# 24onoff vs Duett

The clearest difference is update cadence: Duett at every 9 days against 24onoff's every 5 months. 24onoff's advantage is iOS requirement (8.0 vs 15.0). 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.

24onoff ships an update every 5 months, Duett every 9 days. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 24onoff | Duett |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 1 MB | 58 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Svenn AS](https://appshunter.io/developer/886710428) | [Duett AS](https://appshunter.io/developer/1084993667) |

## What reviewers say

### 24onoff

[App page](https://appshunter.io/ios/app/24onoff-2016-old-version/id535086753)

**Features:** macOS Compatibility

**In-app purchases:** none


### Duett

[App page](https://appshunter.io/ios/app/duett/id1500550863)

Manage your business finances with ease. Track income, send invoices, pay bills, and handle receipts all from your mobile device. Collaborate seamlessly with your accountant for streamlined bookkeeping.

**Highlights:** Financial overview, Invoicing and reminders, Bill payment, Receipt management with OCR, Document flow, Time tracking, Expense reporting, Leave and absence management

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 24onoff free?

24onoff is free to download, with no in-app purchases.

### Is Duett free?

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

### Do 24onoff or Duett have ads?

Neither 24onoff nor Duett shows ads.

### Which is updated more often, 24onoff or Duett?

24onoff ships an update every 5 months, and Duett every 9 days. Most recently, 24onoff was updated on September 28, 2026 and Duett on September 15, 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.*