FVAG vs PROG_CALC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FVAG
This diagnostic scanner app provides comprehensive vehicle checks for VW, Audi, Skoda, and Seat models. It's a compact and user-friendly tool that allows operation and diagnosis directly from a mobile phone. The app offers numerous special functions for in-depth vehicle maintenance and troubleshooting.
- Comprehensive vehicle scanning
- Special functions (Throttle Adaptation, Immobilizer, etc.)
- Mobile phone operation
- Compact and easy to use
- Free for life
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FVAG is one of the most comprehensive and cost-effective scanners for VW, Audi, Skoda, and Seat. The scanner is extremely small and easy to use. Customer can operate and diagnose on his mobile phone, and the APP is totally free for life. More importantly, FVAG provides tons of special functions including Throttle Adaptation, Immobilizer, Actuation Test, Transmission Test, Service Reset and many more.
PROG_CALC
This app offers a programmable calculator with two distinct modes for daily computing and advanced mathematical functions. It supports system conversions between binary, octal, decimal, and hexadecimal, and allows for variable storage and code sharing.
- Basic and advanced calculation modes
- Syntax parser
- Variable storage and editing
- Binary, octal, decimal, hexadecimal conversion
- Built-in code examples
- Code sharing via QR code or file
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The programming calculator provides two modes of operation. It has built-in basic operation functions, syntax parser, and supports a variety of application scenarios. 【Basic calculation】 Basic mode provides basic calculator functions for daily computing applications. 【Mathematical function】 Built-in rich mathematical functions, easy to implement basic calculations. 【Variable Storage】 Provides variable storage function, can store intermediate calculation results in basic mode, import and export with one key during application, and edit mode provides variable browsing function to easily grasp calculation results. 【System conversion】 Support binary, octal, decimal, hexadecimal conversion to meet the computing needs of different platforms. 【Code Example】 With built-in code writing examples, you can easily learn computing methods and expand application scenarios. 【Code Sharing】 The code can be shared through a QR code or a file, and the application also supports reading files directly, or scanning a QR code, which can be written on a computer and applied on a mobile phone.
Screenshots
Verdict
The clearest difference is review sentiment: PROG_CALC at 100% against FVAG's 25%. PROG_CALC also leads on rating (5.0 vs 1.0) and update cadence (every 2 weeks vs every 5 weeks). FVAG's advantage is iOS requirement (11.0 vs 13). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PROG_CALC holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 25% of FVAG's written reviews are positive against 100% of PROG_CALC's.
FVAG ships an update every 5 weeks, PROG_CALC every 2 weeks. Both last shipped on November 3, 2026.
| Parameter | FVAG | PROG_CALC |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 25.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 11.0 — better | 13 |
| Further details — not scored | ||
| Size | 18 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | 深圳市爱夫卡科技有限公司 | 嘉欣 胡 |
Customer experience
FVAG
PROG_CALC
In-app purchases
FVAG
No in-app purchases
PROG_CALC
No in-app purchases









