# Per Gram Calculator vs Straits Laundry

The clearest difference is ads: Straits Laundry at none against Per Gram Calculator's shown. Straits Laundry also leads on update cadence (weekly vs every 11 months). Per Gram Calculator's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Per Gram Calculator ships an update every 11 months, Straits Laundry weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Per Gram Calculator | Straits Laundry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/per-gram-calculator/id1523612245/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 17 MB | 48 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kouji Yamauchi](https://appshunter.io/developer/1519365107) | [DC WEB SERVICES PRIVATE LIMITED](https://appshunter.io/developer/1027330033) |

## What reviewers say

### Per Gram Calculator

[App page](https://appshunter.io/ios/app/per-gram-calculator/id1523612245)

Easily compare the cost of multiple products by calculating their price per gram or weight per unit of currency. This free tool helps you determine the most economical option when shopping, even with different weights and prices. It supports flexible unit conversions for weight, length, and volume.

**Highlights:** Calculate price per gram, Calculate weight per yen, Compare multiple products, Flexible unit conversions (weight, length, volume), Automatic input field expansion, Exclude blank entries from comparison

**Features:** macOS Compatibility

**In-app purchases:** none


### Straits Laundry

[App page](https://appshunter.io/ios/app/straits-laundry/id6747348649)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Per Gram Calculator free?

Per Gram Calculator is free to download, with no in-app purchases.

### Is Straits Laundry free?

Straits Laundry is free to download, with no in-app purchases.

### Do Per Gram Calculator or Straits Laundry have ads?

Per Gram Calculator shows ads; Straits Laundry does not.

### Which is updated more often, Per Gram Calculator or Straits Laundry?

Per Gram Calculator ships an update every 11 months, and Straits Laundry weekly. Most recently, Per Gram Calculator was updated on October 30, 2026 and Straits Laundry on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*