# NVS Tsunami Evacuation vs CertLok

The clearest difference is rating: CertLok at 5.0 against NVS Tsunami Evacuation's 3.5. CertLok also leads on update cadence (every 3 weeks vs every 3 months). NVS Tsunami Evacuation's advantage is ratings volume (19 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CertLok holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: NVS Tsunami Evacuation has 19 ratings behind it against 1, so its average is the more settled of the two.

NVS Tsunami Evacuation ships an update every 3 months, CertLok every 3 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | NVS Tsunami Evacuation | CertLok |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (19 ratings)](https://appshunter.io/ios/app/nvs-tsunami-evacuation/id478984841/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/certlok/id6751294459/reviews)** |
| Number of ratings | **19** | 1 |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 124 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [NANOOS-IOOSASSOCIATION](https://appshunter.io/developer/1792959921) | [Risk Data Analytics, Inc.](https://appshunter.io/developer/1805567986) |

## What reviewers say

### NVS Tsunami Evacuation

[App page](https://appshunter.io/ios/app/nvs-tsunami-evacuation/id478984841)

This app displays tsunami evacuation zones along the Oregon and Washington coast. It allows users to map their home, work, or school to see if they are in a hazard zone and plan evacuation routes. It also shows critical locations like schools and government buildings.

**Highlights:** Tsunami evacuation zone maps, Location mapping (home, work, school), GPS and address-based route planning, Critical facility locations, Tsunami warning bulletins, State agency data

**Features:** macOS Compatibility

**In-app purchases:** none


### CertLok

[App page](https://appshunter.io/ios/app/certlok/id6751294459)

This free digital credential wallet allows skilled workers to store, manage, and share their certifications and work history. It automatically notifies users of expiring credentials and helps build a comprehensive work log. Employers can easily verify qualifications.

**Highlights:** Store and manage credentials, Share certifications with employers, Verify credentials, Store job documents, Automatic expiry notifications, Build and share work history, Log book functionality

**In-app purchases:** none


## Frequently asked questions

### Is NVS Tsunami Evacuation free?

NVS Tsunami Evacuation is free to download, with no in-app purchases.

### Is CertLok free?

CertLok is free to download, with no in-app purchases.

### Which has better reviews, NVS Tsunami Evacuation or CertLok?

CertLok is rated higher. NVS Tsunami Evacuation averages 3.5 out of 5 from 19 ratings, while CertLok averages 5.0 from 1 ratings.

### Do NVS Tsunami Evacuation or CertLok have ads?

Neither NVS Tsunami Evacuation nor CertLok shows ads.

### Which is updated more often, NVS Tsunami Evacuation or CertLok?

NVS Tsunami Evacuation ships an update every 3 months, and CertLok every 3 weeks. Most recently, NVS Tsunami Evacuation was updated on November 1, 2026 and CertLok on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*