Gear Lab vs KPS Welding
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gear Lab
This utility app provides calculators for setting up, producing, and checking worm, helical, and spur gears. It can be used for individual calculations or as a complete process flow from start to finish.
- Worm gear calculations
- Helical gear calculations
- Spur gear calculations
- Individual calculator use
- Complete process flow
- Base tangent data output
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These calculators have been developed to help in the Setting up, Production and Checking of the gears available via the Ultrascale web site. Three of the main types of gears are covered, these are Worm gears, Helical gears and Spur gears. The flow of the app has been setup in such a way as to allow for the calculators to be used on a individual basis, using minimal information to output the basic data required, or as a complete process flow from start to finish. For example, starting at the worm then creating a matching worm wheel and then to output the base tangent data to allow the gear to be checked.
KPS Welding
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The welding app must be connected to an e8 welding machine from Elaso AG. This allows the user to control and monitor the welding process. The APP guides the user trough the whole process of the welding. During welding, the current, the remaining time and the level in percent (bar graph) are displayed. The user will be alerted to the end of a weld or an error by means of a hint (e8) or vibration (smartphone). In the event of an error, the display shows which error is involved and how to proceed. Various parameters such as the mains voltage, the mains frequency, the socket resistance, the indoor and outdoor temperature are permanently displayed."
Screenshots
Verdict
The clearest difference is update cadence: KPS Welding at every 4 months against Gear Lab's every 13 months. Gear Lab's advantage is iOS requirement (8.0 vs 15.6). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Gear Lab ships an update every 13 months, KPS Welding every 4 months. The most recent releases landed on September 10, 2026 and September 16, 2026 respectively.
| Parameter | Gear Lab | KPS Welding |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 13 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 14 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | SpiralArm Consulting Limited | Elaso AG |
In-app purchases
Gear Lab
No in-app purchases
KPS Welding
No in-app purchases
Questions
Is Gear Lab free?
Is KPS Welding free?
Do Gear Lab or KPS Welding have ads?
Which is updated more often, Gear Lab or KPS Welding?
Other comparisons
