for everyday planning No subscriptions. No hidden fees. Just simple planning with your people. Why VerbinderApp? Most calendars are built around email. VerbinderApp is built around the people already in your phone contacts. No more chasing someone to add a plan. No more searching for email addresses. No more planning everything in group chats. Just send the plan, let them accept, and keep everyone’s calendar up to date. VerbinderApp — plan with your people.
Modbus Viewer
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Modbus Viewer is a lightweight and powerful tool for monitoring and interacting with Modbus TCP devices.
Screenshots
Verdict
The clearest difference is update cadence: Modbus Viewer at every 2 days against VerbinderApp Calendar's fortnightly. Modbus Viewer also leads on iOS requirement (18.5 vs 26.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
VerbinderApp Calendar ships an update fortnightly, Modbus Viewer every 2 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | VerbinderApp Calendar | Modbus Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 18.5 — better |
| Further details — not scored | ||
| Size | 45 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | VerbinderApp UG (haftungsbeschraenkt) | Erdem Bilgicer |
In-app purchases
VerbinderApp Calendar
No in-app purchases
Modbus Viewer
No in-app purchases
Questions
Is VerbinderApp Calendar free?
Is Modbus Viewer free?
Do VerbinderApp Calendar or Modbus Viewer have ads?
Which is updated more often, VerbinderApp Calendar or Modbus Viewer?
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