# RETHLock vs FIBREVIEW

RETHLock and FIBREVIEW are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

RETHLock ships an update fortnightly, FIBREVIEW every 3 weeks. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | RETHLock | FIBREVIEW |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 59 MB | 159 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UEIHAUR ENTERPRISE CO.,LTD](https://appshunter.io/developer/1692135449) | [Chen Yu Hung](https://appshunter.io/developer/1598501198) |

## What reviewers say

### RETHLock

[App page](https://appshunter.io/ios/app/rethlock/id6450167757)

**In-app purchases:** none


### FIBREVIEW

[App page](https://appshunter.io/ios/app/fibreview/id6742233793)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RETHLock free?

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

### Is FIBREVIEW free?

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

### Do RETHLock or FIBREVIEW have ads?

Neither RETHLock nor FIBREVIEW shows ads.

### Which is updated more often, RETHLock or FIBREVIEW?

RETHLock ships an update fortnightly, and FIBREVIEW every 3 weeks. Most recently, RETHLock was updated on October 8, 2026 and FIBREVIEW 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.*