ChatGPT Apps vs Custom GPTs: Which is Better for Advertising? (2025)
ChatGPT Apps vs Custom GPTs for advertising - understand the differences and which to use for managing Google Ads, Meta Ads, and marketing.
OpenAI now offers two ways to extend ChatGPT: Apps (formerly Connectors) and Custom GPTs. Both can help with advertising, but they work very differently.
Quick answer: Use Apps when you need to connect to live data (like your actual ad accounts). Use Custom GPTs when you need specialized knowledge or workflows that don't require external connections.
Need to connect to your ad accounts? Adspirer is a ChatGPT App that connects to Google Ads, Meta Ads, and TikTok Ads.
The Key Difference
| Feature | ChatGPT Apps | Custom GPTs |
|---|---|---|
| Connection to external data | Yes - live data | No - static knowledge |
| Can take actions | Yes - create, modify, delete | No - advice only |
| Who creates them | Third-party developers | Anyone |
| Data freshness | Real-time | Training data + uploads |
What Are ChatGPT Apps?
ChatGPT Apps are integrations that connect ChatGPT to external services. They use MCP or OAuth to access your accounts in other platforms.
What Apps Can Do:
- Pull your actual campaign performance data
- Create new campaigns in your ad accounts
- Modify budgets, bids, and targeting
- Research keywords with real CPC/volume data
What Are Custom GPTs?
Custom GPTs are specialized versions of ChatGPT with custom instructions and knowledge.
What Custom GPTs Can Do:
- Provide specialized advice based on training
- Follow custom workflows and frameworks
- Reference uploaded documents and data
What Custom GPTs Can't Do:
- Access your actual ad account data
- Make changes to your campaigns
- Pull real-time performance metrics
When to Use Apps
Use Apps when you need live data access, account actions, or real-time research.
When to Use Custom GPTs
Use Custom GPTs when you need specialized expertise, creative assistance, or learning and education.
FAQ
Can a Custom GPT connect to Google Ads?
Only if it has "Actions" configured with API access. For reliable ad account access, use a dedicated App like Adspirer.
Which is better for agencies managing multiple clients?
Apps. You can connect multiple ad accounts and switch between them.
Conclusion
Use ChatGPT Apps when: You need live data from your ad accounts or want to create/modify campaigns.
Use Custom GPTs when: You need specialized strategic advice or creative workflows.
Ready to connect your ad accounts? Adspirer brings Google Ads, Meta Ads, and TikTok Ads into ChatGPT.