Relief Central
Research answer
What AppTrendKit can say about Relief Central today
Relief Central has no estimate-backed download or gross-consumer-spend figure that meets the public evidence contract yet.
Observed App Store metadata, chart positions, and history are shown below. Missing, non-finite, undefined-currency, or undefined-metric evidence stays missing rather than becoming zero.
Performance
Downloads, revenue and chart history
Estimates for the last 7D. Chart positions come from the App Store; downloads and revenue are AppTrendKit estimates, shown as a size band (for example 10K–50K) with a confidence level.
Estimated downloads · 30D
Upper limitUnder 200
Below the top 100 in Medical (CA)
The app is not in its category's top 100, so it has less than the app ranked #100 there. We show this limit until we have enough data for an estimate.
Estimated App Store gross consumer spend · 30D
Upper limitUnder $1K
Below the top 100 in Medical (CA)
The app is not in its category's top 100, so it has less than the app ranked #100 there. We show this limit until we have enough data for an estimate.
History
Collected daily performance
No daily history yet.
Rank history
Chart positions
Lower rank is better. Only collected observations are shown.
Coverage note
What the ranks mean
A missing rank is not treated as zero downloads or zero revenue. Apple chart feeds are bounded and may return censored or not-ranked observations outside the visible chart depth.
Read the methodStorefront mix
Top countries by estimated contribution · 7D
Country figures cover the days we collected in each country, so they don't add up to the worldwide estimate. Each country shows when it was last updated.
Monetization
How the app makes money
These are listing and product observations. They are not company revenue, subscriber counts, or advertising revenue.
App details
Store metadata
- Version
- 1.29
- Released
- Feb 4, 2010
- Last updated
- May 13, 2026
- Content rating
- 12+
- Default storefront
- CA
Public IAP observations
Validated in-app purchase prices
Only persisted rows with an explicit public publication boundary are shown. Missing price, currency, country, or date values stay unknown.
Listing detail
What the store says
Relief Central is a free mobile and web resource developed by staff and friends of Unbound Medicine. It includes the latest versions of The World Factbook from the CIA, CDC Health Information for International Travel (The Yellow Book), the Field Operations Guide from USAID, Prime PubMed Search, and Relief News from the Red Cross, United Nations, US Centers for Disease Control, CDC, FEMA, and more. THE WORLD FACTBOOK The World Factbook from the US Central Intelligence Agency (CIA) contains detailed information on the history, people, government, economy, geography, communications, transportation, military, and transnational issues for 266 world countries and territories. CDC YELLOW BOOK (Health Information for International Travel) The Yellow Book presents advice on any travel health issue including vaccinations, essential trip planning and safety tips, prevention of an expanded list of travel-related infectious diseases, altitude illness, motion sickness, sunburn, medical tourism, and much more. USAID FIELD OPERATIONS GUIDE The Field Operations Guide from USAID delivers disaster assessment and response information and includes chapters and appendices ranging from information on populations at risk to commonly used acronyms, all arranged in an outline format. RELIEF NEWS Relief News puts the latest news at your fingertips with a collection of RSS feeds from trusted non-profit groups, international organizations, and government agencies. Feeds are from the Red Cross, United Nations, US Centers for Disease Control and Prevention (CDC), US Federal Emergency Management Agency (FEMA), ReliefWeb, and more. Prime PubMed Search Prime provides citations and abstracts from the latest issues of trusted disaster relief journals. Link to the fully-integrated Prime service where you can find related articles and view full-text articles provided by the journal publisher. FEATURES: • Cross Links for fast navigation between resources • Personalized favorites • Highlight and note-taking • Citations and abstracts from disaster journals • Advanced Search helps to find topics fast • Recently Viewed Unbound Privacy Policy: www.unboundmedicine.com/privacy Unbound Terms of Use: https://www.unboundmedicine.com/end_user_license_agreement
Publisher websiteStore creative
Screenshots
Competitive set
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How we estimate
Where every number comes from
App details: Apple iTunes Search API, updated Sep 28, 2026, 10:25 PM.
Rankings: collected chart positions from the listed storefront. Missing ranks are not zeros.
Economics: downloads and gross store consumer spend are estimated, not official Apple or publisher figures.
Model: Lineage not exposed by this aggregate.
Confidence: —; intervals widen when evidence or history is limited.
Last updated: Sep 28, 2026, 10:25 PM.
See how AppTrendKit separates observations, estimates, coverage, and confidence.
Open methodology