# HammerCap Auction Calculator — Buyer Premium Bid Ceiling

> Buyer Premium Bid Ceiling (iPhone/iPad app by Naman Mahendra.)

- Source: https://appshunter.io/ios/app/hammercap-auction-calculator/id6763710182 (this page in markdown: same URL + `.md`)
- Developer: [Naman Mahendra](https://appshunter.io/developer/1872122060)
- Category: Utilities, Lifestyle
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-04-27
- Data updated: 2026-06-03
- User reviews in markdown: https://appshunter.io/ios/app/hammercap-auction-calculator/id6763710182/reviews.md

## What is HammerCap Auction Calculator?

HammerCap is an auction bid calculator for collectors, design buyers, and advisors who need the real all-in ceiling before the paddle goes up.

Enter the lot estimate, your all-in budget, buyer premium, tax or VAT, shipping, insurance, care, framing, and optional FX. HammerCap calculates the maximum hammer bid that keeps the purchase inside your ceiling, then prepares a concise bid note you can copy or share.

Use HammerCap for art, antiques, design, watches, estate sales, and other collectible auctions where the final price can move quickly beyond the hammer.

Features:

- Maximum hammer bid from an all-in ceiling
- Buyer-premium presets for common auction categories
- Tax/VAT, shipping, insurance, care, framing, and FX inputs
- Low and high estimate all-in checks
- Copy/share bid note
- Local persistence on device
- No account, backend, tracking, ads, or subscription

HammerCap is a calculator only. Always verify auction-house terms, buyer premium, taxes, shipping, and currency assumptions before bidding. HammerCap does not provide tax, legal, appraisal, investment, or financial advice.


## Version history (last 1 release)

### 1.0 — 2026-04-27

No release notes.

## More apps by Naman Mahendra

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All apps by Naman Mahendra: https://appshunter.io/developer/1872122060

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*