Physical Constants vs VKP Parent App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Physical Constants
Access a comprehensive list of physical constants, organized by category for easy searching. This app supports all AppStore languages and allows users to report corrections via email.
- Physical constants database
- Categorized by topic
- Search functionality
- Multi-language support
- User feedback for corrections
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Application that displays the physical constants. Classified by category, easy to search. Supports all languages in the AppStore. If you find something to be corrected, please send an E-mail (English or Japanese).
VKP Parent App
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Uniquely designed for schools managed by Velammal Knowledge Park. Parents can use the app to get notifications, check the goal activities conducted, look at report card and submit feedback.
Screenshots
Verdict
The clearest difference is ads: VKP Parent App at none against Physical Constants's shown. VKP Parent App also leads on update cadence (every 5 weeks vs every 9 months). On price, in-app purchases, device support and iOS requirement 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.
Physical Constants ships an update every 9 months, VKP Parent App every 5 weeks. The most recent releases landed on November 11, 2026 and October 25, 2026 respectively.
| Parameter | Physical Constants | VKP Parent App |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (3 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 9 months | Every 5 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Takuya Ishikawa | NexBorg Software Solutions Private Limited |
In-app purchases
Physical Constants
No in-app purchases
VKP Parent App
No in-app purchases
Questions
Is Physical Constants free?
Is VKP Parent App free?
Do Physical Constants or VKP Parent App have ads?
Which is updated more often, Physical Constants or VKP Parent App?
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