Comparison

GestionDiag vs Happier

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

Head to head
About

GestionDiag

Streamline your real estate diagnostic practice with an integrated platform. Manage appointments, client payments, reports, and automated invoicing. Digitalize your business to save time and focus on your expertise.

Highlights
  • Appointment management
  • Client payment tracking
  • Automated invoice generation
  • Report sending
  • Client follow-up management
  • Digital business operations
Features
Read full description

-Pour les Diagnostiqueurs "GestionDiag, votre partenaire clé pour une pratique optimale du métier de diagnostiqueur immobilier. GestionDiag vous offre un environnement de travail simplifié, rapide et intégré. Plus besoin de jongler entre plusieurs outils pour suivre vos rendez-vous, vérifier les règlements de vos clients, envoyer des rapports ou gérer des relances. Tout est à portée de clic. En bonus, notre technologie innovante et adaptée à votre métier vous permet d'automatiser la génération de factures et d'ERP, de systématiser les relances et de digitaliser l'ensemble de votre activité. Libérez vos soirées et week-ends, consacrez votre temps à ce qui compte vraiment : votre expertise sur le terrain et le développement de votre entreprise. Avec GestionDiag, l'administratif devient un jeu d'enfant, et votre profession, une passion redécouverte. Rejoignez GestionDiag et faites partie de la #TeamGD pour vivre l'expérience d'un diagnostiqueur 2.0." -Pour les Professionnels de l'Immobilier "Pour vous, professionnels de l'immobilier, GestionDiag est plus qu'un simple outil de gestion de diagnostics. C'est une véritable plateforme intégrée, pensée pour faciliter votre quotidien et optimiser votre activité. Avec l'appui d'un technicien licencié GD, vous bénéficiez d'un compte personnalisé qui centralise tous vos rapports de diagnostics et facilite vos prises de rendez-vous avec tarifs et informations pré-remplies. Vous avez également accès à vos factures, à vos renouvellements et à un service de réclamation efficace et réactif. Notre technologie avancée vous permet de gérer l'ensemble de vos dossiers en un seul lieu, simplifiant ainsi vos tâches administratives et vous laissant plus de temps pour ce qui compte vraiment : la relation avec vos clients et le développement de votre entreprise. Avec GestionDiag, embrassez une gestion optimale et digitalisée de vos diagnostics immobiliers. Faites partie de la #TeamGD, et redécouvrez le plaisir de travailler dans l'immobilier, libéré des contraintes administratives, tout en respectant la réglementation grâce à la licence GD."

About

Happier

This app acts as a secure bridge for AI coding agents, allowing you to run and continue sessions from your computer on your phone. It supports collaboration, reliable session resuming, and full history access with end-to-end encryption.

Highlights
  • Collaborative coding sessions
  • Support for multiple AI providers
  • Persistent and resumable sessions
  • Seamless switching between devices
  • End-to-end encryption
  • Infinite message history
Features
Read full description

Happier is an open-source, end-to-end encrypted companion app for AI coding agents: Claude Code, Codex, OpenCode, Cursor, Pi, Grok, Gemini, Copilot, Qwen, Kimi, Kilo, Kiro, Auggie. Run sessions on your computer, and continue them from your phone. Use our desktop app or web app, and truly start working from anywhere. YOUR EXISTING SESSIONS? ALREADY THERE. Open any Claude Code, Codex or OpenCode session running on your computer — live, from your phone. Nothing to migrate, nothing to learn. APPROVE FROM ANYWHERE Your agent asks to run a command and you get a push notification with Allow and Deny on it. Sessions waiting on a decision rise to a "Needs attention" group at the top of your list; everything still running gathers under "Working". REVIEW THE DIFF. SEND NOTES TO YOUR AGENTS. Browse every line your agent changed. Mark the exact lines you want addressed, choose which notes to send, and hand them straight back — same session, or a new one. EDITOR. GIT. TERMINAL. ONE TAP AWAY. Chat, files, Git and a live terminal, each its own tab. Open a file to read or edit it, review the diff, manage branches and open a pull request. YOU LOVE THE TERMINAL? WE DO TOO. If you want, you can keep running Claude Code, Codex or OpenCode in their native TUI. Happier mirrors them to every device, so you can follow along, send messages and approve permissions from anywhere — and switch between the terminal and Happier whenever you like. A COLLEAGUE YOU CAN TALK TO The voice assistant watches every running session. Brainstorm the next change, approve a permission or send a message, without picking up the phone. YOUR SESSIONS WORK AS A TEAM A session can start another session, send it messages and read its transcript — so a Claude session and a Codex session can split the work between them. Each one still runs its own subagents, on whichever backend you choose. USE THE SUBSCRIPTIONS YOU ALREADY PAY FOR Happier reuses the subscriptions and logins your existing CLIs already use — Claude, Codex, Cursor, Gemini, OpenCode. No new bill, no double billing, and Happier sells no AI of its own. POOL YOUR ACCOUNTS. KEEP THE SESSION GOING. Link accounts you own into a pool and watch usage and quota resets for every one of them in the app. Nothing switches until you build a pool — once you have, Claude Code and Codex sessions can change account without stopping, moving to whichever member has the most quota left, at most once a turn and never past a reset time the provider has published. OPEN SOURCE. END-TO-END ENCRYPTED. Your messages, prompts and session content are encrypted on your device before they reach a server: AES-256-GCM under a key drawn for that one session, sealed to an account key that is created on a device and never leaves your devices. The relay stores ciphertext and has nothing to open it with. Put the relay on your own hardware with one command — happier relay host install — or reach your computer over Tailscale and use no relay at all. FREE, AND MIT LICENSED The CLI, the mobile apps, the desktop app, the web app and the relay. No seat count, no trial, no feature gate. github.com/happier-dev/happier HOW TO START 1. On your computer: curl -fsSL https://happier.dev/install | bash (Windows: iwr https://happier.dev/install.ps1 -useb | iex) 2. Scan the QR code your terminal prints, with this app. 3. Start a session from the app, or run "happier claude" or "happier codex" in your terminal. REQUIRES A COMPUTER Happier is the client for agents running somewhere you control. It does not run an agent in the cloud, and your repository is never copied to us: the agent reads and writes files on the computer it runs on, and that computer stays the only full copy. Not affiliated with, or endorsed by, Anthropic, Google, GitHub or Cursor.

Screenshots

GestionDiag4 screens
Happier4 screens

Verdict

The call

The clearest difference is update cadence: Happier at every 5 weeks against GestionDiag's every 8 months. Happier also leads on chart position (#153 vs unranked). On price, review sentiment, ads and in-app purchases 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

GestionDiag ships an update every 8 months, Happier every 5 weeks. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 9 level
GestionDiag versus Happier: the parameters behind the verdict, then further details
ParameterGestionDiagHappier
PriceFreeFree
Rating—4.4 (10 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 8 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank—#153 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size23 MB151 MB
Age rating4+4+
DeveloperGestiondiagLeeroy Brun

Customer experience

GestionDiag

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Happier

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GestionDiag

No in-app purchases

None

Happier

No in-app purchases

Questions

Is GestionDiag free?
GestionDiag is free to download, with no in-app purchases.
Is Happier free?
Happier is free to download, with no in-app purchases.
Do GestionDiag or Happier have ads?
Neither GestionDiag nor Happier shows ads.
Which is updated more often, GestionDiag or Happier?
GestionDiag ships an update every 8 months, and Happier every 5 weeks. Most recently, GestionDiag was updated on October 8, 2026 and Happier on October 15, 2026.

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