KuCalc vs HTMLViewer Pro+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KuCalc
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It is a calculator with basic functions. We pursued ease of use with a minimum number of buttons. It has a history function. It can copy the results to clipboard.
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: KuCalc at Free against HTMLViewer Pro+'s $2.99. KuCalc also leads on update cadence (every 3 months vs every 17 months) and device support (3 vs 1). 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
KuCalc is free to download; HTMLViewer Pro+ costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
KuCalc ships an update every 3 months, HTMLViewer Pro+ every 17 months. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.
| Parameter | KuCalc | HTMLViewer Pro+ |
|---|---|---|
| Price | Free — better | $2.99 |
| Update frequency | Every 3 months — better | Every 17 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 17+ | 17+ |
| Developer | Mineaki Sakatoku | 倩 罗 |
In-app purchases
KuCalc
No in-app purchases
HTMLViewer Pro+
No in-app purchases
Questions
Is KuCalc free?
Is HTMLViewer Pro+ free?
Do KuCalc or HTMLViewer Pro+ have ads?
Which is updated more often, KuCalc or HTMLViewer Pro+?
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