Deck Help vs Whisper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Deck Help
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.
- 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
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Deck Help is the easiest way to calculate decking material requirements, timber lengths and associated values when building! Quickly find bearer and joist lengths, as well as stump, bearer, joist and board set outs for a given deck width and length. Features Include: - Accurately solve deck equations - Enter lengths in mm, cm, inches or feet - Select your preferred number of decimal places
Whisper
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Want to send some secrets to somebody? Whisper can help you! By encrypting with a specific key, Whisper can turn any text into Emojis. You can then send these Emojis any way you want. Without the corresponding key, your secrets can never be compromised. Whisper supports to create two kinds of keys: Random Secure Key and Passphrase Derived Key. Both kinds of keys can be shared with QR code. Whisper uses a hybrid 256-bit encryption algorithm, which is theoretically difficult to break. To learn more, just try it now!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Deck Help | Whisper |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.8 (23 ratings) — better | — |
| Positive reviews | 14.3% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 4 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 20 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Armchair Engineering | 昱昕 陈 |
In-app purchases
Deck Help
No in-app purchases
Whisper
No in-app purchases
