Paddle Sandbox test environment · No real charges / Paddle Sandbox 测试环境 · 不会真实扣款
emdev4funEmbedded Doctor

Free download · 30-day trial from first successful run

Local embedded diagnostics with subscription-backed maintenance.

Analyze embedded logs and source code locally. Download first, try it for 30 days, then subscribe only if it fits your work.

Local analysismacOS · Windows · LinuxNo card for trial

Simple recurring plans

Starter, Plus, and Pro — monthly or annually

USD 19, 99, or 199 monthly; USD 190, 990, or 1990 annually. The current plans differ only by active-device allowance.

Starter19 monthly
190 annual
Plus99 monthly
990 annual
Pro199 monthly
1990 annual

Starter 2 devices · Plus 3 · Pro 5

How access works

Download, try, then subscribe

1. Download publicly

No account or payment is required, and downloading does not start the trial.

2. Evaluate for 30 days

The 30-day trial starts on the first successful run. No card is required.

3. Subscribe and activate

Paddle completes checkout and an authorization code activates the selected number of devices.

4. Manage billing

The subscription automatically renews until canceled. Use the Paddle customer portal to change payment details or cancel renewal.

Subscription basics

Clear renewal and access limits

Paid access follows the active subscription. These limits are the same across all three plans except for device count.

Renews until canceled

Manage payment details and cancel future renewal in the Paddle customer portal.

Up to 7 days offline

After a successful online check, the app can work offline for up to 7 days.

Tier-controlled devices

Starter supports 2 active devices, Plus 3, and Pro 5.

Payment recovery and cancellation

A failed payment has a recovery period of up to 7 days. Canceling stops future renewal; access continues only through the paid period.

Try the desktop app before choosing a subscription.

Installers are public. Paddle securely handles checkout, applicable tax, receipts, and subscription cancellation.