# KEYVOX Check vs RefuelCheck

The clearest difference is in-app purchases: KEYVOX Check at none against RefuelCheck's 1. KEYVOX Check also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.6). RefuelCheck's advantage is update cadence (every 9 days vs every 4 months). On price and ads there is nothing between them.

Both are free to download. RefuelCheck sells 1 one-off in-app purchase. KEYVOX Check asks for nothing beyond the download.

KEYVOX Check ships an update every 4 months, RefuelCheck every 9 days. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | KEYVOX Check | RefuelCheck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Size | 21 MB | 2 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Blockchain Lock Inc.](https://appshunter.io/developer/1445525151) | [Fazry Rachman Susanto](https://appshunter.io/developer/1827368574) |

## What reviewers say

### KEYVOX Check

[App page](https://appshunter.io/ios/app/keyvox-check-in/id1488436331)

**Features:** macOS Compatibility

**In-app purchases:** none


### RefuelCheck

[App page](https://appshunter.io/ios/app/refuelcheck/id6754218260)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $1.99 | one-time |


## Frequently asked questions

### Is KEYVOX Check free?

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

### Is RefuelCheck free?

RefuelCheck is free to download, with in-app purchases available.

### Do KEYVOX Check or RefuelCheck have ads?

Neither KEYVOX Check nor RefuelCheck shows ads.

### Which is updated more often, KEYVOX Check or RefuelCheck?

KEYVOX Check ships an update every 4 months, and RefuelCheck every 9 days. Most recently, KEYVOX Check was updated on October 7, 2026 and RefuelCheck on October 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.*