Comparison

OpenCone vs Tmux Bridge

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

Tmux Bridge

Features
Read full description

Tmux Bridge is a phone-native window into the tmux sessions running on your own Mac. Sign in with an email code, pair your laptop with a six-character code, and your iPhone becomes a real terminal — not a web shell, not a relay, not a hosted IDE. Your sessions never leave your tailnet. tmuxbridge talks directly to a small daemon running on your laptop over Tailscale, terminated with a real Let's Encrypt certificate. There is no middleman tmux server and no cloud terminal to compromise. FEATURES - Real xterm.js terminal embedded in the app - Multiple Macs, fan-out from one phone - Email-OTP sign-in with self-issued, short-lived tokens - Six-character pair codes; revoke a machine anytime from Settings - Mobile keyboard accessory: Esc, Tab, arrows, Ctrl-C, Ctrl-B - Auto-reconnecting WebSocket; survives bad cell signal REQUIREMENTS - A Mac you can install the tmux-bridge daemon on (one-line installer) - Tailscale installed and signed in on the phone AND the Mac - tmux installed on the Mac tmuxbridge is open source under the MIT license. The full source for the iOS app, the Mac daemon, and the backend is available on GitHub.

Screenshots

OpenCone4 screens
Tmux Bridge3 screens

Verdict

The call

The clearest difference is device support: Tmux Bridge at 3 against OpenCone's 1. Tmux Bridge also leads on iOS requirement (15.1 vs 17.6). On price, ads and in-app purchases 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.

Scorecard2 real differences · 7 level
OpenCone versus Tmux Bridge: the parameters behind the verdict, then further details
ParameterOpenConeTmux Bridge
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size4 MB28 MB
Age rating4+17+
DeveloperGunnar HostetlerSaad Omar Osman

In-app purchases

None

OpenCone

No in-app purchases

None

Tmux Bridge

No in-app purchases

Questions

Is OpenCone free?
OpenCone is free to download, with no in-app purchases.
Is Tmux Bridge free?
Tmux Bridge is free to download, with no in-app purchases.
Do OpenCone or Tmux Bridge have ads?
Neither OpenCone nor Tmux Bridge shows ads.

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