Periodic Table PRO vs AALocker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
AALocker
This app helps parents manage their children's device usage by blocking specific apps and setting time limits. It allows for scheduled access and can lock apps based on location to encourage responsible digital habits.
- Block specific apps
- Set daily schedules
- App usage limits
- Location-based app blocking
- Focus mode
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AALocker is a highly useful screen time control app designed for parents. It offers flexible and effective features to help parents manage the time their children spend on devices. With AALocker, parents can: - Block specific apps such as social media and games to gain better control over their children's device usage. - Set up schedules based on daily needs like study time and leisure time, and authorize certain apps for certain time slots to avoid accidental overuse or excessive addiction. - Apply usage limits to each app, so that if a child exceeds the preset time limit, the app will be locked, thereby limiting excessive use of the device and the app. - AALocker also support focus mode based on the user's set location. With this feature, parents can specify certain apps to be blocked when the device is in a specific location range. In short, AALocker is a highly practical app that can help parents control their children's screen time and device usage while facilitating their growth in a simple and user-friendly way. Privacy Policy and Terms of Use https://okaapps.com/privacy https://okaapps.com/terms
Screenshots
Verdict
Periodic Table PRO and AALocker both sit at 4.6 stars, but that hides the real split: 70% of AALocker's written reviews are positive against 50% of Periodic Table PRO's. AALocker also leads on update cadence (fortnightly vs every 6 weeks) and monetization model (free with in-app purchases vs paid). Periodic Table PRO's advantage is iOS requirement (13.0 vs 16.0). On price, rating, 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. Periodic Table PRO sells 8 one-off in-app purchases and AALocker sells 7 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for Periodic Table PRO against 4.6 for AALocker. Both are backed by a comparable volume of ratings — 86 and 259 respectively. Written reviews are what separate them: 50% of Periodic Table PRO's written reviews are positive against 70% of AALocker's.
Periodic Table PRO ships an update every 6 weeks, AALocker fortnightly. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.
| Parameter | Periodic Table PRO | AALocker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (86 ratings) — better | 4.6 (259 ratings) |
| Positive reviews | 50.0% of reviews | 69.6% of reviews — better |
| Number of ratings | 86 | 259 — better |
| Update frequency | Every 6 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 210 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | AGILE FLEX TECH SRL | Nanjing Oumi Software Development Co., Ltd. |
Customer experience
Periodic Table PRO
AALocker
Bugs and requests
Periodic Table PRO
Not enough reviews yet to summarise bugs or requests.
AALocker
Reported bugs
10 issues- Stuck on authorization/password screen
- Blank screen when searching in groups
- App icon still on desktop after enabling
- App cannot be uninstalled completely
- App glitches and doesn't work
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- Overnight app blocking not working
- Siri shortcuts integration removed
- App requests subscription repeatedly
- Cannot claim free offers due to trial requirement
- No VIP option available as advertised
Requested features
8 requests- Ability to change app names
- Add search functionality when adding apps
- Add Siri shortcuts toggle
- Ability to hide the app itself
- Support for older iOS versions (iOS 15)
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- Add new groups
- Ability to change app icons
- Ability to change app names
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
AALocker
- Upgrade to VIP3 Days trial$1.997 Days
- Upgrade to VIP$1.997 Days
- Upgrade to VIP$5.991 Month
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- Upgrade to VIP3 Days trial$5.991 Month
- Upgrade to VIP$9.991 Year
- Upgrade to VIP3 Days trial$9.991 Year
- Upgrade to lifetime VIP$14.99
Questions
Is Periodic Table PRO free?
Is AALocker free?
Which has better reviews, Periodic Table PRO or AALocker?
Do Periodic Table PRO or AALocker have ads?
Which is updated more often, Periodic Table PRO or AALocker?
Other comparisons
