Percentage Value Calculator vs knowra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Percentage Value Calculator
Easily calculate percentages with detailed step-by-step solutions. Input any two variables to find the third, with support for fractions and decimals. All calculations are saved in a history that can be managed and shared.
- Percentage calculation
- Detailed solution steps
- History function
- Support for fractions and decimals
- Option to remove ads
- Swipe navigation
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Finish your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and calculate base value, percentage value, and percentage rate. HOW IT WORKS Enter your values into the appropriate fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR DATA We don’t need it. Only anonymized data is collected, such as: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps remain fully available at all times. If you need many solutions in a short time, various purchase options are available. EXTRAS - Curated learning videos - Feedback on incorrect inputs - Manage your own solutions - App introduction CONTACT Questions and feedback via Discord or directly in the app review.
knowra
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Knowra helps you quickly screen research papers and focus on what is worth reading. Discover: - Swipeable paper cards for fast keep-or-skip decisions - Personalized feed based on your fields and goals - Clear at-a-glance signals to support fast judgment Scout: - Open Scout for structured paper briefs - Read key points first, then decide whether to go deeper Library: - Save papers you care about and revisit them anytime - Search and filter your saved list by keywords and categories - Open the original source when you are ready for full reading Account & Sync: - Sign in with Email OTP, Apple, or Google - Keep preferences and activity synced across sessions Knowra is built for researchers, engineers, and students who want to stay current without information overload. Privacy Policy: https://knowra.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Percentage Value Calculator at every 3 weeks against knowra's every 7 months. Percentage Value Calculator also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, 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. Percentage Value Calculator sells 8 one-off in-app purchases and knowra sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Percentage Value Calculator ships an update every 3 weeks, knowra every 7 months. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.
| Parameter | Percentage Value Calculator | knowra |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks — better | Every 7 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 180 MB | 11 MB |
| Age rating | 4+ | 12+ |
| Developer | Glindemann, Sennoun, Langer GbR | 瑞基 张 |
In-app purchases
Percentage Value Calculator
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$1.99
- Lifetime Access$1.99
knowra
- Pro Monthly1 Month trial$9.991 Month
- Pro Monthly$9.991 Month
- Pro Yearly$99.001 Year
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- Pro Yearly$99.991 Year
Questions
Is Percentage Value Calculator free?
Is knowra free?
Do Percentage Value Calculator or knowra have ads?
Which is updated more often, Percentage Value Calculator or knowra?
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