Comparison

VerbinderApp Calendar vs Modbus Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Invite from phonebook
  • Accept/decline event invitations
  • Create time polls
  • Use existing calendars
  • Private by design
  • Free for everyday planning
Features
Read full description

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.

About

Modbus Viewer

Features
Read full description

Modbus Viewer is a lightweight and powerful tool for monitoring and interacting with Modbus TCP devices.

Screenshots

VerbinderApp Calendar4 screens
Modbus Viewer4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
VerbinderApp Calendar versus Modbus Viewer: the parameters behind the verdict, then further details
ParameterVerbinderApp CalendarModbus Viewer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightlyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS26.018.5 — better
Further details — not scored
Size45 MB7 MB
Age rating4+4+
DeveloperVerbinderApp UG (haftungsbeschraenkt)Erdem Bilgicer

In-app purchases

None

VerbinderApp Calendar

No in-app purchases

None

Modbus Viewer

No in-app purchases

Questions

Is VerbinderApp Calendar free?
VerbinderApp Calendar is free to download, with no in-app purchases.
Is Modbus Viewer free?
Modbus Viewer is free to download, with no in-app purchases.
Do VerbinderApp Calendar or Modbus Viewer have ads?
Neither VerbinderApp Calendar nor Modbus Viewer shows ads.
Which is updated more often, VerbinderApp Calendar or Modbus Viewer?
VerbinderApp Calendar ships an update fortnightly, and Modbus Viewer every 2 days. Most recently, VerbinderApp Calendar was updated on October 25, 2026 and Modbus Viewer on October 28, 2026.

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