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Head to head · Assistants reached by message · October 2026 research run

Caddy vs Zapia

Zapia and Caddy score within a point of each other on agent readiness, 17.3 (F) and 16.7 (F). Caddy leads on schema & documentation. Both do assistants reached by message.

Best AI personal assistants that act for one person · All 834 assistants comparisons

CaddyCaddy Technologies Inc. · Platform F16.7/100#996 of 1010 ZapiaBrainlogic AI S.A.S. · Platform F17.3/100#995 of 1010

Which one, for what

Caddy F

Best for People who want a free assistant in iMessage or RCS that watches mail, calendars and work tools and asks before acting.

Ahead on

  • Schema & documentation, 10 against 0

Watch for

No API, MCP server or A2A endpoint for an outside agent.

Zapia F

Best for Spanish- and Portuguese-speaking users who want an assistant over their mail, calendar, Drive and WhatsApp in an app.

Ahead on

  • Reliability, 15 against 10
  • Transparency & trust, 59 against 52

Watch for

No API, MCP server or A2A endpoint, and the terms forbid unauthorised automated connections.

Score by category

CategoryWeight this runCaddyZapiaEdge
Reliability16%201015Zapia +5
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.2100Caddy +10
Agent ergonomics13%16.200even
Security & auth14%17.503Zapia +3
Payments & pricing10%12.53030even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85556Zapia +1
Transparency & trust7%8.85259Zapia +7
Negative events≤1500
TotalF 16.7/100F 17.3/100

Facts side by side

FactCaddyZapia
KindPlatformPlatform
VendorCaddy Technologies Inc.Brainlogic AI S.A.S.
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth or key
PricingFreeFreemium
x402nono
LicenceClosed service under Caddy's Terms of Service (Caddy Technologies Inc., last updated 27 April 2026).Closed service under Zapia's terms and conditions (Brainlogic AI SAS). No date was found on the terms.
Read-only variant documentedyesno
llms.txtyesno
Last release2026-10-132026-10-12
Terms last updated
Privacy policy last updated
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver

Verdicts

Caddy

Caddy is a free iMessage and RCS assistant in public beta that watches connected mail, calendars and work apps and asks before sending email or changing data. No outside agent can call it, and no status page, changelog or security contact was found, though its iOS app ships every week or two.

Zapia

Zapia is a personal assistant app for iOS, Android and the web with a free plan that isn't a trial, weekly iOS releases and explicit confirmation before anything that writes. No outside agent can call it, and no status page, security contact or hosting location was found.

Before you call either

Caddy

  1. Don't plan to call Caddy from another agent. It answers the owner's text messages, Siri and group chats it's added to.
  2. Expect Caddy to ask the owner before it sends email or creates an invite.

Zapia

  1. Don't plan to call Zapia from another agent. It answers only in its own app and on the web, and the terms forbid unauthorised automated access.
  2. Tell the owner that Pro and Ultra trials become paid after 7 days unless cancelled in the app store.

Questions

Which is better for AI agents, Caddy or Zapia?

Zapia and Caddy score within a point of each other on agent readiness, 17.3 (F) and 16.7 (F). Caddy leads on schema & documentation.

Other comparisons with Caddy or Zapia

Disclosure

Caddy competes with LocalGhost, which Anchor Terminal's founder builds. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default.

Zapia competes with LocalGhost, which Anchor Terminal's founder builds. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default.

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