Unit Converter Pro HD. vs Periodic Table PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit Converter Pro HD.
Easily convert between over 700 units of measure across 30 categories. This powerful tool acts as a universal assistant for all your conversion needs, saving you time and effort.
- 30 conversion categories
- Over 700 units of measure
- Backspace key for corrections
- Intuitive and easy to use
- Supports Dark Mode
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The most powerful unit converter in the market. Helps you make easy conversion between more than 700+ various units of measure in 30 categories. Discover a universal assistant for all of your unit conversion needs. Features: √ 30 Categories √ 700+ Units of Measure √ Backspace key √ Extremely Easy-to-Use √ Supports Dark Mode Save Your Time. Quickly & Easily! Universer Unit Converter Pro HD URL scheme is "EWUnitConverterPro://"
Periodic Table PRO
Explore a virtual chemistry lab with interactive experiments and detailed information on all chemical elements. Features include atom structure simulations, downloadable PDFs, and studying analytics to enhance learning. Supports multiple languages and offers a cohesive, functional design.
- Virtual chemistry lab with experiments
- Detailed chemical element information
- Atom structure simulations
- Downloadable element PDFs
- Studying analytics
- Multi-language support
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Periodic Table PRO is a multiple-awarded and certified app that provides the following: 01. A virtual laboratory with cool chemistry experiments 02. Concise information for all chemical elements 03. Multi-language support 04. In memoriam Chernobyl 05. Hidden app secrets (easter eggs) 06. Studying analytics 07. Quick search & in-place information filtering 08. Downloadable PDFs for each chemical element 09. Presentation galleries & movie-clips 10. Atom structure simulations 11. Cohesive design focused on functionality 12. Controls for haptic feedback, sounds & visual effects The app complies with IUPAC's (International Union of Pure and Applied Chemistry) latest standardization and is used in more than 148 countries worldwide. Love the app? Rate us! We update the app regularly so we can make it better for you. If you have feedback & questions please visit our website: https://app.periodic-table.pro Periodic Table PRO - The chemistry lab in your pocket.
Screenshots
Verdict
The clearest difference is price: Periodic Table PRO at Free against Unit Converter Pro HD.'s $0.99. Unit Converter Pro HD.'s advantage is review sentiment (87% vs 50%) and in-app purchases (none vs 8). On rating, ratings volume, update cadence and ads 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
Periodic Table PRO is free to download; Unit Converter Pro HD. costs $0.99 up front. Periodic Table PRO sells 8 one-off in-app purchases. Unit Converter Pro HD. asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for Unit Converter Pro HD. against 4.6 for Periodic Table PRO. Both are backed by a comparable volume of ratings — 187 and 86 respectively. Written reviews are what separate them: 87% of Unit Converter Pro HD.'s written reviews are positive against 50% of Periodic Table PRO's.
Unit Converter Pro HD. ships an update every 2 months, Periodic Table PRO every 6 weeks. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.
| Parameter | Unit Converter Pro HD. | Periodic Table PRO |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.6 (187 ratings) | 4.6 (86 ratings) — better |
| Positive reviews | 86.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 187 — better | 86 |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 13 MB | 210 MB |
| Age rating | 4+ | 4+ |
| Developer | 良峰 侯 | AGILE FLEX TECH SRL |
Customer experience
Unit Converter Pro HD.
Periodic Table PRO
Bugs and requests
Unit Converter Pro HD.
Reported bugs
2 issues- Incorrect fuel consumption conversions
- Conversion values disappearing after update
Requested features
4 requests- Add support for more units (e.g. knots, stone, electron volts)
- Improve navigation and make it easier to find desired units
- Add portrait mode support
- Optimize interface for better usability
Periodic Table PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Unit Converter Pro HD.
No in-app purchases
Periodic Table PRO
- SPECIAL OFFER!$9.99
- Chernobyl experiments$9.99
- Explosive experiments$9.99
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- Funny experiments$9.99
- Experiments with fire$9.99
- Gas bubbles experiments$9.99
- Melting experiments$9.99
- Oxidation experiments$9.99
Questions
Is Unit Converter Pro HD. free?
Is Periodic Table PRO free?
Which has better reviews, Unit Converter Pro HD. or Periodic Table PRO?
Do Unit Converter Pro HD. or Periodic Table PRO have ads?
Which is updated more often, Unit Converter Pro HD. or Periodic Table PRO?
Other comparisons
