Room Key vs HEIFree
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Room Key
Unlock your door using your smartphone. This app eliminates the need for physical keycards or fobs, allowing you to simply present your phone to the lock for access.
- Unlock doors using smartphone
- Replaces keycards and fobs
- Simple phone-to-lock interaction
- Convenient access solution
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With Room Key, you can unlock your door with your phone. No more lost keycards or fobs. Just present your phone to the lock to open your door.
HEIFree
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HEIFree helps reclaim iPhone and iPad storage by converting existing JPG/PNG photos to HEIF and H.264 videos to HEVC, saving 40-60% storage in many cases while preserving visual quality. Unlike ordinary photo compressors that simply lower JPEG quality, HEIFree uses Apple's HEIF and HEVC support to re-encode media into more efficient formats. KEY FEATURES - Batch scan photos and videos in your library - Convert JPG/PNG photos to HEIF - Convert H.264 videos to HEVC - A/B preview comparison so you can check quality before converting - Adjustable quality slider for photo conversion - Optimized copies are saved separately by default - Optional original deletion only after your confirmation - Deleted originals go to Recently Deleted, where they can be recovered for 30 days - All photo and video processing happens on your device FREE TO TRY Your first 50 conversions are free. Unlock unlimited conversions with a one-time purchase - no subscription. PRIVACY FIRST HEIFree processes photos and videos locally on your device. Your photos and videos are not uploaded. No tracking. WHY HEIF? HEIF (High Efficiency Image Format) uses the same compression family as HEVC video. It can produce files 40-60% smaller than JPEG at similar visual quality. iPhones have used HEIF for new photos since 2017, but older photos, screenshots, and images saved from other apps may still be JPG and take more space than necessary.
Screenshots
Verdict
The clearest difference is in-app purchases: Room Key at none against HEIFree's 1. On price, 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
Both are free to download. HEIFree sells 1 one-off in-app purchase. Room Key asks for nothing beyond the download.
| Parameter | Room Key | HEIFree |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 4 MB | 24 MB |
| Age rating | 17+ | 4+ |
| Developer | Kohost LLC | Shanghai Daho Technology Co., Ltd. |
In-app purchases
Room Key
No in-app purchases
HEIFree
- HEIFree Pro$4.99









