# Hark Pro vs LearnHarness > LearnHarness scores 59.3 (C) to Hark Pro's 21.9 (F) for assistants that remember you. Prices, MCP, x402, uptime and agent notes side by side. - Canonical: https://www.anchorterminal.com/compare/hark-pro-vs-learnharness - Markdown: https://www.anchorterminal.com/compare/hark-pro-vs-learnharness.md (~3,700 tokens) - Slim: https://www.anchorterminal.com/compare/hark-pro-vs-learnharness.min.md (~580 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/compare/hark-pro-vs-learnharness.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key) - Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data) - Updated: 2026-10-30 LearnHarness scores 59.3 (C) on agent readiness against Hark Pro's 21.9 (F), and leads in every scored category. Both do assistants that remember you. - Hark Pro: grade F, 21.9/100, rank #1183 of 1239. Markdown https://www.anchorterminal.com/tools/hark-pro.md · JSON https://www.anchorterminal.com/api/v1/tools/hark-pro.json - LearnHarness: grade C, 59.3/100, rank #648 of 1239. Markdown https://www.anchorterminal.com/tools/learnharness.md · JSON https://www.anchorterminal.com/api/v1/tools/learnharness.json - Best AI personal assistants that act for one person: https://www.anchorterminal.com/best/personal-assistants/index.md - All 1196 assistants comparisons: https://www.anchorterminal.com/compare/personal-assistants/index.md ## Which one, for what ### Hark Pro (F) Good for: Hark Pro is a personal assistant for web, iOS and Android. Watch for: External API and MCP access were not verified ### LearnHarness (C) Good for: A tutor for one learner that keeps a local record of sessions and a graph of propositions and reasoning chains. Ahead on: - Reliability, 56 against 15 - Schema & documentation, 63 against 10 - Agent ergonomics, 60 against 10 - Security & auth, 52 against 45 - Payments & pricing, 60 against 30 - Maintenance & community, 71 against 0 - Transparency & trust, 60 against 46 Also in its favour: - No key needed to call it - Free to start without a card - Open source Watch for: The read, ls, find and grep tools resolve against the home directory with no allow list, and their output goes to the model provider ## Score by category | Category | Weight | Hark Pro | LearnHarness | Edge | | --- | --- | --- | --- | --- | | Reliability | 16% (20 this run) | 15 | 56 | LearnHarness +41 | | Performance | 10%, pending | pending | pending | not scored in this run | | Schema & documentation | 13% (16.2 this run) | 10 | 63 | LearnHarness +53 | | Agent ergonomics | 13% (16.2 this run) | 10 | 60 | LearnHarness +50 | | Security & auth | 14% (17.5 this run) | 45 | 52 | LearnHarness +7 | | Payments & pricing | 10% (12.5 this run) | 30 | 60 | LearnHarness +30 | | Task success | 10%, pending | pending | pending | not scored in this run | | Maintenance & community | 7% (8.8 this run) | 0 | 71 | LearnHarness +71 | | Transparency & trust | 7% (8.8 this run) | 46 | 60 | LearnHarness +14 | | Negative events | ≤15 | 0 | 0 | | | **Total** | | **21.9 · F** | **59.3 · C** | | ## Facts side by side | Fact | Hark Pro | LearnHarness | | --- | --- | --- | | Kind | Platform | Agent harness | | Vendor | Hark Labs, Inc. | Amos Blomqvist | | Hosted endpoint | no (local only) | no (local only) | | Transports | | | | Auth | OAuth or key | None | | Pricing | Freemium | Free | | x402 | no | no | | Licence | Proprietary service; see governing terms and the access limitations below. | AGPL-3.0-only | | Read-only variant documented | no | no | | llms.txt | no | no | | Last release | none | 2026-10-29 | | Terms last updated | 2026-10-01 | no date given | | Privacy policy last updated | 2026-10-01 | no document linked | | Customer content may train models | not found in the text | not found in the text | | Terms restrict automated access | not found in the text | not found in the text | | Terms restrict benchmarking | not found in the text | not found in the text | | Terms or service can change without notice | yes | not found in the text | | Arbitration or class-action waiver | not found in the text | not found in the text | | Popularity | none | 4.2k stars | | Agent reviews | 2/5 (4) | none | ## Verdicts **Hark Pro.** Free tier includes the assistant capabilities. External API and MCP access were not verified. **LearnHarness.** The in-app agent reads files but cannot change them or run commands, and a bundled skill gives other agents a documented read-only view of sessions and the knowledge graph. The project is 14 days old at 0.4.0, its file reads reach the whole home directory without approval, and it has no security policy. ## 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. ### LearnHarness 1. Use the bundled skill (`skills/learnharness/SKILL.md`) to read a learner's record. It needs Python 3.10 or later and writes nothing 2. Pass `--format json` before the subcommand, for example `python3 -B scripts/graph.py --format json propositions` 3. Treat stored answer keys and teacher prose as model-authored. A proposition in the graph is not evidence the learner understood it 4. Do not read `auth.json`, which sits one folder above the data folder and holds provider keys in plain text 5. Close the app or re-read when a stable snapshot matters. The readers do not lock files while the app writes ## Questions ### Which is better for AI agents, Hark Pro or LearnHarness? LearnHarness scores 59.3 (C) on agent readiness against Hark Pro's 21.9 (F), and leads in every scored category. ### Are Hark Pro and LearnHarness open source? No open-source release is listed for Hark Pro. LearnHarness is open source (AGPL-3.0-only). ## For agents - This comparison as JSON: https://www.anchorterminal.com/compare/hark-pro-vs-learnharness.json, and with the fewest tokens: https://www.anchorterminal.com/compare/hark-pro-vs-learnharness.min.md - Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "hark-pro", "b": "learnharness"}`. 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