EVM Assessor vs Coverage Trackr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EVM Assessor
This tool allows designated assessors to download, complete, and submit questionnaires for vaccine management assessments at health facilities. It streamlines data collection and provides access to questionnaire scores. An EVM account is required to create assessments.
- Download assigned questionnaires
- Collect data at health facilities
- View questionnaire scores
- Upload completed questionnaires
- Requires EVM account for assessment creation
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The data-collection tool for Effective Vaccine Management (EVM) assessments. EVM assessors can use this app to: - download questionnaires they have been assigned - collect questionnaire data at health facilities - view questionnaire scores - upload completed questionnaires To create an EVM assessment, you will need an EVM account. Once you have one, you can log in to the EVM website, complete the EVM setup and create assessments for your facilities. For instructions on how to create your EVM account, please visit the EVM website: https://extranet.who.int/evm2/web/Public For more guidance on how to use the EVM Assessor app to conduct health facility assessments: https://www.technet-21.org/en/hot-topics-items/380-supply-chain-and-logistics/evm2/15266-evm2
Coverage Trackr
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Designed for field operations in hard-to-reach and low-connectivity areas, this mobile application enables efficient community surveys, enumeration, validation, and service delivery, all while working fully offline. Field workers can capture household and individual data during enumeration, validate collected information during verification visits, and seamlessly sync data online once an internet connection becomes available. The app ensures data integrity, continuity, and reliability even in the most remote environments. Key Features Offline-First Data Collection Conduct surveys, enumeration, and validation without internet access. Automatic Online Sync Securely sync all collected data when connectivity is restored. Household Mapping Add, view, and manage households directly on an interactive map during enumeration and validation. Validation & Verification Workflow Review and validate previously captured data to ensure accuracy and completeness. Service Delivery Tracking Support and track community services such as vaccination, outreach programs, and social interventions. Local Submission History Access a complete local history of all submissions for review and auditing, even offline. Designed for Remote Communities Optimized for low bandwidth, unstable networks, and field use. Who It’s For Government and NGO field officers Enumerators and survey teams Health workers and vaccination teams Development and humanitarian organizations This application helps teams collect reliable data, visualize households geographically, validate records, and deliver essential services, ensuring no community is left behind due to connectivity challenges.
Screenshots
Verdict
EVM Assessor and Coverage Trackr are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
EVM Assessor ships an update every 3 weeks, Coverage Trackr monthly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | EVM Assessor | Coverage Trackr |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 94 MB | 65 MB |
| Age rating | 4+ | 17+ |
| Developer | World Health Organization | Texis HQ |
In-app purchases
EVM Assessor
No in-app purchases
Coverage Trackr
No in-app purchases








