Hardness Unit Converter vs 计算器 EMMO
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 ().
计算器 EMMO
A professional scientific calculator with a user-friendly interface and customizable themes. It offers advanced functions beyond the standard system calculator, along with a history log for easy access to past calculations.
- Advanced scientific functions
- Customizable themes
- History log
- Multiple sound effects
- Smart and convenient operation
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EMMO计算器 EMMO出品，必属精品 比系统计算器更全能实用，占用空间，方便智能便捷。 出色的马卡龙配色 各种好看的主题 适合女生 10几种音效 历史记录功能
Screenshots
Verdict
The clearest difference is review sentiment: 计算器 EMMO at 85% against Hardness Unit Converter's 17%. 计算器 EMMO also leads on rating (5.0 vs 4.0) and update cadence (monthly vs every 5 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
Hardness Unit Converter costs $1.99 and 计算器 EMMO $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
计算器 EMMO holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 7 and 20 respectively. Written reviews point the same way: 17% of Hardness Unit Converter's written reviews are positive against 85% of 计算器 EMMO's.
Hardness Unit Converter ships an update every 5 months, 计算器 EMMO monthly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | Hardness Unit Converter | 计算器 EMMO |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 4.0 (7 ratings) | 5.0 (20 ratings) — better |
| Positive reviews | 16.7% of reviews | 85.2% of reviews — better |
| Number of ratings | 7 | 20 — better |
| Update frequency | Every 5 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Kei Suefuji | EMMO Corp. |
Customer experience
Hardness Unit Converter
计算器 EMMO
In-app purchases
Hardness Unit Converter
No in-app purchases
计算器 EMMO
No in-app purchases
Questions
Is Hardness Unit Converter free?
Is 计算器 EMMO free?
Which has better reviews, Hardness Unit Converter or 计算器 EMMO?
Do Hardness Unit Converter or 计算器 EMMO have ads?
Which is updated more often, Hardness Unit Converter or 计算器 EMMO?
Other comparisons
