OpenCone vs ADRs for AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenCone
This app transforms your iPhone or iPad into a powerful RAG system. It allows you to import various document types for on-device extraction, embedding, and semantic search. Connect to your OpenAI and Pinecone accounts to build a private knowledge base for real-time, citation-backed answers.
- Multi-format document import (PDF, DOCX, TXT, code, etc.)
- On-device OCR for image text recognition
- Semantic search with streaming answers
- Real-time citations and metadata filtering
- Support for GPT-5 and other advanced models
- Secure credential management in Keychain
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OpenCone turns the documents on your iPhone into answers you can check. Bring your own OpenAI and Pinecone keys: OpenCone reads and splits your files on the phone, stores them in your own Pinecone index, and answers your questions with OpenAI, citing the passage behind each claim. ASK • Answers stream in as they're written, with headings, lists, tables and code. • Claims carry tags such as [S1]. Tap one to read the exact passage, with its file, page and score. • Follow-up questions see your earlier exchanges. • Ask by voice, with Apple's speech recognition. SEARCH ONE INDEX OR ALL OF THEM • Auto reads each question and searches the indexes and namespaces likely to hold the answer, up to five at once. Ask it to compare two and it searches both. • Everything searches every namespace of every index you include. • One index searches the index you pick, in one namespace or in each of them. • Questions are embedded with the model that built each index, so the indexes you already have work as they are. • Optional reranking with Pinecone's hosted rerankers. YOUR DOCUMENTS • Import PDFs, plain text, Markdown, RTF, HTML, JSON, XML, CSV, code and images. Text in images is recognized on the phone. • Choose the index and namespace for each upload, follow its progress, and see how long each step took: read, split, embed and store. • Create and delete indexes and namespaces, with the cloud, region and metric you choose. ANSWER SETTINGS THAT FOLLOW THE MODEL • Choose from the current GPT models, or enter any model ID your key can use. • Reasoning effort, answer length up to the model's maximum, detail, service tier, web search and code interpreter, each offered where the model supports it. • Add your own instructions to every answer. SEE EVERY API CALL • Settings lists every OpenAI and Pinecone endpoint OpenCone calls: what it's for, the settings that shape it, and how this session's requests went. PRIVATE BY DESIGN • Your keys stay in the iPhone's Keychain. • No account, no analytics, no ads, and no server in between: requests go straight from your iPhone to OpenAI and Pinecone. • Answers are requested with storage off, so OpenAI keeps no conversation between questions. • One reset removes your keys, your settings and what OpenCone learned about your indexes. OpenCone works with your own OpenAI API key and your own Pinecone API key and project. OpenAI and Pinecone bill their usage to your accounts.
ADRs for AI
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Your project's decisions — with their reasoning — in your pocket. Review open questions dossier by dossier: Each one arrives with the options considered, a recommendation, the rationale behind it, a stated confidence, and what would change the answer. Accept or Override with one tap — and your answer lands as a real commit in your repository. ADRs4AI is for people who build with AI collaborators and refuse to let the thinking evaporate. The method is simple: Decisions live as plain Markdown records in your repo, questions are first-class and findable, and every recommendation carries its reasoning. This app is the pocket half of that practice — for the questions that accumulate while you're away from your desk. WHAT IT DOES • Sign in with your GitHub token — it stays in your device's Keychain • Import a repository and see its open questions as reviewable dossiers • Read each recommendation with its full reasoning, not just a conclusion • Accept with one tap, or write your own answer — either lands as a commit • Works with any repository using the ADRs4AI record format WHAT IT DOESN'T DO • No server of ours — your device talks to GitHub, and nowhere else • No analytics, no tracking, no ads, no accounts • No lock-in: Everything is plain Markdown in your repo; delete the app tomorrow and your records are still yours, still readable Part of the ADRs4AI toolkit — a git-native methodology, VS Code extension, and starter template for durable human–AI collaboration. Start at adrs.systems.
Screenshots
Verdict
The clearest difference is update cadence: ADRs for AI at daily against OpenCone's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
OpenCone ships an update every 4 months, ADRs for AI daily. The most recent releases landed on October 10, 2026 and October 29, 2026 respectively.
| Parameter | OpenCone | ADRs for AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Gunnar Hostetler | Jeremie Lumbroso |
In-app purchases
OpenCone
No in-app purchases
ADRs for AI
No in-app purchases









