# Duo.Link vs OctaBilling

Duo.Link and OctaBilling 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.

Duo.Link ships an update every 10 days, OctaBilling fortnightly. The most recent releases landed on October 18, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Duo.Link | OctaBilling |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Size | 42 MB | 40 MB |
| Requires iOS | **13** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ali Javaid](https://appshunter.io/developer/1750635616) | [OCTA SOLUTIONS IHAB ALI AND HIS PARTNER](https://appshunter.io/developer/1463527346) |

## What reviewers say

### Duo.Link

[App page](https://appshunter.io/ios/app/duolink/id6504041613)

**In-app purchases:** none


### OctaBilling

[App page](https://appshunter.io/ios/app/octabilling/id6596770753)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Duo.Link free?

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

### Is OctaBilling free?

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

### Do Duo.Link or OctaBilling have ads?

Neither Duo.Link nor OctaBilling shows ads.

### Which is updated more often, Duo.Link or OctaBilling?

Duo.Link ships an update every 10 days, and OctaBilling fortnightly. Most recently, Duo.Link was updated on October 18, 2026 and OctaBilling on October 6, 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.*