# ComBackups vs DualClock

The clearest difference is update cadence: DualClock at every 3 days against ComBackups's every 11 months. ComBackups's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

ComBackups ships an update every 11 months, DualClock every 3 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ComBackups | DualClock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/combackups/id1506232416/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 25 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Energy Technology and Control Limited](https://appshunter.io/developer/1506232205) | [manish bhujel](https://appshunter.io/developer/6788099888) |

## What reviewers say

### ComBackups

[App page](https://appshunter.io/ios/app/combackups/id1506232416)

Scan QR codes generated by an ETC combustion control system to retrieve backup commissioning data. The app stores and allows emailing of these backup files directly from your iPhone. Optionally, create spreadsheets of the data in your Google account.

**Highlights:** Scan QR codes for backup data, Retrieve commissioning data files (CBU), Store and email backup files, Create Google Sheets from data, View backup files within the app

**Features:** macOS Compatibility

**In-app purchases:** none


### DualClock

[App page](https://appshunter.io/ios/app/dualclock/id6788099886)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ComBackups free?

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

### Is DualClock free?

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

### Do ComBackups or DualClock have ads?

Neither ComBackups nor DualClock shows ads.

### Which is updated more often, ComBackups or DualClock?

ComBackups ships an update every 11 months, and DualClock every 3 days. Most recently, ComBackups was updated on October 24, 2026 and DualClock 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.*