Skip to main content
AIDiveForge AIDiveForge

Pyunto

FreemiumSelf-HostedAgentic

Most journaling apps treat AI as a search bar bolted on after the fact — you export, you query, you context-switch. Pyunto builds the agent directly into the diary thread as a member, so it reads, replies, and acts where the writing already happens.

Free tier: one agent or robot per account

Similar tools

Summary

The core workflow is a diary app — iPhone, Android, Mac, Windows — where an AI agent or robot holds its own account with its own encryption keys and posts replies in the same thread as the people. Decryption happens on your machine, not Pyunto's servers, which means the diary text never leaves your hardware unless your chosen model is a cloud API — and the docs are explicit that you need to disclose that to diary members. One agent process handles every diary it has been invited into, which scales cleanly for a coach with multiple clients. The ceiling appears when you need the agent to branch across multiple data sources or coordinate with external services beyond the diary thread: there is no API surface to wire those in, so teams hit that wall and start building custom SDK wrappers or move the orchestration logic elsewhere.

Bottom line: Pick Pyunto when your product is a structured relationship between one agent and one person's private thread — a coach, a tutor, a follow-up bot — and reconsider when your agent needs to call external APIs, branch on business logic, or operate outside the diary context.

Pricing Plans

Subscription
Free Tier
one agent or robot per account

Free

Free

Diary with one agent or robot per account

  • One agent or robot
  • End-to-end encryption
  • Mobile and desktop apps

Pyunto+

per month

Subscription per space adding one agent and one robot

  • Additional agent and robot per space
  • One subscriber covers all members

View full pricing on pyunto.com →

Pricing may have changed since last verified. Check the official site for current plans.

Find your fit

Before you choose Pyunto

More options in Lifestyle. Compare pricing, platforms, and features side by side.

Browse Lifestyle

Pros

  • Local decryption on hardware you control, so diary text never passes through Pyunto's servers — which means you can satisfy stricter data-residency requirements without a separate encryption layer.
  • One agent process serves every diary it is invited into, so a coach or tutor agent scales across multiple client threads without duplicating infrastructure.
  • MCP integration with twelve tools lets Claude Desktop read, search, and summarize diary entries without a persistent background process — so teams that want occasional access rather than always-on replies get a lighter integration path.
  • Plain-language robot instructions post a plan before acting and report each step with photos back into the diary thread, which means a human can review the sequence and catch problems before or after without needing a separate logging system.
  • Character and persona defined in a Markdown file you write, so swapping the agent's role from strength coach to language tutor is a file swap — not a rebuild.

Cons

  • There is no external API surface on Pyunto's side, so an agent that needs to pull data from a CRM, trigger a webhook, or write to a third-party system has nowhere to connect without building a custom wrapper around the SDK — at which point you are maintaining agent logic in two places.
  • Multi-step branching based on conditional business logic — reply differently if a user has logged three missed sessions versus one — lives entirely in your agent code and the persona Markdown file; there is no visual editor or rule builder, so teams that expected a no-code configuration layer find they are writing and debugging Python from the start.
  • If the diary members use older Pyunto spaces, end-to-end encryption does not apply — teams with strict compliance requirements either migrate all members to new spaces or accept the gap, and some will choose a purpose-built encrypted messaging platform with agent hooks instead.
  • Cloud-model usage sends diary entries to the model provider, and the vendor places disclosure responsibility on the developer running the agent — teams building consumer-facing products in regulated categories need their own consent flow, which Pyunto does not provide.

About

Platforms
iPhone, iPad, Mac, Android, Windows
API Available
No
Self-Hosted
Yes
Last Updated
September 30, 2026

Best For

Who it's for

  • Users wanting private AI-augmented journaling
  • Developers building custom agents or robots
  • Groups sharing encrypted diary threads with AI members

What it does well

  • Strength-coach agent replying to training logs
  • Language tutor or clinic follow-up agents
  • Robot executing instructions like locating sunlight and reporting with photos
  • MCP integration for Claude to search and summarize diary entries

Integrations

Claude (MCP)custom models via API or local LLM

Frequently Asked Questions

Is Pyunto free?
Pyunto offers a free option alongside paid upgrades. Check the current allowances and terms before choosing a plan.
Can I self-host Pyunto?
Yes. Pyunto supports self-hosting on your own infrastructure.
What platforms does Pyunto support?
Pyunto is available on: iPhone, iPad, Mac, Android, Windows.

Journaling apps often force users to export entries and switch contexts just to query an AI.

Pyunto places an AI agent or robot inside the same encrypted diary thread on iPhone, Android, Mac, and Windows. The agent holds its own account and keys; decryption stays on the user device, so diary text never reaches Pyunto servers unless a cloud model is chosen and disclosed to members. One agent process handles every diary it joins, which fits a coach serving multiple clients. The vendor states that MCP integration lets Claude Desktop read, search, and summarize entries without a persistent process.

Key limits

There is no external API on Pyunto’s side, so agents that must pull CRM data or trigger webhooks require a custom wrapper. Multi-step branching based on rules such as missed sessions lives entirely in the agent’s code and persona file; no visual editor exists.

Who it is for / who should skip it

Best for users who want private AI-augmented journaling, developers building custom agents, and groups sharing encrypted threads with AI members. Skip it if you need direct third-party integrations or a no-code rule builder. The free tier allows one agent per account; Pyunto+ raises member limits via subscription.

Share This Tool

Compare This Tool
Contribute

Related Listings

Education & LearningFreemium

Unihongo

The core loop is AI speaking practice across 48+ topic scenarios, with real-time corrections from a teacher persona you choose — strict…

VerifiedFreemium
View Unihongo
LifestyleFreemium

Achu.app

Point the camera, snap, and Spotter returns an AI-generated identification with context — historical background for landmarks, species info…

VerifiedFreemium
View Achu.app
Education & LearningFreemium

ReadAlly

ReadAlly is a freemium AI reading assistant aimed at language learners, students, and casual readers who want active comprehension support…

VerifiedFreemium
View ReadAlly