# Metric Converters vs Bostik FlexApp

The clearest difference is price: Bostik FlexApp at Free against Metric Converters's $0.99. Bostik FlexApp also leads on update cadence (every 3 days vs every 38 months) and iOS requirement (12.0 vs 14.1). On ads, in-app purchases and device support there is nothing between them.

Bostik FlexApp is free to download; Metric Converters costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Metric Converters ships an update every 38 months, Bostik FlexApp every 3 days. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Metric Converters | Bostik FlexApp |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 3 days** |
| Size | 20 MB | 47 MB |
| Requires iOS | 14.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +4 | 17+ |
| Developer | [H Valeur](https://appshunter.io/developer/621824042) | [Arkema Pte Ltd](https://appshunter.io/developer/1530794004) |

## What reviewers say

### Metric Converters

[App page](https://appshunter.io/ios/app/metric-converters/id1570182170)

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

**In-app purchases:** none


### Bostik FlexApp

[App page](https://appshunter.io/ios/app/bostik-flexapp/id1596007589)

**In-app purchases:** none


## Frequently asked questions

### Is Metric Converters free?

Metric Converters costs $0.99, with no in-app purchases.

### Is Bostik FlexApp free?

Bostik FlexApp is free to download, with no in-app purchases.

### Do Metric Converters or Bostik FlexApp have ads?

Neither Metric Converters nor Bostik FlexApp shows ads.

### Which is updated more often, Metric Converters or Bostik FlexApp?

Metric Converters ships an update every 38 months, and Bostik FlexApp every 3 days. Most recently, Metric Converters was updated on November 3, 2026 and Bostik FlexApp on October 27, 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.*