# Shopping Discount vs Metric Conversion tool

The clearest difference is price: Metric Conversion tool at Free against Shopping Discount's $0.99. Metric Conversion tool also leads on update cadence (fortnightly vs every 34 months). Shopping Discount's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Metric Conversion tool is free to download; Shopping Discount costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Shopping Discount ships an update every 34 months, Metric Conversion tool fortnightly. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Shopping Discount | Metric Conversion tool |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.8 (15K ratings)](https://appshunter.io/ios/app/metric-conversion-tool/id1439430070/reviews)** |
| Number of ratings | — | **15K** |
| Positive reviews | — | 69.2% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 34 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 16 MB | 57 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dietmar Herbert Schwarz Webers](https://appshunter.io/developer/1714893762) | [Wight Hat](https://appshunter.io/developer/1425885740) |

## What reviewers say

### Shopping Discount

[App page](https://appshunter.io/ios/app/shopping-discount/id661257628)

**Features:** macOS Compatibility

**In-app purchases:** none


### Metric Conversion tool

[App page](https://appshunter.io/ios/app/metric-conversion-tool/id1439430070)

This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.

**Highlights:** Offline functionality, Over 30,000 unit conversions, 160+ currencies with live rates, Save favorite conversions, Answers in fractions, Up to 5 decimal places

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Useful conversion tool
- 👍 Easy to use and navigate
- 🚀 Quick and efficient
- 👍 Comprehensive coverage of conversions

**What reviewers complain about**

- 🔊 Intrusive and loud ads
- 🔒 Questionable privacy practices
- 🐛 Inaccurate conversions
- 👎 Disruptive to workflow

**Reported bugs**

- Temperature conversion displaying incorrect values
- Ads triggering false memory full warnings

**Requested features**

- Paid version to remove ads
- Option to display results in preferred format
- Speed conversion (mph, km/h, etc.)


## Frequently asked questions

### Is Shopping Discount free?

Shopping Discount costs $0.99, with no in-app purchases.

### Is Metric Conversion tool free?

Metric Conversion tool is free to download, with no in-app purchases.

### Do Shopping Discount or Metric Conversion tool have ads?

Metric Conversion tool shows ads; Shopping Discount does not.

### Which is updated more often, Shopping Discount or Metric Conversion tool?

Shopping Discount ships an update every 34 months, and Metric Conversion tool fortnightly. Most recently, Shopping Discount was updated on November 1, 2026 and Metric Conversion tool on November 9, 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.*