Comparison

VerbinderApp Calendar vs TCHAK!

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

TCHAK!

Features
Read full description

● TCHAK, c'est l'app qui te permet de ne rien oublier. Tu prépares un déménagement ? Un voyage ? L'arrivée d'un bébé ? Un mariage ? TCHAK transforme ton projet en une checklist claire, étape par étape, pour que tu puisses avancer sereinement. Décris ce que tu prépares en une phrase. L'intelligence artificielle génère ta checklist personnalisée avec les bonnes étapes, dans le bon ordre, avec des rappels intelligents pour ne rien laisser passer. FONCTIONNALITÉS PRINCIPALES • Checklists IA — Décris ton projet, TCHAK génère la liste complète • Checklists prêtes à l'emploi — Déménagement, voyage, naissance, mariage, rentrée... des dizaines de modèles disponibles • Liste de courses — Compose ta liste par catégorie, rends-la récurrente pour la semaine prochaine • Partage en famille — Invite ta famille ou tes amis à cocher ensemble • Rappels intelligents — Notifications personnalisées pour chaque échéance • Thèmes — Personnalise l'app selon ton style (Kawaï, Jungle, Crayon, Cyber...) • Dictée vocale — Crée tes listes à la voix • Export PDF — Imprime ou partage tes checklists en un clic POURQUOI TCHAK ? Parce que la charge mentale, c'est réel. TCHAK prend le relais pour que tu puisses te concentrer sur l'essentiel : vivre tes projets au lieu de les organiser. Pas de pubs. Pas de tracking. Juste toi et tes projets. TCHAK — Dis-le. C'est fait. Conditions d'utilisation : https://tchak.app/terms Politique de confidentialité : https://tchak.app/privacy

Screenshots

VerbinderApp Calendar4 screens
TCHAK!4 screens

Verdict

The call

The clearest difference is in-app purchases: VerbinderApp Calendar at none against TCHAK!'s 2. TCHAK!'s advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price, update cadence and ads 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. TCHAK! sells 2 in-app purchases, starting at $2.99 per month. VerbinderApp Calendar asks for nothing beyond the download.

UpkeepUpdate frequency

VerbinderApp Calendar ships an update fortnightly, TCHAK! every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
VerbinderApp Calendar versus TCHAK!: the parameters behind the verdict, then further details
ParameterVerbinderApp CalendarTCHAK!
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size45 MB48 MB
Age rating4+9+
DeveloperVerbinderApp UG (haftungsbeschraenkt)Romain Pons

In-app purchases

None

VerbinderApp Calendar

No in-app purchases

2 purchases

TCHAK!

Subscriptions2
  • TCHAK - Full Monthly$2.991 Month
  • TCHAK Full Yearly$17.991 Year

Questions

Is VerbinderApp Calendar free?
VerbinderApp Calendar is free to download, with no in-app purchases.
Is TCHAK! free?
TCHAK! is free to download, with in-app purchases available.
Do VerbinderApp Calendar or TCHAK! have ads?
Neither VerbinderApp Calendar nor TCHAK! shows ads.
Which is updated more often, VerbinderApp Calendar or TCHAK!?
VerbinderApp Calendar ships an update fortnightly, and TCHAK! every 3 weeks. Most recently, VerbinderApp Calendar was updated on October 30, 2026 and TCHAK! on October 31, 2026.

Other comparisons