Giftable vs Caldera
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Giftable compared with Caldera
| Detail | 
Giftable | 
Caldera |
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| What it does | Interactive digital greeting cards with photos, voice notes and hidden surprises
| The social network for GitHub and Obsidian
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| Stage | Startup
| Not given
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| Founded | 2025
| Not given
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| Based in | PL
| Not given
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| Pricing model | Freemium
| Open source
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| Pricing | Basic cards: free to send as is. 1 giftable: €2.99. 3 giftables: €5.99. 5 giftables: €6.99. 10 giftables: €9.99. Giftable Mágico (photo game): €3.99. No subscription required; giftables never expire.
| Not given
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| Key features | - Interactive digital greeting cards
- Photo slides and editing
- Scratch-off reveals
- Tap-to-open surprises
- 30-second video reply from recipient
- Responses land in sender dashboard
- Share via link with no app required
- Password-protected hidden gifts
- Up to 20 photo and video cards per giftable
- Available in 10 languages
| - GitHub city visualization showing repos as buildings and districts
- Living profile with daily journal, activity score and streaks
- End-to-end encrypted private note sharing
- AI agent and coding activity visualization
- World map showing all members' cities and neighborhoods
- Asks and offers with gravity rewards
- Read-only GitHub integration with no code access
- Self-hosted profile export to static site
- Mobile support on iOS and Android
- Cryptographic identity key stored locally in vault
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| What makes it different | - No app or account needed - opens in any browser
- Free to build, basic cards free to send
- One-time payment per card with no subscription
- Recipients can send video replies
- 43 different format templates for various occasions
| - Free and open source with no telemetry
- Visualizes GitHub activity as a living city that updates automatically
- Privacy by default: nothing leaves your Obsidian vault unless you explicitly choose
- Sign up with just GitHub, no installation required
- Self-hosted option with open protocol
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | 30 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 0 | 7 |
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| Citation Flow (Majestic) | 14 | 26 |
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| Referring domains (Majestic) | 6 | 21 |
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4 details filled in for both companies.
More alternatives to Giftable More alternatives to Caldera