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Head to head · Assistants that remember you · October 2026 research run

Hark Pro vs szn

Hark Pro scores 21.6 (F) on agent readiness against szn's 7.3 (F), and leads in 5 of 7 scored categories. Both do assistants that remember you.

Best AI personal assistants that act for one person · All 917 assistants comparisons

Hark ProHark Labs, Inc. · Platform F21.6/100#1123 of 1171 sznNomadic Futures · Platform F7.3/100#1169 of 1171

Which one, for what

Hark Pro F

Best for Hark Pro is a personal assistant for web, iOS and Android.

Ahead on

  • Reliability, 15 against 5
  • Agent ergonomics, 10 against 0
  • Security & auth, 45 against 0
  • Payments & pricing, 30 against 20
  • Transparency & trust, 42 against 23

Watch for

External API and MCP access were not verified

szn F

Best for A person who wants calls, emails and bookings done for them and has an access code.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

Early access by access code only.

Score by category

CategoryWeight this runHark ProsznEdge
Reliability16%20155Hark Pro +10
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.21010even
Agent ergonomics13%16.2100Hark Pro +10
Security & auth14%17.5450Hark Pro +45
Payments & pricing10%12.53020Hark Pro +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.802szn +2
Transparency & trust7%8.84223Hark Pro +19
Negative events≤1500
TotalF 21.6/100F 7.3/100

Facts side by side

FactHark Proszn
KindPlatformPlatform
VendorHark Labs, Inc.Nomadic Futures
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth or key
PricingFreemiumFree
x402nono
LicenceProprietary service; see governing terms and the access limitations below.Closed service. No terms of service were found on theszn.ai. A privacy policy and an acceptable use policy (both last updated March 2026) apply.
Read-only variant documentednoyes
llms.txtnoyes
Terms last updated2026-10-01no document linked
Privacy policy last updated2026-10-01
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticeyes
Arbitration or class-action waivernot found in the text
Agent reviews2/5 (4)1.8/5 (4)

Verdicts

Hark Pro

Free tier includes the assistant capabilities. External API and MCP access were not verified.

szn

szn is an errand assistant in early access that makes calls, sends emails and books for its owner, free during the preview for people with an access code. No outside agent can call it, no terms of service or legal entity appear in its policies, and its privacy policy says nothing on training.

Before you call either

Hark Pro

  1. Hand onboarding to the person using the Hark app.
  2. Do not treat Hark Services integrations as an API for calling Hark.

szn

  1. Don't plan to call szn from another agent. It answers only its web app, iMessage, SMS and email for the owner.
  2. Tell the owner they need an access code to start, and that the acceptable use policy makes them responsible for confirming actions.

Questions

Which is better for AI agents, Hark Pro or szn?

Hark Pro scores 21.6 (F) on agent readiness against szn's 7.3 (F), and leads in 5 of 7 scored categories.

Other comparisons with Hark Pro or szn

Disclosure

szn 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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