# World Time Clock Master vs Storage Cleaner The clearest difference is monetization model: Storage Cleaner at free with in-app purchases against World Time Clock Master's subscription. World Time Clock Master's advantage is ads (none vs shown) and review sentiment (67% vs 38%). On price, update cadence, in-app purchases and device support there is nothing between them. Both are free to download. World Time Clock Master sells 10 in-app purchases, starting at $2.99 per month and Storage Cleaner sells 4 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters. World Time Clock Master holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 839 and 213 respectively. Written reviews point the same way: 67% of World Time Clock Master's written reviews are positive against 38% of Storage Cleaner's. World Time Clock Master ships an update fortnightly, Storage Cleaner every 2 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively. ## The numbers | Metric | World Time Clock Master | Storage Cleaner | | --- | --- | --- | | Price | Free | Free | | Rating | **[4.6 (839 ratings)](https://appshunter.io/ios/app/world-time-clock-master/id6448859727/reviews)** | [4.4 (213 ratings)](https://appshunter.io/ios/app/storage-cleaner/id6455376072/reviews) | | Number of ratings | **839** | 213 | | Positive reviews | **66.7% of reviews** | 38.5% of reviews | | In-app purchases | Yes | Yes | | Ads | **No** | Yes | | Update frequency | Fortnightly | **Every 2 weeks** | | Monetization | Subscription | **Free with in-app purchases** | | Size | 236 MB | 73 MB | | Requires iOS | 17.0 | 17.0 | | Devices | **iPhone, iPad, Vision Pro** | iPhone, iPad | | Age rating | 4+ | 4+ | | Developer | [Alex Komarov Inc.](https://appshunter.io/developer/364741805) | [Lilucat](https://appshunter.io/developer/1676061700) | ## What reviewers say ### World Time Clock Master [App page](https://appshunter.io/ios/app/world-time-clock-master/id6448859727) Effortlessly manage multiple time zones with this app. Convert times instantly, schedule events, and view global clocks at a glance with interactive widgets. Features atomic accuracy and a vast database of locations. **Highlights:** Multiple time zone display, Interactive time conversion, Event scheduling, Atomic time accuracy, Dynamic home screen widgets, List mode for text view, Real moon phases and sunrise/sunset **Features:** Family Sharing **In-app purchases (10)** | Purchase | Price | Billing | | --- | --- | --- | | 1 month | $2.99 | per month | | 3 months | $3.99 | per 3 months | | 1 year | $11.99 | per year | | 1 year | $11.99 | per year | | 1 year | $11.99 | per year | | 1 year | $19.99 | per year | | Lifetime | $29.99 | one-time | | Lifetime | $49.99 | one-time | | Lifetime | $79.99 | one-time | | Lifetime | $99.99 | one-time | **What reviewers like** - 🚀 Delightful scheduling assistance - 👍 Feature improvement - 👍 The best Timezone helper - 👍 One of the best clocks around - 👍 The Widget is so damn cool! **What reviewers complain about** - 🐛 Problemas al actualizar - 🐛 Sticky signup interface - 🐛 Demo not enough - 🔒 NOT A FREE APP - 💰 Terrible monetisation model compared to previous app **Reported bugs** - Lose all the registered locations after updating the app - Sticky signup interface - Widget doesn't work - GMT and London currently have a 1 hour time difference between the two locations, but the app shows them the same time **Requested features** - Add the time difference in hours between the default location and other locations in both the widget and the app - See my calendar events on the dial - Make a paid tier that doesn't collect my data - Add new event to a Calendar ### Storage Cleaner [App page](https://appshunter.io/ios/app/storage-cleaner/id6455376072) Free up device space with intelligent tools that identify duplicate photos, blurry images, and screenshots. Easily manage videos and files from social media apps to reclaim storage. Enjoy a faster, more organized device with a simple, intuitive interface. **Highlights:** AI-powered photo cleanup, Duplicate and blurry photo detection, Screenshot and similar photo finder, Social media file cleanup, Quick video deletion, Swipe to delete functionality **Features:** Family Sharing **In-app purchases (4)** | Purchase | Price | Billing | | --- | --- | --- | | Storage Cleaner | $7.99 | per 7 days | | Phone Cleaner | $29.99 | per year | | Storage Cleaner | Free | one-time | | Storage Cleaner | $59.99 | one-time | **What reviewers like** - 🚀 Quick and easy to use - 👍 Helpful for managing storage - 🔒 Protects personal information **What reviewers complain about** - 🐛 Frequent crashes and bugs - 💤 Slow and unresponsive at times - 🔓 Requires full access to photos **Reported bugs** - Freezes when batch deleting - Unrealistic progress status - Fails to load or get started **Requested features** - Show dates on photos - Ability to delete more than 5 photos at a time - Improve duplicate detection accuracy ## Frequently asked questions ### Is World Time Clock Master free? World Time Clock Master is free to download, with in-app purchases available. ### Is Storage Cleaner free? Storage Cleaner is free to download, with in-app purchases available. ### Which has better reviews, World Time Clock Master or Storage Cleaner? World Time Clock Master is rated higher. World Time Clock Master averages 4.6 out of 5 from 839 ratings, while Storage Cleaner averages 4.4 from 213 ratings. ### Do World Time Clock Master or Storage Cleaner have ads? Storage Cleaner shows ads; World Time Clock Master does not. ### Which is updated more often, World Time Clock Master or Storage Cleaner? World Time Clock Master ships an update fortnightly, and Storage Cleaner every 2 weeks. Most recently, World Time Clock Master was updated on October 27, 2026 and Storage Cleaner on October 24, 2026. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*