O vs DDToolsPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O
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Some of the main features of the application are: • Calculator: easily define what the geometrical parameters for rock blasting should be. • Safety: Measure the ground vibration and acoustics levels of the blast site. • Data tables: Find out acceptable levels of vibration, glossary used in the explosive industry, linear charge of the explosive according to different diameters and desities of explosive and etc. • Products: Learn more about the range of solutions O-Pitblast can offer you to optimize your drilling and rock blasting solutions.
DDToolsPro
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This tool will help directional drillers and company men with day to day calculations for standard directional drilling and a segmented (survey) tool for curves! Terms of use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: O at Free against DDToolsPro's $9.99. O also leads on in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 2 months). DDToolsPro's advantage is ads (none vs shown) and chart position (#167 vs unranked). 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
O is free to download; DDToolsPro costs $9.99 up front. DDToolsPro sells 2 in-app purchases, starting at $12.99 per month. O asks for nothing beyond the download.
O ships an update every 2 weeks, DDToolsPro every 2 months. The most recent releases landed on October 18, 2026 and October 30, 2026 respectively.
| Parameter | O | DDToolsPro |
|---|---|---|
| Price | Free — better | $9.99 |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Best chart rank | — | #167 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 52 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | O-Pitblast, Lda. | Michael Blake |
In-app purchases
O
No in-app purchases
DDToolsPro
- DD Tools Pro Unlock - Monthly$12.991 Month
- DD Tools Pro Unlock - Annual$129.991 Year
