Your privacy, in plain language
College Math Placement Prep (shown as Math Placement on your Home Screen) is developed by Dilum De Silva, an individual developer in Lorain, Ohio, USA. This policy explains how the app handles your information.
1. What stays on your device
Your test choice, diagnostic responses, practice and exam history, entered answers and graphs, study plan, and progress are saved locally. We do not operate an account or progress-sync service that uploads these records.
The app does not ask you for your name or email address and does not access your contacts or location. Answers you type and graph entries are not sent as analytics.
2. Anonymous practice analytics
We use TelemetryDeck to understand which questions are helpful or need improvement. Sharing is on by default for US-device region settings and can be turned off at any time.
When sharing is enabled, anonymous practice events can include:
- The question identifier, template identifier when applicable, topic, and skill.
- The answer format and whether an answer was correct or incorrect. For a wrong multiple-choice answer, the selected option letter may be included; typed answers and graph entries are never included.
- Rounded time spent on a question and whether its worked solution was opened.
- The selected placement test, activity mode (diagnostic, practice, review, or exam), and app version.
- When a diagnostic or exam is completed, a score band and per-topic counts, without the actual answers.
- An anonymous device or installation identifier hashed by TelemetryDeck, along with the service's event timestamp and random session identifier. We do not supply a name, email, or app account as that identifier.
Analytics does not include your name, email, typed responses, location, contacts, device name, or an app account. We use these statistics only to improve questions and the learning experience, not for advertising or tracking you across other companies' apps or websites.
TelemetryDeck processes this anonymous data for us. We do not sell it or provide it to advertisers, data brokers, or other companies for their independent use. Learn more in TelemetryDeck's privacy policy and its privacy FAQ.
TelemetryDeck states that it does not retain IP addresses. As with any internet connection, a receiving service necessarily handles a source IP to deliver the request; the app does not derive or send IP-based location information.
3. Your analytics choice
Open Settings and turn off Share anonymous practice data. This stops further analytics sharing without affecting questions, solutions, exams, purchases, or saved progress.
When offline, analytics may be queued locally for later delivery. Turning sharing off discards pending analytics and prevents older queued events from being sent later. It cannot recall events already received by TelemetryDeck.
4. Purchases
Apple handles the optional Unlimited Practice purchase and purchase restoration. The app uses Apple's purchase status to provide the unlock. We do not receive your payment-card details or billing information from Apple.
No separate app sign-in is required. Apple may require its normal App Store purchase authentication. See Apple's privacy policy for Apple's handling of purchases.
5. If you contact support
If you choose to email dilum0007@gmail.com, we receive your email address and the contents of your message so we can respond. This information is used for support, not added to practice analytics or used for advertising. Please avoid sending sensitive information or student records.
6. Retention and removal
Local study data remains on your device until you remove it. Deleting the app removes its local data from that device. Restoring a purchase restores the unlock, not a copy of your study history from us.
Anonymous analytics already sent is retained under TelemetryDeck's retention practices. Turning sharing off stops further collection but does not delete previously sent anonymous events. Because we do not connect those events to your name or email, we cannot look up an individual student's events by either.
Support correspondence is kept as needed to respond to and resolve your request.
7. Children
The app is intended for students preparing for college math placement and is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided personal information through a support message, please contact us.
8. Changes and contact
We may update this policy as the app changes. The current policy and its effective date will be posted on this page.
Dilum De Silva
Lorain, Ohio, USA
dilum0007@gmail.com
For help using the app, visit Support.