III vs 恩典之声
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
III
Calculate material properties for III-V compound semiconductors like AlGaInAsP. It determines compositions, lattice constant, strain, bandgap, and effective masses for InP or GaAs substrates.
- III-V compound semiconductor calculations
- Material property determination
- Composition calculation (x, y, z)
- Lattice constant and strain analysis
- Bandgap and effective mass calculation
- Supports InP and GaAs substrates
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Application to calculate the compositions and material properties of a III-V compound semiconductor. Either InP or GaAs is assumed for the substrate. Some of the compositions and material parameters of the AlGaInAsP compound semiconductor are specified to determine the remain unknown parameters. The following properties are shown as a result: compositions (x, y, z), lattice constant, strain, bandgap, relative energy positions of the conduction and valence bands, and effective masses of the electron and holes.
恩典之声
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Verdict
The clearest difference is price: 恩典之声 at Free against III's $2.99. 恩典之声 also leads on rating (4.8 vs 4.0) and update cadence (every 2 months vs every 17 months). III's advantage is iOS requirement (11.0 vs 13.0). On review sentiment, 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
恩典之声 is free to download; III costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
恩典之声 holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: 恩典之声 has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
III ships an update every 17 months, 恩典之声 every 2 months. The most recent releases landed on August 24, 2026 and June 5, 2026 respectively.
| Parameter | III | 恩典之声 |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.0 (1 ratings) | 4.8 (5 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 17 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Takuya Ishikawa | 上海基文文化传播有限公司 |
Customer experience
III
恩典之声
In-app purchases
III
No in-app purchases
恩典之声
No in-app purchases
