# Duty BD vs DeckSync

The clearest difference is in-app purchases: Duty BD at none against DeckSync's 2. Duty BD also leads on update cadence (fortnightly vs every 6 weeks) and iOS requirement (13.0 vs 26.3). On price, ads and device support there is nothing between them.

Both are free to download. DeckSync sells 2 in-app purchases, starting at $9.99 per month. Duty BD asks for nothing beyond the download.

Duty BD ships an update fortnightly, DeckSync every 6 weeks. The most recent releases landed on October 27, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Duty BD | DeckSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/decksync-live-slide-sync/id6762010067/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 3 MB |
| Requires iOS | **13.0** | 26.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Easin Arafat](https://appshunter.io/developer/1690629309) | [Kevin Kojeski](https://appshunter.io/developer/1892439533) |

## What reviewers say

### Duty BD

[App page](https://appshunter.io/ios/app/duty-bd/id6449788435)

**Features:** macOS Compatibility

**In-app purchases:** none


### DeckSync

[App page](https://appshunter.io/ios/app/decksync-live-slide-sync/id6762010067)

Share PDF presentations to multiple nearby devices instantly without needing an internet connection or accounts. Secure your content with PIN protection and enjoy features like a laser pointer for viewers. Library management is always free.

**Highlights:** Sync slides to multiple devices, Works offline via Bluetooth/Wi-Fi, Import PDFs from various sources, PIN-protected sessions, Laser pointer and free browse mode, Dark mode support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $74.99 | per year |


## Frequently asked questions

### Is Duty BD free?

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

### Is DeckSync free?

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

### Do Duty BD or DeckSync have ads?

Neither Duty BD nor DeckSync shows ads.

### Which is updated more often, Duty BD or DeckSync?

Duty BD ships an update fortnightly, and DeckSync every 6 weeks. Most recently, Duty BD was updated on October 27, 2026 and DeckSync on November 5, 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.*