Synapse
Planning tool

Used iPhone inspection ROI calculator.

A simple planning tool for refurbishers and resellers. Enter your own numbers to see your estimated monthly return-risk exposure and inspection time on used iPhones.

How to use it

Estimate from your own figures.

This calculator does plain arithmetic on the numbers you enter. It surfaces your current exposure and time — it does not promise a saving. Use it to frame a decision, then dig into the specifics for your operation.

  1. 01

    Enter your numbers

    Add your monthly volume, average selling price, return rate, loss per return, and current testing time per device.

  2. 02

    Read your estimate

    The calculator recomputes live, showing your estimated monthly risk exposure and inspection time from your own figures.

  3. 03

    Plan from there

    Use the result to think about where a more consistent, certified inspection process could fit your operation.

How many used iPhones you move in a typical month.

Your typical sale price per device.

Share of sales that come back as a return or dispute.

What a single return or dispute typically costs you.

Minutes a technician spends inspecting one device today.

Your monthly estimate

Estimated monthly risk exposure
$1,008

120 devices × 6% return rate × $140 loss per return ≈ 7 returns.

Estimated monthly inspection time
24 hr

120 devices × 12 min per device.

Potential value of a more consistent, certified inspection process

A standardized 50-point check gives every device the same documented inspection and a verifiable certificate. Consider how a consistent process could affect the figures above for your own operation.

[OWNER: insert real benchmark once customer data exists]

Use this as a planning estimate, not a guarantee.

Where a certified inspection fits.

Returns and disputes often trace back to a problem that a documented inspection would have caught. Synapse runs a full 50-point hardware inspection on every device and issues a verifiable certificate buyers can check before they commit.

The numbers above are yours. Whether a more consistent process moves them is a question only your own data can answer — this tool is a starting point for that conversation.