Comparison

SpacerMint 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

SpacerMint

This app helps you reclaim storage space on your iPhone by identifying and cleaning up duplicate, similar, and large files. It offers smart detection for photos, screenshots, videos, and messaging media, with all processing done on your device for privacy.

Highlights
  • Smart duplicate photo detection
  • Similar photo finder
  • Screenshot cleanup
  • Large file identification
  • Video compression
  • Messaging media cleanup
  • Storage insights and forecasting
Features
Read full description

SpacerMint helps you reclaim storage on your iPhone — privately, safely, and on your terms. Every scan runs entirely on your device. No cloud uploads, no accounts, no data leaves your phone. SpacerMint uses Apple Vision and smart metadata matching to surface what’s worth cleaning up, then puts you in full control of every decision. SMART DUPLICATE DETECTION Find exact and near-identical photos using AI-powered visual comparison combined with file size, GPS proximity, and timestamp matching. SIMILAR PHOTO FINDER Surface near-identical shots so you can keep the best and consolidate the rest. SCREENSHOT CLEANUP Identify old and stale screenshots cluttering your library. Review each one before deciding what stays and what goes. LARGE FILE FINDER Surface storage-hogging files so you can make informed decisions about what to keep. VIDEO COMPRESSION Reclaim space from large videos with adjustable quality tiers — slight, medium, or heavy compression. Originals are replaced in place. MESSAGING MEDIA CLEANUP Find media bloat from WhatsApp, Telegram, iMessage, and other messaging apps. STORAGE INSIGHTS Visual analytics showing storage trends over time, reclaimable estimates, and scan history. STORAGE FORECASTING Predict when your device will run low on space based on your usage patterns. SAFE BY DEFAULT Every cleanup action requires your explicit confirmation. Deleted items go to Recently Deleted for 30 days. SpacerMint never auto-deletes anything. FREE TIER Full scanning across all categories, unlimited cleanup for screenshots, recordings, downloads, and more. Capped categories show clear limits before you clean. SPACERMINT PREMIUM Unlimited duplicate, similar photo, and large file cleanup. Plus video compression and live photo conversion. Privacy Policy: https://spacermint.com/privacy Support: https://spacermint.com/support

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
Currently charting
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

SpacerMint4 screens
Html Preview3 screens

Verdict

The call

The clearest difference is price: SpacerMint at Free against Html Preview's $1.99. SpacerMint also leads on rating (5.0 vs 4.7) and review sentiment (100% vs 88%). Html Preview's advantage is in-app purchases (none vs 2) and chart position (#199 vs unranked). On update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

SpacerMint is free to download; Html Preview costs $1.99 up front. SpacerMint sells 2 in-app purchases, starting at $1.99 per month. Html Preview asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SpacerMint holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 11 respectively. Written reviews point the same way: 100% of SpacerMint's written reviews are positive against 88% of Html Preview's.

UpkeepUpdate frequency

SpacerMint ships an update every 5 days, Html Preview every 6 days. Both last shipped on November 5, 2026.

Scorecard8 real differences · 3 level
SpacerMint versus Html Preview: the parameters behind the verdict, then further details
ParameterSpacerMintHtml Preview
PriceFree — better$1.99
Rating5.0 (3 ratings) — better4.7 (11 ratings)
Positive reviews100.0% of reviews — better87.5% of reviews
Number of ratings311 — better
Update frequencyEvery 5 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
Best chart rank—#199 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size20 MB1 MB
Age rating4+4+
DeveloperEugene OhuCyberGame Limited

Customer experience

SpacerMint

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 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

2 purchases

SpacerMint

Subscriptions2
  • Premium Monthly$1.991 Month
  • Premium Yearly$14.991 Year
None

Html Preview

No in-app purchases

Questions

Is SpacerMint free?
SpacerMint is free to download, with in-app purchases available.
Is Html Preview free?
Html Preview costs $1.99, with no in-app purchases.
Which has better reviews, SpacerMint or Html Preview?
SpacerMint is rated higher. SpacerMint averages 5.0 out of 5 from 3 ratings, while Html Preview averages 4.7 from 11 ratings.
Do SpacerMint or Html Preview have ads?
Neither SpacerMint nor Html Preview shows ads.
Which is updated more often, SpacerMint or Html Preview?
SpacerMint ships an update every 5 days, and Html Preview every 6 days. Most recently, SpacerMint was updated on November 5, 2026 and Html Preview on November 5, 2026.

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