PROG_CALC vs VisAudra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
VisAudra
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VisAudra App Features The VisAudra App enhances your listening experience with Music Info Display, Emotion-Adaptive Visuals, Scene Modes, and OTA Updates. Music Info Display View real-time song information, including track title, artist, album details, and playback status. Emotion-Adaptive Visuals Dynamic animations and visual effects automatically respond to the mood and rhythm of your music. Scene Modes Choose from different listening modes, such as Relaxation, Focus, and Meditation, to match any moment. OTA Updates Keep your device up to date with wireless firmware updates and new features. User Experience With intuitive controls, immersive visuals, premium audio, and personalized settings, the VisAudra App delivers a seamless and engaging music experience.
Screenshots
Verdict
The clearest difference is device support: PROG_CALC at 4 against VisAudra's 2. PROG_CALC also leads on iOS requirement (13 vs 15.0). On price, update cadence, 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 ships an update every 2 weeks, VisAudra every 3 weeks. The most recent releases landed on July 16, 2026 and September 23, 2026 respectively.
| Parameter | PROG_CALC | VisAudra |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 13 — better | 15.0 |
| Further details — not scored | ||
| Size | 78 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | 嘉欣 胡 | 深圳市斯特孚科技有限公司 |
In-app purchases
PROG_CALC
No in-app purchases
VisAudra
No in-app purchases









