Dynamic Volumetric Method vs Offline Music ®
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dynamic Volumetric Method
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This app is designed for both iPhone and iPad. This application uses the basic calculations of the "Dynamic Volumetric" method to control oil wells after the occurrence of kick during drilling operations on floating units (semi-submersible platform and drill-ship). It is an useful tool to import data files to fill kill sheets from our apps: (Driling Hydraulics, Drilling Simulator, Kick Tolerance, LOT Simulator and Well Control Simulator) available for sale in our portfolio on the App Store. It is can be applied on the field and also help in the understanding of the "Dynamic Volumetric" method for well control. This app was developed based on existing spreadsheets. There is no comparison with any other software. Our goal was to create a low-cost application with the help of experts to share with drilling engineers, technicians, drillers, students and teachers of drilling engineering. There is no intention to replace the professional softwares. You can contribute with suggestions for improvements, correcting the translation to english, reporting bugs and spreading it to your friends. Thanks DISCLAIMER: These tools & materials are provided 'as is' without warranties of any kind, express or implied. Please verify the tools provided by this application by yourself before you use them. Ensure you understand the impact of using these tools. Any use you choose to make of these tools & materials is undertaken by you entirely at you own risk.
Offline Music ®
Discover and download music from independent artists. Save data by listening offline with a built-in player and playlist creation. Explore new tracks daily across various genres.
- Discover music by genre
- Download MP3s for offline listening
- Save data
- Offline music player
- Create playlists
- Daily new tracks
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> Browse thousands of songs. Discover new Music per Genre. Everyday new tracks. > Download your Music, Save Data & Listen Offline Forever Offline Music ® allows you to discover music by new independent artists. You can also download your favorite MP3 Music from the Clouds to be able to play offline. Features: - Browse per genre to discover great music (Hip Hop, Rock, Pop, Jazz...) - Download your favorites mp3 songs offline to save Data (via Dropbox, iCloud, Wi-Fi transfer) - Catalog with thousands of artists & constantly updated - Offline Music Player with visualization - Trendy design in all simplicity - Create Playlists Download today to enjoy a unique experience! Disclaimer: All the music available via the Explore tab has been created by independent artists. They have chosen to distribute their work through the brilliant platform Jamendo, which is the provider of the content. You can stream all music from the curated catalog without limit. But it is not possible to download that music. SUBSCRIPTION: We offer 2 auto-renewing subscriptions: - Length: weekly and monthly - Payment will be charged to iTunes Account at confirmation of purchase - You will be able to access the Premium features of the app for the duration of the subscription - Subscription automatically renews for the same price and duration period as the original period unless auto-renew is turned off at least 24-hours before the end of the current period - The account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen package. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase - No cancellation of the current subscription is allowed during the active subscription period - You may cancel a subscription during its free trial period via the subscription setting through your Apple account. This must be done 24 hours before the end of the subscription period to avoid being charged. Please visit https://support.apple.com/en-us/HT202039 for more information on how to proceed. - You may turn off the auto-renewal of your subscription via your Apple Account Settings. However, you are not able to cancel the current subscription during its active period - Any unused portion of a free-trial period will be forfeited when the user purchases a subscription. By using our app, you agree to our Terms of Use & Privacy Policy Terms: https://planecubes.com/terms/ Privacy: https://planecubes.com/privacy/
Screenshots
Verdict
The clearest difference is price: Offline Music ® at Free against Dynamic Volumetric Method's $19.99. Offline Music ® also leads on update cadence (every 2 months vs every 38 months). Dynamic Volumetric Method's advantage is in-app purchases (none vs 3) and ads (none vs shown). On 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
Offline Music ® is free to download; Dynamic Volumetric Method costs $19.99 up front. Offline Music ® sells 3 in-app purchases, starting at $3.99 per 7 days. Dynamic Volumetric Method asks for nothing beyond the download.
Dynamic Volumetric Method ships an update every 38 months, Offline Music ® every 2 months. The most recent releases landed on September 18, 2026 and October 27, 2026 respectively.
| Parameter | Dynamic Volumetric Method | Offline Music ® |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | — | 4.5 (3.5K ratings) — better |
| Positive reviews | — | 36.7% of reviews |
| Number of ratings | — | 3.5K — better |
| Update frequency | Every 38 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 17 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Carlos Moura | Plane Cubes |
Bugs and requests
Dynamic Volumetric Method
Not enough reviews yet to summarise bugs or requests.
Offline Music ®
Reported bugs
3 issues- Frequent app crashes
- Playlists not saving properly
- Playback issues and song skipping
Requested features
3 requests- Add search functionality
- Allow downloading of personal music files
- Offer free offline listening option
In-app purchases
Dynamic Volumetric Method
No in-app purchases
Offline Music ®
- START FREE TRIAL3 Days trial$3.997 Days
- PREMIUM MONTHLY3 Days trial$9.991 Month
- PREMIUM FOREVER$19.99
Questions
Is Dynamic Volumetric Method free?
Is Offline Music ® free?
Do Dynamic Volumetric Method or Offline Music ® have ads?
Which is updated more often, Dynamic Volumetric Method or Offline Music ®?
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