Comparison

SixtyForty vs Html Preview

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SixtyForty

This tool helps DIY investors track their portfolios and determine if rebalancing is necessary. It visualizes asset allocation errors and account volatility, allowing for manual data entry without account access. The free version supports one account, with a Pro upgrade available for multiple accounts.

Highlights
  • Asset allocation error summary
  • History plots for volatility
  • Rebalance with cash flows
  • Individual/multiple account rebalancing
  • Model portfolio with target allocations
  • Account group management
  • iCloud data backup
Features
Read full description

SixtyForty is a tool for do-it-yourself passive investors. Use it to check your investment portfolio and decide if rebalancing is needed. Features: * Rebalance summary shows asset allocation error * History plots to monitor asset and account volatility * Rebalance with cash flows in/out of account * Rebalance individual accounts or across multiple accounts * Model your portfolio with asset types and target allocations * Manage independent sets of accounts using account groups * Data backed up to iCloud SixtyForty was created to fill the gap between spreadsheets and online investment services. Spreadsheets, while flexible, can be fiddly and error prone. Online services, while convenient, require handing over the keys to your accounts, your data, your privacy and even your ability to make investment decisions. SixtyForty does not require access to your accounts - data is entered manually. SixtyForty calculates asset allocation errors based on your target portfolio. This can be used to determine what rebalancing trades are needed. History plots of past entries show volatility and performance of your accounts. SixtyForty is intended for knowledgeable do-it-yourself investors that understand the importance of asset allocation and the role of rebalancing. It is not a robo-advisor and does not provide investment advice. It won’t tell you how to structure your portfolio or when to make trades. That part - the fun part - is up to you, and likely the reason you decided to manage your own investments in the first place. The free version of SixtyForty is limited to a single account. For multiple accounts, please upgrade to SixtyForty Pro (in-app purchase). If you are interested in learning more about investing, check out https://sixtyfortyapp.com for some reading recommendations.

About

Html Preview

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
Read full description

Open any HTML file on your iPhone in seconds. Html Preview is the simplest way to view HTML files shared from any app. Whether it's a report from ChatGPT, a page saved from Safari, or an attachment from WeChat — just tap Share and preview it instantly. KEY FEATURES • Share Extension — Open HTML files directly from any app using the iOS Share Sheet • Instant Rendering — Pre-warmed WebView engine loads content with zero delay • History — Recent files with source app tracking (knows if it came from WeChat, ChatGPT, Mail, etc.) • Multiple Encodings — Supports UTF-8, Windows-1252, and ISO Latin-1 • Dark Mode — Beautiful warm UI that adapts to your system appearance • File Picker — Browse and open HTML files from the Files app • Privacy First — No ads, no analytics, no data collection. Everything stays on your device. PERFECT FOR • Viewing HTML reports generated by AI assistants (ChatGPT, Claude, Gemini) • Previewing web pages shared via messaging apps (WeChat, Telegram, WhatsApp) • Opening HTML email attachments • Checking HTML files from cloud storage (iCloud, Google Drive, Dropbox) • Developers previewing HTML mockups on mobile Html Preview supports .html, .htm, and .xhtml files.

Screenshots

SixtyForty4 screens
Html Preview3 screens

Verdict

The call

The clearest difference is price: SixtyForty at Free against Html Preview's $2.99. SixtyForty also leads on review sentiment (100% vs 88%). Html Preview's advantage is rating (4.7 vs 3.7) and in-app purchases (none vs 1). On ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

SixtyForty is free to download; Html Preview costs $2.99 up front. SixtyForty sells 1 one-off in-app purchase. Html Preview asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Html Preview holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 3 and 11 respectively. Written reviews complicate that: 100% of SixtyForty's written reviews are positive against 88% of Html Preview's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

SixtyForty ships an update every 2 weeks, Html Preview every 6 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard7 real differences · 3 level
SixtyForty versus Html Preview: the parameters behind the verdict, then further details
ParameterSixtyFortyHtml Preview
PriceFree — better$2.99
Rating3.7 (3 ratings)4.7 (11 ratings) — better
Positive reviews100.0% of reviews — better87.5% of reviews
Number of ratings311 — better
Update frequencyEvery 2 weeksEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size4 MB1 MB
Age rating4+4+
DeveloperGreg WildingCyberGame Limited

Customer experience

SixtyForty

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Html Preview

All ratings11 ratings
Positive90.9%
Neutral9.1%
Negative0.0%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

In-app purchases

1 purchases

SixtyForty

One-time1
  • SixtyForty Pro Version$3.99
None

Html Preview

No in-app purchases

Questions

Is SixtyForty free?
SixtyForty is free to download, with in-app purchases available.
Is Html Preview free?
Html Preview costs $2.99, with no in-app purchases.
Which has better reviews, SixtyForty or Html Preview?
Html Preview is rated higher. SixtyForty averages 3.7 out of 5 from 3 ratings, while Html Preview averages 4.7 from 11 ratings.
Do SixtyForty or Html Preview have ads?
Neither SixtyForty nor Html Preview shows ads.
Which is updated more often, SixtyForty or Html Preview?
SixtyForty ships an update every 2 weeks, and Html Preview every 6 days. Most recently, SixtyForty was updated on October 24, 2026 and Html Preview on October 25, 2026.

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