Engineering Calculator vs IPF CONNECT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engineering Calculator
This utility app helps users convert units and calculate tips, primarily for those in the US. It operates offline and aims for minimal user interaction to provide quick results. Useful for avoiding misunderstandings in business dealings due to unit differences.
- Unit conversion
- Tip calculation
- Offline functionality
- Minimalist interface
- Business negotiation aid
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米国（アメリカ）で生活するエンジニアのための単位換算、チップ計算ができるアプリです。 特にエンジニアである必要もないですが。。。 オフラインで動作可能、広告もありません。 極力少ない操作で結果が出るようになっています。 米国企業などと商談を行うときには単位の相違によって誤解が生じることが多々あります。 このアプリを使って手早く単位変換ができれば、早く理解出来、結果商談の成功に繋がります。
IPF CONNECT
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To use this application, you will need IPF "WR Wireless Switch" (Part No. WR-3) and IPF Off-Road Lamps are required to use this application. For information of the supported products, Please refer to the following URL. https://www.ipf.co.jp/products/all_products.html Please read and agree to the application terms of use from the following URL before installing this application. http://www.ipf.co.jp/kiyaku/kiyaku_soft.html ◆WR Wireless Switch (WR-3) Product Features. 〇 It enable to turn light on/off IPF off-road lamps by your smartphone. 〇 One unit can control up to two systems. 〇 Technical standards compliance marked products (Japan).
Screenshots
Verdict
The clearest difference is ads: IPF CONNECT at none against Engineering Calculator's shown. Engineering Calculator's advantage is update cadence (monthly vs every 16 months). On price, in-app purchases, device support and iOS requirement 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.
Engineering Calculator ships an update monthly, IPF CONNECT every 16 months. The most recent releases landed on September 23, 2026 and September 29, 2026 respectively.
| Parameter | Engineering Calculator | IPF CONNECT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly — better | Every 16 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Masato Kanazawa | IPF corporation. |
In-app purchases
Engineering Calculator
No in-app purchases
IPF CONNECT
No in-app purchases
Questions
Is Engineering Calculator free?
Is IPF CONNECT free?
Do Engineering Calculator or IPF CONNECT have ads?
Which is updated more often, Engineering Calculator or IPF CONNECT?
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