Overview
Woz (WOZCODE) and Rubber Duck are two specialized tools that address different stages of the software development lifecycle. Woz is a plugin for Claude Code that supercharges AI-assisted coding performance, speed, and cost efficiency. Rubber Duck is an iOS app testing service that catches issues before App Store submission, combining automated checks with human testers on real devices.
Feature Comparison
| Feature | Woz (WOZCODE) | Rubber Duck |
|---|---|---|
| Primary Function | Plugin for Claude Code that optimizes AI-assisted coding performance, speed, and cost. | Automated and human testing service for iOS apps before App Store submission. |
| Target Users | Developers using Claude Code for AI-assisted coding. | iOS developers and teams preparing apps for App Store review. |
| Performance Improvement | 25% better on TerminalBench 2.0, 2–3× faster task completion (up to 10× on database tasks). | N/A – focuses on catching issues, not performance benchmarks. |
| Cost Savings | 8–15% lower token usage and cost; claims $100/month savings. | N/A – pricing is per scan or subscription. |
| Testing Method | Not applicable – coding plugin. | Combines automated checks with human testers on real devices. |
| Integration | Works with Claude Code, VS Code, Cursor, and other tools. | Accepts App Store link or IPA upload; no direct IDE integration. |
| Report Output | Savings and performance metrics shown in terminal. | Actionable Duck Report with video replays of issues. |
| Privacy | Runs 100% on your machine; code and API keys never leave. | Encrypted IPA upload; secure environment. |
Pricing
Woz (WOZCODE)
- Free for individuals – no account needed.
- Claims $100/month in free Claude Code savings.
- Pricing for teams or enterprise not specified.
- Requires a Claude Code subscription (additional cost).
Rubber Duck
- Pre-Flight Scan: $19/scan – single use, perfect for one-off checks.
- Basic: $29/mo – 3 scans per month, real device testing, basic report.
- Pro: $49/mo – 10 scans per month, priority queue, detailed logs & video.
- Daily: $99/mo – once a day scan, nightly regression, private Slack support.
Pros and Cons
Woz (WOZCODE)
Pros:
- Significant performance boost for Claude Code (25% better benchmarks).
- 2–3× faster task completion, especially on database tasks.
- 8–15% lower token usage and cost.
- Runs locally – no data leaves your machine.
- Free for individuals with no account required.
Cons:
- Only works with Claude Code – limited to AI coding workflows.
- Requires Claude Code subscription (additional cost).
- No standalone functionality; purely a plugin.
- Limited to coding tasks; not for app testing or QA.
Rubber Duck
Pros:
- Catches App Store rejection issues before submission.
- Combines automated and human testing on real devices.
- Fast turnaround (~4 hours for most scans).
- Detailed reports with video replays of issues.
- Flexible pricing tiers for different release cycles.
Cons:
- Only supports iOS apps (no Android or web).
- Requires IPA upload or App Store link – no direct IDE integration.
- Subscription cost may add up for frequent scans.
- Limited to pre-submission testing; not for ongoing development.
Verdict
Woz and Rubber Duck serve entirely different purposes. Woz is ideal for developers who use Claude Code and want to maximize AI coding efficiency, speed, and cost savings. Rubber Duck is perfect for iOS developers who need to ensure their app passes App Store review without rejection. Choose Woz if you're focused on AI-assisted coding performance; choose Rubber Duck if you need pre-submission iOS app testing.
Rubber Duck
Woz