SchemaHD vs FRENIC Mobile Loader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SchemaHD
This app allows users to draw circuit diagrams for logic circuits, generating Verilog HDL and performing simulations. It simplifies FPGA development by using schematics instead of complex programming languages, offering advanced security and high-performance parallel processing.
- Draw logic circuit diagrams
- Generate Verilog HDL
- Perform circuit simulations
- Touch-based wiring
- AXI bus interface support
- JSON import/export
- Offline network operation
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FPGAs can dynamically generate logic circuits by means of configuration bit streams generated by languages such as Verilog and VHDL. The generated logic circuit cannot be changed by communication data. Therefore, it is very safe and cannot be attacked by hacking, which is a problem with CPUs, to execute arbitrary commands. In addition, the generated logic circuits are all running simultaneously, so the highest performance parallel processing is being performed. It can also generate logic circuits using configuration bitstreams at very high speed. Most of the processing that can be done by the CPU can be done by the FPGA alone. With advanced security and the highest performace, FPGAs are the perfect device for the modern age. However, it takes a lot of effort to learn languages such as Verilog and VHDL. There are other methods such as high-level synthesis from C/C++, but they require a lot of adjustments such as #pragma, and do not maximize the capabilities of the FPGA. Schematics, not programming languages, are needed to maximize the capabilities of FPGAs and to further improve developer productivity. Schematics allow you to grasp the whole picture at a glance, and can perfectly represent parallel processing. SchemaHD is to draw a circuit diagram of a logic circuit, and it's possible to do generation of Verilog HDL and a simulation. A made circuit diagram can be used by a different circuit diagram immediately. You can also install wiring easily by touch operation. A concept of interface is adopted as a terminal, so something structured of a AXI bus can also be used. A terminal it's also possible to distinguish sound argument reason, negative logic and characteristic wiring of a clock and a reset by interface, and which is different in interface, they don't seem able to connect, it is. You can input and output as a JSON file, so the made circuit diagram and interface are also capable of cooperation with other application. Verilog HDL generated from a circuit diagram contains a comment of a terminal name and an instance name, so it's capable of the correspondence which is at the time of problem occurrence. A network connection isn't needed, so it's also effective in information leak prevention. A simple simulation is offered in the present, but it's expected to enhance it early.
FRENIC Mobile Loader
Connect to Fuji Electric inverters via Bluetooth to edit function codes and monitor real-time operating status. View alarm history, I/O status, and trace analog/digital signals as waveforms. Requires an optional multi-function keypad for Bluetooth connection.
- Edit inverter function codes
- Real-time operating status monitoring
- Alarm history display
- I/O and component status view
- Real-time waveform tracing
- Connects to FRENIC-MEGA, Ace, and Mini inverters
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●富士電機製汎用インバータと Bluetoothで接続することで、インバータの機能コード編集、運転状態のリアルタイムなモニタリングが出来ます。 ※Bluetooth接続には、オプションの多機能キーパッドが必要です。 ●機能コードの編集 機能コードの「編集」「読込」「転送」「比較」「初期化」「データ格納」が可能 ●モニタリング リアルタイムに運転状態をメータ表示 アラーム履歴表示 I/O状態表示,有寿命部品の状態表示 ●トレース アナログ・デジタル信号をリアルタイムに波形表示 ●接続可能インバータ FRENIC-MEGA(G2) FRENIC-Ace(E3) FRENIC-Mini(C3) ●動作確認済みスマートフォン iPhone 14 ※ただし、動作を保障するものではありません。 ※お問い合わせの際は、弊社プライバシーポリシーをご確認の上、ご利用ください。
Screenshots
Verdict
The clearest difference is review sentiment: FRENIC Mobile Loader at 100% against SchemaHD's 50%. FRENIC Mobile Loader also leads on rating (4.0 vs 3.0) and in-app purchases (none vs 7). SchemaHD's advantage is update cadence (every 10 days vs every 4 months) and iOS requirement (14.0 vs 17.2). On price, ratings volume, ads and monetization model 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. SchemaHD sells 7 one-off in-app purchases. FRENIC Mobile Loader asks for nothing beyond the download.
FRENIC Mobile Loader holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 50% of SchemaHD's written reviews are positive against 100% of FRENIC Mobile Loader's.
SchemaHD ships an update every 10 days, FRENIC Mobile Loader every 4 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | SchemaHD | FRENIC Mobile Loader |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 10 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 14.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 2 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasuaki Iwasaki | 富士電機株式会社 |
Customer experience
SchemaHD
FRENIC Mobile Loader
In-app purchases
SchemaHD
- Give a tip #1$1.99
- Give a tip #2$3.99
- Give a tip #3$7.99
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- Give a tip #4$15.99
- Give a tip #5$23.99
- Give a tip #6$39.99
- Give a tip #7$79.99
FRENIC Mobile Loader
No in-app purchases









