Hardness Unit Converter vs AshtonBOX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hardness Unit Converter
Easily convert hardness values between 12 different units, including Vickers, Brinell, Rockwell, and Shore. Input your value and select the desired unit for instant conversion, referencing ASTM E 140 standards and polynomial approximations for accuracy.
- Converts 12 hardness units
- Vickers, Brinell, Rockwell, Shore support
- Tensile strength conversion
- ASTM E 140 reference
- Polynomial approximation for data
- Simple input and unit selection
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The Hardness Unit Converter application converts the hardness into 12 types of units. The units to be converted by this application are Vickers hardness HV, Brinell hardness HBS, HBW, Rockwell hardness HRA, HRB, HRC, HRD, Rockwell superficial hardness HR 15 N, HR 30 N, HR 45 N, Shore hardness HS, and tensile strength MPa. Simply input the hardness value and select the unit of hardness with the unit selection button, it will be converted into 12 types of units. This application refers to the approximate conversion table of ASTM E 140 Table 1 and JIS, and data not in the table is calculated by polynomial approximation. Values in the range not normally used are indicated by ().
AshtonBOX
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本产品应用于工业，为实现智慧工厂，智慧生产，提高生产效率，实现人机配合； 我们所实现的目标 （1）通过价值网络实现横向集成 （2）工程端到端数字集成横跨整个价值链 （3）垂直集成和网络化的制造系统 开发模块化以及重新使用战略来完成点对点网络和制造系统重构，以及恰当的智能系统描述也很重要。
Screenshots
Verdict
The clearest difference is price: AshtonBOX at Free against Hardness Unit Converter's $1.99. AshtonBOX also leads on update cadence (every 3 weeks vs every 5 months). On ads, 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
AshtonBOX is free to download; Hardness Unit Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Hardness Unit Converter ships an update every 5 months, AshtonBOX every 3 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.
| Parameter | Hardness Unit Converter | AshtonBOX |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.0 (7 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 251 MB |
| Age rating | 4+ | 4+ |
| Developer | Kei Suefuji | Flydiagram |
In-app purchases
Hardness Unit Converter
No in-app purchases
AshtonBOX
No in-app purchases
Questions
Is Hardness Unit Converter free?
Is AshtonBOX free?
Do Hardness Unit Converter or AshtonBOX have ads?
Which is updated more often, Hardness Unit Converter or AshtonBOX?
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