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Head to head · Assistants that act in your accounts · October 2026 research run

Gemini Spark vs Tomo

Gemini Spark scores 24.5 (F) on agent readiness against Tomo's 13.1 (F), and leads in 4 of 7 scored categories. Tomo leads on maintenance & community. Both do assistants that act in your accounts.

Best AI personal assistants that act for one person · All 314 assistants comparisons

Gemini SparkGoogle LLC · Platform F24.5/100#978 of 993 TomoMapo Labs, Inc. · Platform F13.1/100#989 of 993

Which one, for what

Gemini Spark F

Best for A person who already keeps mail, calendar and files in a personal Google Account and accepts Keep Activity being on.

Ahead on

  • Schema & documentation, 17 against 0
  • Agent ergonomics, 9 against 0
  • Security & auth, 60 against 0

Watch for

No public API, SDK or MCP server for an outside agent was found. Spark is reached in the Gemini mobile app, the Mac app and gemini.google.com

Tomo F

Best for People who want accountability, check-ins and reminders by text, including in group chats.

Ahead on

  • Maintenance & community, 54 against 17

Watch for

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

Score by category

CategoryWeight this runGemini SparkTomoEdge
Reliability16%201415Tomo +1
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.2170Gemini Spark +17
Agent ergonomics13%16.290Gemini Spark +9
Security & auth14%17.5600Gemini Spark +60
Payments & pricing10%12.51010even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.81754Tomo +37
Transparency & trust7%8.84947Gemini Spark +2
Negative events≤1500
TotalF 24.5/100F 13.1/100

Facts side by side

FactGemini SparkTomo
KindPlatformPlatform
VendorGoogle LLCMapo Labs, Inc.
Hosted endpointno (local only)no (local only)
Transports
AuthOAuthOAuth or key
PricingPaidPaid
x402nono
LicenceProprietary hosted service under the Google Terms of ServiceClosed service under Tomo's Terms of Service (Mapo Labs, Inc., last updated 24 September 2026).
Read-only variant documentednono
llms.txtnono
Last release2026-05-192026-09-29
Terms last updated2026-07-30
Privacy policy last updated2026-09-24
Customer content may train modelsyes, with an opt-out
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text

Verdicts

Gemini Spark

Google's help pages state what Spark confirms before doing, how to delete its remote browser and code data, and the risks of prompt injection. Spark has no public API, Google calls it experimental, and it runs only with Keep Activity on, the setting under which chats are used for model training and human review.

Tomo

Tomo is a hosted personal AI over iMessage and an iOS app, centred on goals, check-ins and reminders, with regular iOS releases since April 2026. No outside agent can call it, there's no free plan, and no status page, security contact or subprocessor list was found.

Before you call either

Gemini Spark

  1. Do not plan an integration against Spark. No public API or MCP server was found, and a person must hold a Google AI Pro or Ultra subscription
  2. Expect a confirmation request before sends, edits, purchases and web form submissions, and note that bulk changes to private Google Tasks run without one
  3. Delete remote browser data and remote code execution data in Gemini Spark Settings after a sensitive session. Deleting a task thread or Gemini Apps activity does not remove them
  4. Keep within 15 running tasks and 50 active schedules. A schedule does not run when 15 tasks are running or the usage limit is reached
  5. Treat every safety statement here as Google's own description. None was tested, and no message was sent to the service

Tomo

  1. Don't plan to call Tomo from another agent. It answers only the owner's iMessage, group chats it's added to and the iOS app.
  2. Tell the owner that adding Tomo to a group chat applies its terms to every participant.

Questions

Which is better for AI agents, Gemini Spark or Tomo?

Gemini Spark scores 24.5 (F) on agent readiness against Tomo's 13.1 (F), and leads in 4 of 7 scored categories. Tomo leads on maintenance & community.

Other comparisons with Gemini Spark or Tomo

Disclosure

Tomo 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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