Comparison

Wave vs ZoneLink

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Wave

This app helps seafarers manage their maritime careers. Log sea service, store certificates, and track career progression. Export records as PDFs and access data offline.

Highlights
  • Sea service tracking
  • Certificate management
  • Career progression monitoring
  • PDF export and sharing
  • Offline access
  • Secure data storage
Features
Read full description

Wave is the all-in-one maritime career companion for seafarers. Track your sea service records, manage certificates, and monitor your career progression — all from your pocket. Key Features: • Sea Service Tracking — Log your service records with vessel details, ranks, and dates. Keep an accurate, organized history of your time at sea. • Certificate Management — Store and manage your maritime certificates in one secure place. Never lose track of important documents again. • Career Progression — Set your target rank and vessel type, track required sea time, and see exactly where you stand on your career path. • PDF Export & Sharing — Export your complete sea service records as professional PDF documents, ready to share with employers or maritime authorities. • Offline Access — Works without an internet connection. Your data syncs automatically when you're back online, perfect for life at sea. • Secure & Private — Your maritime career data is protected with secure authentication and encrypted storage. Whether you're a cadet logging your first voyage or an experienced officer managing years of service history, Wave keeps your maritime career organized and accessible. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ZoneLink

Read full description

The visual, sleep-aware time-zone planner that follows your travels — free to use, no ads. ZoneLink shows every zone you care about on one scrubbable ribbon — colored by sleep, work, and awake-but-off-hours — so you can tell at a glance whether a time works for everyone, without doing the math yourself. FREE, FOREVER • Live scrubbable time-zone slider — up to 5 zones • Sleep / work / awake banding, automatic DST alerts • Ranked "best times to meet" — no more scrubbing to find a window • One-tap shareable overlap card, so the invite does the explaining for you • Jet lag tracking on your own zone — auto-detect or manual, no location data used • Biometric app lock (fingerprint or Face ID) — keep your boards private, works offline • No ads, ever ZONELINK PRO • Unlimited zones on your workbench • Unlimited saved Favorites in History — keep every group you coordinate with, color-coded and renamed your way • One-time Lifetime purchase or an Annual plan — your choice, no forced subscription New accounts also get 14 days of full Pro access (plus a 2-day grace period) to try everything unlimited before deciding. Built for remote teams, freelancers with international clients, long-distance relationships, and frequent travelers who are tired of doing time-zone math in their head. Subscriptions (Annual plan) auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://privacy.headfirstservices.com/privacy.html

Screenshots

Wave4 screens
ZoneLink4 screens

Verdict

The call

The clearest difference is in-app purchases: ZoneLink at none against Wave's 2. ZoneLink also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 15.5). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Wave sells 2 in-app purchases, starting at $4.99 per month. ZoneLink asks for nothing beyond the download.

UpkeepUpdate frequency

Wave ships an update every 3 weeks, ZoneLink every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Wave versus ZoneLink: the parameters behind the verdict, then further details
ParameterWaveZoneLink
PriceFreeFree
Rating5.0 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.513.0 — better
Further details — not scored
Size57 MB44 MB
Age rating12+4+
DeveloperBUILD BY TWO & ONE LIMITEDGregory Taylor

In-app purchases

2 purchases

Wave

Subscriptions2
  • Wave Pro Monthly1 Month trial$4.991 Month
  • Wave Pro Yearly1 Month trial$49.991 Year
None

ZoneLink

No in-app purchases

Questions

Is Wave free?
Wave is free to download, with in-app purchases available.
Is ZoneLink free?
ZoneLink is free to download, with no in-app purchases.
Do Wave or ZoneLink have ads?
Neither Wave nor ZoneLink shows ads.
Which is updated more often, Wave or ZoneLink?
Wave ships an update every 3 weeks, and ZoneLink every 4 days. Most recently, Wave was updated on November 5, 2026 and ZoneLink on October 31, 2026.

Other comparisons