CheckDEC vs A
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CheckDEC
This app connects children, families, and professionals with local resources and services for substance misuse. It offers links, downloadable content, and videos, alongside a news feed and a platform for sharing personal stories of hope and support.
- Local substance misuse resources
- Links, downloads, and videos
- Peer-to-peer story sharing
- Professional resources and information
- Up-to-date news feed on substance use
- Engagement and hope for families
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The CheckDEC mobile app is provided for free by the National Alliance for Drug Endangered Children. The app connects children, families and communities to legal or illegal substance misuse resources, services within their local own community. Users can select from a variety of categories and sub-categories to find the specific resource or service specific to their need. The resources are a combination of links, downloadable content and videos. This powerful app puts a multitude of impactful resources and services, within minutes of the users’ location, in the palm of their hands. Children are the first ones affected by parent or caregiver legal or illegal substance use and the last ones helped. This app connects children and families to help today. Users can submit their own real-life story, message of hope or support via video or text. This peer-to-peer sharing can be powerful, encouraging and may change the trajectory of lives. The app also connects multidisciplinary professionals who are in contact, care or supervision of children who are have a parent or caregiver in legal or illegal substance use with resources, services and information. Professionals can share and download information regarding substance abuse and share resources with the children, families and community they serve or where they live. A comprehensive news feed provides children, families, communities and professionals with up to the minute news about substance use, prevention, services, research, statistics and data, where to find help and much more. The app provides videos and links for engagement, encouragement and hope for children and families in challenging substance use situations. Phase 2 of the app will launch September 2022 with additional content, tools and training. The National Alliance for Drug Endangered Children teaches early identification, response and appropriate intervention services to children and families affected by parental or caregiver substance misuse. We equip comprehensive, multidisciplinary alliances, communities, organizations and individuals with access to our national resource center, trainings and technical assistance. Our vision is 100% healthy, safe children, families and communities free from the negative impact of substance misuse and drug activity. We define drug endangered children as children who are at risk of suffering physical, mental or emotional harm as a result of parent or caregiver legal or illegal substance misuse. They may also be children whose caretaker’s legal or illegal substance use interferes with the caretaker’s ability to parent and provide a safe and nurturing environment. For more information: www.nationaldec.org This app is funded through a grant from the U.S. Department of Justice's (DOJ) Office for Victims of Crime. Neither DOJ nor any of its components operate, control, are responsible for, or necessarily endorse this app (including, without limitation, it’s content, technical infrastructure, and policies, and any services or tools provided).
A
Prepare for A-Level Biology exams with over 1000 practice questions covering all topics. Track your progress, identify areas for improvement, and take chapter-based tests and full mock quizzes to assess your readiness.
- 1000+ practice questions
- Covers all course topics
- Chapter-based tests
- Pop and Mock quizzes
- Progress monitoring
- Topic-specific improvement tracking
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The A-Level Biology App. This app helps you revise and monitor your progress for the A-Level biology examination. The app contain 1000+ questions from all topics and sub topics which are covered in the official course. App covers all the topics where you can practice and learn. There are test based on each chapter in the end to practice your concepts. You can then take Pop or Mock quizzes on the complete course to see where you stand. The app also helps you to monitor your progress and scores and shows your improvement by topic so that you can focus more or less on topics as required. Any feedback you have on the content or the user interface would be warmly received - please email us at aerion.labs@gmail.com. We wish you all the best for your examinations. The A-Level Biology App-AQA subscription "A-Level Biology Subscription" The A-Level Biology App-AQA plans: Monthly: GBP 1.99 Payments and Renewal: Monthly Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase No cancellation of the current subscription is allowed during the active period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/aerionlabs/home/PrivacyPolicy Contact Us: https://sites.google.com/view/aerionlabs/home/about-us
Screenshots
Verdict
The clearest difference is review sentiment: CheckDEC at 100% against A's 0%. CheckDEC also leads on rating (5.0 vs 1.0) and in-app purchases (none vs 3). On price, ads and device support 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. A sells 3 in-app purchases, starting at $1.99 per month. CheckDEC asks for nothing beyond the download.
CheckDEC holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: CheckDEC has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of CheckDEC's written reviews are positive against 0% of A's.
CheckDEC ships an update every 2 months, A every 8 months. Both last shipped on October 24, 2026.
| Parameter | CheckDEC | A |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 78 MB | 179 MB |
| Age rating | 12+ | 4+ |
| Developer | National Alliance for Drug Endangered Children | Aerion Design Labs Ltd. |
Customer experience
CheckDEC
A
In-app purchases
CheckDEC
No in-app purchases
A
- ALevel Biology Subscription7 Days trial$1.991 Month
- ALevel Biology Subscription7 Days trial$7.996 Months
- ALevel Biology Subscription7 Days trial$9.991 Year









