Keeper vs Series
Which Personalization AI tool is better in 2026?
Keeper
Fully automated AI matchmaking built to find your future spouse, not more swipes
Series
The first AI social network that lives entirely inside iMessage
Side-by-side
Series is the more established option (raised $5.1M); pricing is comparable on both sides.
| Metric | Keeper | Series |
|---|---|---|
| Taglinei | Fully automated AI matchmaking built to find your future spouse, not more swipes | The first AI social network that lives entirely inside iMessage |
| Foundedi | 2022🏆 | 2024 |
| HQi | New York, United States | New Haven, US |
| Employeesi | — | 1-10🏆 |
| Neuron scorei | 43 | 55🏆 |
| Total fundingi | $4M | $5.1M🏆 |
| Latest roundi | Pre-Seed | Pre-Seed · Apr 2026 |
| Valuationi | — | — |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed |
| Free plani | ✓ | ✓ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Keeper and Series.
| Capability | Keeper | Series |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✓ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Keeper
- More mature (2022)
🔵 Strengths of Series
- Has raised more capital ($5.1M vs $4M)
- Higher Neuron score (55 vs 43)
- Newer company (2024)
Which should you choose?
Choose Series if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Personalization tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Series if you want the most established option — it has raised $5.1M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Keeper vs Series — which is better?
It depends on your priority. Keeper is the leaner option; Series has broader feature depth. See the side-by-side table above.
Is Keeper cheaper than Series?
No — Series's cheapest paid plan is Free, while Keeper's is Free.
Do Keeper and Series offer free plans?
Keeper: Yes, has a free plan. Series: Yes, has a free plan.
Explore more AI Personalization tools
Contextual paths to related AI startups, deals and rankings.