Comparison

OpenCone vs ADRs for AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

ADRs for AI

Features
Read full description

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

OpenCone4 screens
ADRs for AI4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 8 level
OpenCone versus ADRs for AI: the parameters behind the verdict, then further details
ParameterOpenConeADRs for AI
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size4 MB3 MB
Age rating4+4+
DeveloperGunnar HostetlerJeremie Lumbroso

In-app purchases

None

OpenCone

No in-app purchases

None

ADRs for AI

No in-app purchases

Questions

Is OpenCone free?
OpenCone is free to download, with no in-app purchases.
Is ADRs for AI free?
ADRs for AI is free to download, with no in-app purchases.
Do OpenCone or ADRs for AI have ads?
Neither OpenCone nor ADRs for AI shows ads.
Which is updated more often, OpenCone or ADRs for AI?
OpenCone ships an update every 4 months, and ADRs for AI daily. Most recently, OpenCone was updated on October 10, 2026 and ADRs for AI on October 29, 2026.

Other comparisons