# PROEFY vs JSON & CSV Converter

The clearest difference is in-app purchases: PROEFY at none against JSON & CSV Converter's 2. PROEFY also leads on iOS requirement (11.0 vs 15.1). JSON & CSV Converter's advantage is update cadence (every 2 days vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. JSON & CSV Converter sells 2 in-app purchases, starting at $2.99 per 7 days. PROEFY asks for nothing beyond the download.

PROEFY ships an update weekly, JSON & CSV Converter every 2 days. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PROEFY | JSON & CSV Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Size | 15 MB | 31 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Appelit B.V.](https://appshunter.io/developer/584413394) | [AlicSystems](https://appshunter.io/developer/1793437899) |

## What reviewers say

### PROEFY

[App page](https://appshunter.io/ios/app/proefy/id1483496598)

**Features:** macOS Compatibility

**In-app purchases:** none


### JSON & CSV Converter

[App page](https://appshunter.io/ios/app/json-and-csv-converter/id6756044431)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $2.99 | per 7 days |
| Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is PROEFY free?

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

### Is JSON & CSV Converter free?

JSON & CSV Converter is free to download, with in-app purchases available.

### Do PROEFY or JSON & CSV Converter have ads?

Neither PROEFY nor JSON & CSV Converter shows ads.

### Which is updated more often, PROEFY or JSON & CSV Converter?

PROEFY ships an update weekly, and JSON & CSV Converter every 2 days. Most recently, PROEFY was updated on October 4, 2026 and JSON & CSV Converter on October 9, 2026.

---

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