ZHCODE vs Flange Hole Marker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZHCODE
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By scanning specific private anti-counterfeit two-dimensional code (ZH Code), users can inquire the authenticity of goods purchased, obtain product summary and source information, second time purchase information, and also enjoy higher value services, such as after-sales customer service. This App does not mandate users to provide GPS information.
Flange Hole Marker
Calculate the cord length needed to mark holes on a flange's pitch circle diameter. Ideal for fabrication professionals, this tool simplifies bolt hole marking on various industrial equipment.
- Hole center marking on flange
- Calculates cord length for hole division
- Uses Pitch Circle Diameter (PCD) or Bolt Hole Circle Diameter (BCD)
- Supports fabrication of process equipment
- Simplifies bolt hole marking
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This app is very useful during hole center Marking on flange at a given Pitch Circle Diameter. This app gives hows much cord length required to divide required No of hole on our available Pitch Circle Diameter. This app is very useful for those who are dealing with flange hole marking or bolt hole marking on flanges or any other application where we had to divide required no of parts on pitch circle diameter. This app is for professional and any other who are working in the field of fabrication of process equipment such as pressure vessel, heat ex changer, storage tank,reactor, agitator or mixer and heavy engineering Equipment. In this app Inputs required only pitch circle diameter ( PCD )or bolt hole circle diameter ( BCD ). key words : Bolt Hole Diameter,Pitch circle Diameter,flanges, hole marking, fabrication, pressure vessel, welding etc
Screenshots
Verdict
The clearest difference is price: ZHCODE at Free against Flange Hole Marker's $1.99. ZHCODE also leads on update cadence (every 2 months vs every 55 months) and iOS requirement (9.3 vs 16.1). 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
ZHCODE is free to download; Flange Hole Marker costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ZHCODE ships an update every 2 months, Flange Hole Marker every 55 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | ZHCODE | Flange Hole Marker |
|---|---|---|
| Price | Free — better | $1.99 |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 2 months — better | Every 55 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.3 — better | 16.1 |
| Further details — not scored | ||
| Size | 43 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jutone Electronic Co., Ltd. | Imran Pinjara |
In-app purchases
ZHCODE
No in-app purchases
Flange Hole Marker
No in-app purchases
