Vortex Tool Co. vs i
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vortex Tool Co.
This utility helps CNC router operators select the right tool for their cutting tasks. It provides specific tool suggestions, feed rates, and RPMs based on your material and cut type. The app also includes helpful calculators for chip load, RPM, and feed rate.
- Tool selection based on material and cut type
- Specific tool suggestions
- Feed rate and RPM recommendations
- Chip load calculator
- RPM calculator
- Feed rate calculator
- Metric conversion
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The Vortex Tool Selection App has been developed by the staff at Vortex Tool Co., Inc. to provide CNC router operators simple and precise procedure for selecting the correct tool for their specific cutting application. By simply answering a series of drop down selection criteria, the app will then make a specific tool suggestion and provide the proper feed rate and RPM for running the suggested tool. This app also includes a number of helpful calculators for variables such as chip load, rpm, and feed rate. Tool selection criteria needed: - Type of material - Spindle horsepower - Tool diameter required - Material thickness - Type of cut (through cut, dado or both) - Also includes calculators for feed rate, rpm and chip load with metric conversion
i
This utility app assists machinists with CNC calculations, including cutting speed, RPM, and feed rate. It also provides databases for hole and shaft tolerances, as well as detailed thread specifications.
- Cutting speed calculation
- RPM calculation
- Feed rate calculation
- Hole and shaft tolerance database
- Thread data
- Milling, drilling, and turning operations
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iMachinist is a simple to use CNC calculator app that calculates for you the cuttings speed, RPM, feed rate and more for your milling, drilling and turning operations. iMachinist also includes a database for Hole and Shaft Tolerances and different Threads. Threads Data: - Outer Diameter (max/min) - Pitch Diameter (max/min) - Core Diameter (max/min) - Thread Height (max/min) Tolerance Data: - Zone (Shaft/Hole) - Grade (Shaft/Hole) - Diameter (Shaft/Hole) Cutting Calculator: - Tool Diameter - Cutting Speed - Spindle Speed - Number of Teeth - Feed per Tooth - Feed Rate
Screenshots
Verdict
The clearest difference is rating: Vortex Tool Co. at 3.8 against i's 2.6. Vortex Tool Co. also leads on review sentiment (75% vs 33%) and update cadence (every 3 months vs every 13 months). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Vortex Tool Co. holds the better App Store score, 3.8 against 2.6. Both are backed by a comparable volume of ratings — 4 and 9 respectively. Written reviews point the same way: 75% of Vortex Tool Co.'s written reviews are positive against 33% of i's.
Vortex Tool Co. ships an update every 3 months, i every 13 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.
| Parameter | Vortex Tool Co. | i |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) — better | 2.6 (9 ratings) |
| Positive reviews | 75.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 4 | 9 — better |
| Update frequency | Every 3 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 25 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | BiznetIS Net Inc | ilan TETRUASHVILI |
Customer experience
Vortex Tool Co.
i
In-app purchases
Vortex Tool Co.
No in-app purchases
i
No in-app purchases
