BlasToolsPro vs SmartDirt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BlasToolsPro
This application provides over 100 formulas for blast pattern design, delay timing, volume calculations, and vibration prediction. It also includes conversion tools for various units of length, weight, velocity, area, pressure, and volume.
- Blast pattern design formulas
- Delay timing calculations
- Volume, weight, and powder factor calculations
- Angled hole analysis
- Pre-split design tools
- Decoupled charge calculations
- Wet hole and vibration prediction
- Extensive unit conversions
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BlasToolPro is a calculator/converter with more than 100 formulas to provide solutions for such topics as 1. Blast Pattern Design 1.1. Bench Height 1.2. Hole Diameter 1.3. Burden 1.4. Spacing 1.5. Sub-Drill Depth 1.6. Top Stemming 1.7. Deck Stemming 1.8. Base Charge Length 2. Delay Timing 2.1. Hole-to-Hole delays 2.2. Row-to-Row delays 2.3. Avoid supersonic face velocity 2.4. Estimating vibration frequency 2.5. Delay scatter 2.6. Out-of-sequence probability 2.7. Probability of close firing 3. Volume, Weight and Powder Factors 3.1. Volume of Rock per blast hole 3.2. Weight of Rock per blast-hole 3.3. Weight of Explosives per blast-hole 3.4. Loading Density 3.5. Powder Factor 4. Working with Angled Holes 4.1. Hole 'Look-out' distance 4.2. Required hole angle 4.3. Required hole length 4.4. Burden - two angled holes 4.5. Stemming - two angled holes 4.6. Collar distance - two angled holes 5. Pre-split Design 5.1. Pre-split spacing 5.2. Pre-split charge load 5.3. Pre-split stemming height 5.4. Pre-split hole diameter 5.5. Pre-split explosive diameter 6. Decoupled Charges 6.1. Coupling Ratio 6.2. Dropped explosive cartridge diameter 6.3. Decoupled Charge Effective Density 7. Wet Hole Formulas 7.1. No. of Cartridges to clear Water 7.2. Final Height of Water in Wet Hole 8. Abney Levels and Clinometers 8.1. Calculate Bench Height 8.2. Calculate Toe Burden 8.3. Face Angle 9. Scaled Distance and Blast Vibration 9.1. Actual Scaled Distance 9.2. Max Charge Weight 9.3. Minimum Distance 9.4. Predicting Vibration 9.5. Site specific k factor 9.6. Site specific b exponent 9.7. Distance from seismic data 9.8. Acceleration from PPV 9.9. Displacement from PPV 9.10. Explosive Quantity from PPV 9.11. K Factor Converting 9.12. Estimated p-wave velocity 10. Flyrock 10.1. Average Muckpile Displacement 10.2. Extreme Flyrock 10.3. Burden Velocity and Throw 10.4. Burden Based on Throw 10.5. Scaled Burial Depth 10.6. Stem Length and Collar Flyrock Potential 11. Detonation and Blast-hole pressure 12. Fragmentation Calculations 12.1. Rock Factor 12.2. Uniformity Index 12.3. Important Particle Size 12.4. Convert D50% to Dxx% 12. Weight and Bulk Strength 12.1. Absolute Bulk Strength 12.2. Absolute Weight Strength 12.3. Relative Bulk Strength 12.4. Relative Weight Strength 12.5. Equivalent Weight of Explosive 13. Overpressure Prediction 14. GPS Data Manipulation 14.1. Latitude/Longitude to Distance 14.2. Distance from UTM coordinates 14.3. Distance from State plane coordinates 14.4. Latitude/Longitude to UTM 14.5. UTM to Latitude/Longitude Supported Conversion Types: 1. Length - meters, kilometers, millimeters, centimeters, micrometers, thou, inches, feet, yard, miles 2. Weight - kilograms, grams, milligrams, tonne, grain, ounces, pounds, ton, imperial ton 3. Velocity - m/s, mm/s, km/s, in/s, ft/s, ft/min, ft/hr, mph, fu/fo 4. Area - m², mm², cm², km², hectare, in², ft², yd², acre, miles² 5. Pressure/Sound - Pa, kPa, MPa, GPa, psi, kpsi, bar, kbar, atm, dB 6. Volume - m³, mm³, cm³, liter, in³, ft³, yd³, gal 7. Time - second, millisecond, minute, hour, day, week, month, year 8. Density - kg/m³, t/m³, g/cm³, lb/ft³, lb/yd³, lb/gal, T/yd³, T/ft³ 9. Powder Factor - kg/m³, g/m³, lb/yd³, kg/t, g/t, lb/ton, t/g, t/kg, ton/lb 10. Linear Charge Weight - g/m, mg/m, kg/m, grain/ft, lb/ft 11. Energy Density - J/m³, J/cm³, kJ/m³, MJ/m³, cal/ft³, cal/cm³, kcal/ft³, kcal/cm³, Mcal/ft³, Mcal/cm³ 12. Specific Energy - J/kg, J/g, kJ/kg, MJ/kg, cal/g, cal/lb, kcal/lb, Mcal/lb, kcal/ton, Mcal/ton 13. Power - watt, kilwatt, horsepower 14. Temperature - celsius, fahrenheit, kelvin All formulas support metric and imperial systems. Detailed explanation is provided for each formula. All entered values are saved for subsequent use and re-use in different formulas.
SmartDirt
Visualize AGTEK takeoff data, including 3D models, data lines, and plansheets, on your mobile device. Interact with a geo-referenced map to view cut-fill information, select points for detailed data, and measure distances or slopes. Create notes, tracks, and capture images for use in other software.
- View 3D models and plansheets
- Interactive geo-referenced map
- Cut-fill visualization
- Point data display (elevation, coordinates)
- Measurement tools (slope, distance)
- Create notes, tracks, and photos
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SmartDirt uses your AGTEK takeoff to display the geo-referenced 3D model, data lines, and plansheets on your iPhone or iPad. Show Cut-Fill as you walk on the interactive grid map or switch to the plans as needed. Select points to see elevations, coordinates, station & offset, point labels and approximate distance from your location. Measure slope or distance with a tap or estimate earthwork quantities with the measure tool. Take pictures, create notes, or create tracks that can be read by Sitework 4D or Google Earth.
Screenshots
Verdict
The clearest difference is price: SmartDirt at Free against BlasToolsPro's $21.99. SmartDirt also leads on update cadence (every 2 months vs every 12 months). BlasToolsPro's advantage is iOS requirement (12.0 vs 15.6). On rating, ratings volume, ads and in-app purchases 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
SmartDirt is free to download; BlasToolsPro costs $21.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.0 for BlasToolsPro against 4.0 for SmartDirt. Both are backed by a comparable volume of ratings — 4 and 5 respectively.
BlasToolsPro ships an update every 12 months, SmartDirt every 2 months. The most recent releases landed on October 11, 2026 and October 29, 2026 respectively.
| Parameter | BlasToolsPro | SmartDirt |
|---|---|---|
| Price | $21.99 | Free — better |
| Rating | 4.0 (4 ratings) | 4.0 (5 ratings) |
| Number of ratings | 4 | 5 — better |
| Update frequency | Every 12 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavel Popov Consulting Inc. | AGTEK Development Company |
Customer experience
BlasToolsPro
SmartDirt
In-app purchases
BlasToolsPro
No in-app purchases
SmartDirt
No in-app purchases
Questions
Is BlasToolsPro free?
Is SmartDirt free?
Which has better reviews, BlasToolsPro or SmartDirt?
Do BlasToolsPro or SmartDirt have ads?
Which is updated more often, BlasToolsPro or SmartDirt?
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