Developer Tools vs OpenCone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Developer Tools
This app consolidates over 30 essential developer utilities into a single, offline application. It provides tools for formatting, encoding, decoding, generating data, and testing code snippets without needing an internet connection. Enjoy a privacy-first approach with a one-time purchase and extensive customization options.
- Over 30 offline developer tools
- JSON formatter and converter
- Base64 encoder/decoder
- Fake data generator
- Regular expression evaluator
- REST API client
- Customizable themes and highlighting
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Exabox puts over 30 essential developer utilities in a single offline app. Stop searching for random websites every time you need to format JSON, decode Base64, generate dummy data, or test a regular expression. AVAILABLE TOOLS: • Backslash Escaper/Unescaper • Base64 Encoder/Decoder • Color Formats Converter • Cookie Builder • Cookie Parser • Date & Time Parser • Fake Data Generator • Hash Generator • Hexadecimal Encoder/Decoder • HTML Escaper/Unescaper • JSON Formatter • JSON/YAML/TOML/GSON Converter • JWT Token Parser • Math Expression Evaluator • Number Base Converter • QR Code Generator • Regular Expression Evaluator • REST API Client • Text Comparator • Text Inspector • Text Transformer • Timezone Comparator • URL Builder • URL Encoder/Decoder • URL Parser • UUID Parser & Generator BENEFITS: • Works 100% offline - your data stays on your device • Privacy-first approach with no data collection • One-time purchase, no subscriptions • 60+ app themes and 90+ code highlighting options • Instant tool search functionality Get all your dev tools in one secure, professional workspace.
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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Transform your iPhone and iPad into a self-contained RAG powerhouse. Import PDFs, Word docs, code, images, and text into a secure sandbox - extraction, embedding, and semantic search happen with zero lock-in. Point the app at your OpenAI and Pinecone credentials for a private knowledge base that streams grounded, citation-backed answers in real time. COMPLETE DOCUMENT PIPELINE • Multi-format extraction: PDF, DOCX, TXT, HTML, Markdown, JSON, CSV, and code • Apple Vision OCR for on-device image text recognition • MIME-aware chunking with configurable size and overlap • Security-scoped bookmarks preserve file access across launches • Deduplication by path, size, and timestamp fingerprinting • Live progress tracking with structured logs for every phase SEMANTIC SEARCH WITH STREAMING • One-tap queries embed prompts and run similarity search against Pinecone • Server-Sent Events deliver incremental answer deltas—no blocking spinners • Citations reference exact chunks with document names and source metadata • Metadata filters scope searches to specific documents or custom tags • Conversation memory keeps recent turns in context for coherent follow-ups GPT-5 REASONING MODEL SUPPORT • Choose between standard models (GPT-4o, GPT-4o mini) or GPT-5 • Dynamic controls: reasoning effort for GPT-5, temperature/top-p for others • Unified Responses API with conditional parameterization RESILIENCE & OBSERVABILITY • Pinecone health checks surface outages with dismissible banners • Circuit breaker prevents hammering unhealthy hosts • Watchdog timers catch stalled streams and trigger fallbacks • Per-search trace IDs and granular log levels make every stage inspectable • Error banners auto-dismiss after 8 seconds with user-friendly summaries SETTINGS & PRIVACY • Credentials in Keychain via SecureSettingsStore • Release guardrails prevent accidental key leaks • Model selection, chunk parameters, top-k defaults, metadata presets persist • Reset control wipes credentials and history without reinstalling • Guided onboarding validates API keys before unlocking main interface POLISHED SWIFTUI EXPERIENCE • Theme manager with alternate icons and dynamic color schemes • Reactive MVVM-S architecture decouples views from business logic • Async/await throughout keeps UI responsive during heavy operations • Design system components ensure consistency across all tabs Whether building surgical references, legal research corpora, or personal knowledge vaults, OpenCone delivers production-grade RAG without vendor dashboards or billing surprises.
Screenshots
Verdict
The clearest difference is rating: OpenCone at 5.0 against Developer Tools's 2.0. OpenCone also leads on in-app purchases (none vs 1). Developer Tools's advantage is update cadence (every 6 weeks vs every 5 months) and device support (4 vs 1). On price, ratings volume, ads and monetization model 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. Developer Tools sells 1 one-off in-app purchase. OpenCone asks for nothing beyond the download.
OpenCone holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Developer Tools ships an update every 6 weeks, OpenCone every 5 months. The most recent releases landed on August 6, 2026 and September 24, 2026 respectively.
| Parameter | Developer Tools | OpenCone |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 6 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 102 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Alberto Malagoli | Gunnar Hostetler |
Customer experience
Developer Tools
OpenCone
In-app purchases
Developer Tools
- Lifetime$4.99
OpenCone
No in-app purchases









