# Deck Help vs Whisper

The clearest difference is price: Whisper at Free against Deck Help's $2.99. Whisper also leads on update cadence (every 4 days vs every 4 months). Deck Help's advantage is device support (4 vs 1) and iOS requirement (10.0 vs 17.0). On ads and in-app purchases there is nothing between them.

Whisper is free to download; Deck Help costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Deck Help ships an update every 4 months, Whisper every 4 days. The most recent releases landed on September 24, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Deck Help | Whisper |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.8 (23 ratings)](https://appshunter.io/ios/app/deck-help/id1473798154/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 20 MB | 2 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [昱昕 陈](https://appshunter.io/developer/1400361655) |

## What reviewers say

### Deck Help

[App page](https://appshunter.io/ios/app/deck-help/id1473798154)

Calculate decking material needs, including timber lengths and set outs for bearers and joists. Supports various measurement units and decimal place preferences for precise calculations.

**Highlights:** Calculate bearer and joist lengths, Determine stump, bearer, joist, and board set outs, Supports mm, cm, inches, and feet, Select preferred decimal places, Accurately solve deck equations

**Features:** Vision Pro support

**In-app purchases:** none


### Whisper

[App page](https://appshunter.io/ios/app/whisper-text-encryption/id6737430843)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Deck Help free?

Deck Help costs $2.99, with no in-app purchases.

### Is Whisper free?

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

### Do Deck Help or Whisper have ads?

Neither Deck Help nor Whisper shows ads.

### Which is updated more often, Deck Help or Whisper?

Deck Help ships an update every 4 months, and Whisper every 4 days. Most recently, Deck Help was updated on September 24, 2026 and Whisper 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.*