KeyCalc vs HTMLViewer Pro+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KeyCalc
This calculator app offers a fun, retro-style interface inspired by mechanical keyboards and vintage LED displays. It provides a simple and enjoyable user experience for everyday calculations.
- Retro calculator design
- Mechanical keyboard inspiration
- Vintage LED display aesthetic
- Simple and fun interface
- Basic calculation functions
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A fun and simple retro-style calculator. Inspired by mechanical keyboards and vintage LED displays.
HTMLViewer Pro+
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Offline HTML viewer and source-code reader with syntax highlighting. Open, inspect and edit any .html file on iPhone – even without an internet connection. KEY FEATURES - Instant import from Files, URL or manual input - 100% WebKit rendering (CSS3, ES6, SVG, Canvas) - Source view with coloured HTML, CSS and JS - Dark Mode for comfortable late-night reading - Smart file manager: folders, favourites, fast search - Privacy first: no ads, no analytics, all on-device USE CASES • Developers reviewing prototypes • Students learning web basics • Testers checking responsive layouts offline • Writers drafting blog posts in raw HTML • Anyone opening .html email attachments ROADMAP Upcoming 1.1 will add split-view preview, auto-refresh and local web-server mode.
Screenshots
Verdict
The clearest difference is price: KeyCalc at Free against HTMLViewer Pro+'s $2.99. HTMLViewer Pro+'s advantage is iOS requirement (16.6 vs 18.0). On ads, in-app purchases and device support 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
KeyCalc is free to download; HTMLViewer Pro+ costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | KeyCalc | HTMLViewer Pro+ |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 23 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Wayne Dahlberg | 倩 罗 |
In-app purchases
KeyCalc
No in-app purchases
HTMLViewer Pro+
No in-app purchases
Questions
Is KeyCalc free?
Is HTMLViewer Pro+ free?
Do KeyCalc or HTMLViewer Pro+ have ads?
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