Drill Calc vs Bricks Estimator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Drill Calc
This utility app helps you determine the correct drill bit size for threaded holes. It supports both inch and metric threads, calculates close and tight fit hole sizes, and provides tables for standard drill bit sizes and pipe information.
- Calculates drill bit size for threaded holes
- Supports inch and metric threads
- Displays close and tight fit hole sizes
- Includes standard inch fractional and numeric drill bit tables
- Provides pipe size information
- Offers data on common wood screw sizes
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Need to find the right drill bit size for a hole? Drill Calc calculates the correct drill bit size to use for threaded holes, based on the bolt (tap) diameter and thread pitch and percentage, for both inch and metric threads. Close and tight fit hole sizes for many popular drill sizes are also displayed. It also has tables of standard inch fractional and numeric drill bit sizes, as well as complete information for various pipe sizes. There is also detailed information about the commonly used sizes of wood screws. Buy your copy of Drill Calc today, and put away your drill chart.
Bricks Estimator
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Calculate how many bricks / blocks you need for your project. Based on the area of the wall (pathway, patio, etc) and the brick size the App quickly calculates how many bricks are required. The results can me texted / emailed as needed. Optionally adjust the brick requirements for mortar joints and any bricks that might be wasted during the building process. You can also get a cost estimate for the total costs of the bricks.
Screenshots
Verdict
The clearest difference is update cadence: Drill Calc at every 18 months against Bricks Estimator's every 46 months. Drill Calc also leads on iOS requirement (12.0 vs 17.6). Bricks Estimator's advantage is price ($1.99 vs $2.99). On ads, in-app purchases and 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
Drill Calc costs $2.99 and Bricks Estimator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Drill Calc ships an update every 18 months, Bricks Estimator every 46 months. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.
| Parameter | Drill Calc | Bricks Estimator |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | 4.1 (19 ratings) — better | — |
| Positive reviews | 91.7% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 18 months — better | Every 46 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Black Cat Systems | H3 Apps, LLC |
In-app purchases
Drill Calc
No in-app purchases
Bricks Estimator
No in-app purchases
Questions
Is Drill Calc free?
Is Bricks Estimator free?
Do Drill Calc or Bricks Estimator have ads?
Which is updated more often, Drill Calc or Bricks Estimator?
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