# TempoCalc vs Html Preview

The clearest difference is update cadence: TempoCalc at daily against Html Preview's every 6 days. TempoCalc also leads on price ($0.99 vs $2.99) and iOS requirement (15.1 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

TempoCalc costs $0.99 and Html Preview $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TempoCalc ships an update daily, Html Preview every 6 days. The most recent releases landed on September 15, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | TempoCalc | Html Preview |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | — | **[4.7 (11 ratings)](https://appshunter.io/ios/app/html-preview-web-file-viewer/id6760443436/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 6 days |
| Monetization | — | Paid |
| Size | 32 MB | 1 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Eric Cotrina](https://appshunter.io/developer/1862860496) | [CyberGame Limited](https://appshunter.io/developer/1778824442) |

## What reviewers say

### TempoCalc

[App page](https://appshunter.io/ios/app/tempocalc-bpm-to-ms/id6756794526)

**Features:** macOS Compatibility

**In-app purchases:** none


### Html Preview

[App page](https://appshunter.io/ios/app/html-preview-web-file-viewer/id6760443436)

Quickly view any HTML file on your iPhone or iPad. Share files from any app or browse your device to instantly render web pages, AI reports, or email attachments. Enjoy a private, ad-free experience with a history of your viewed files.

**Highlights:** Share Extension for instant previews, Zero-delay instant rendering, History with source app tracking, Support for multiple encodings, Dark Mode support, File picker for local browsing, Privacy-focused, no ads or analytics

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

**In-app purchases:** none


## Frequently asked questions

### Is TempoCalc free?

TempoCalc costs $0.99, with no in-app purchases.

### Is Html Preview free?

Html Preview costs $2.99, with no in-app purchases.

### Do TempoCalc or Html Preview have ads?

Neither TempoCalc nor Html Preview shows ads.

### Which is updated more often, TempoCalc or Html Preview?

TempoCalc ships an update daily, and Html Preview every 6 days. Most recently, TempoCalc was updated on September 15, 2026 and Html Preview on September 21, 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.*