Comparison

Tchap vs zigzag project

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

Head to head
About

Tchap

This secure messaging app is the official instant messenger for French public agents. It offers enhanced performance, individual and group chats, audio/video calls, file sharing, and cross-device synchronization for professional communication.

Highlights
  • Individual and group messaging
  • Audio and video calls
  • File and document sharing
  • Agent directory access
  • Cross-device synchronization
  • External contact invitations
Features
Read full description

Tchap est la messagerie instantanée officielle des agents publics français. Disponible sur mobile et ordinateur, cette nouvelle application offre une expérience plus fluide, des performances améliorées et de nouvelles fonctionnalités, tout en permettant de rester connecté en toutes circonstances et d’échanger en toute confidentialité. Fonctionnalités principales : • Échanger par messages individuels ou en groupe • Passer des appels audio et vidéo (nouveau) • Partager des fichiers et des documents • Accéder à l'annuaire des agents inscrits • Fil de discussion (nouveau) • Accès aux Espaces (nouveau) • Synchronisation sur plusieurs appareils (smartphone, tablette, ordinateur) • Invitation de contacts externes (partenaires, prestataires, usagers) dans vos échanges Tchap offre un environnement de communication fiable et sécurisé, adapté aux usages professionnels des agents publics. Tchap est réservé aux agents de l’Etat et aux personnes invitées dans une conversation professionnelle avec un agent de l’Etat.

About

zigzag project

Features
Read full description

ZigZag is an interactive map designed to help you develop and organize projects in a collaborative way. The app allows you to: Organize your friends into circles Share events within these circles Filter events by tags and timeline Manage user profiles with personal availability schedules With ZigZag, you can create and share original projects within your circles.

Screenshots

Tchap3 screens
zigzag project3 screens

Verdict

The call

The clearest difference is update cadence: zigzag project at weekly against Tchap's every 3 weeks. zigzag project also leads on iOS requirement (14.0 vs 18.5). 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

Tchap ships an update every 3 weeks, zigzag project weekly. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 6 level
Tchap versus zigzag project: the parameters behind the verdict, then further details
ParameterTchapzigzag project
PriceFreeFree
Positive reviews51.9% of reviews—
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.514.0 — better
Further details — not scored
Size367 MB37 MB
Age rating4+17+
DeveloperDINSICTheo Eiferman

In-app purchases

None

Tchap

No in-app purchases

None

zigzag project

No in-app purchases

Questions

Is Tchap free?
Tchap is free to download, with no in-app purchases.
Is zigzag project free?
zigzag project is free to download, with no in-app purchases.
Do Tchap or zigzag project have ads?
Neither Tchap nor zigzag project shows ads.
Which is updated more often, Tchap or zigzag project?
Tchap ships an update every 3 weeks, and zigzag project weekly. Most recently, Tchap was updated on October 21, 2026 and zigzag project on October 8, 2026.

Other comparisons