Drill Speed vs Shellac Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Drill Speed
Easily calculate optimal drill speeds for various drill bits and materials with an intuitive icon-based interface. This app automatically adjusts options based on your selections and remembers your progress.
- Intuitive icon-based interface
- Wide selection of drill bits and materials
- Automatic option adjustment
- Detailed drill bit and material information
- Saves selection progress
- Apple Watch companion app
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Quickly and easily find optimal drill speeds for your drill bits and materials. Drill Speed has a simple icon based interface that allows you to rapidly find and select your drill bits and materials; no need to laboriously search through tables. Features - Fast and intuitive interface - Wide selection of drill bits and materials - Materials and size ranges automatically adjust to accompany the selected bit / material - Details about your drill bits and materials - Remembers your selection when you close the app, allowing you to pickup where you left off - Apple Watch companion app for quick and easy reference Get Drill Speed and put away your drill speed charts for good.
Shellac Calculator
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Easily calculate the weight of shellac flakes to be mixed with denatured alcohol for finishing. Just choose the proper pound cut of shellac and volume of denatured alcohol (oz or mL) needed for the project to calculate the amount of shellac flakes or buttons to mix. Then, follow the mixing instructions in the app to create your solution.
Screenshots
Verdict
The clearest difference is ads: Drill Speed at none against Shellac Calculator's shown. On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on September 28, 2026 and September 24, 2026 respectively.
| Parameter | Drill Speed | Shellac Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Every 6 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 13.2 — better | 14.0 |
| Further details — not scored | ||
| Size | 41 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Bykov | Innovative Tomato, LLC |
In-app purchases
Drill Speed
No in-app purchases
Shellac Calculator
No in-app purchases
