★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Source check: Changeflow (Trackly) checked August 4, 2026
Tool Comparison
Changeflow (Trackly) vs MarineTraffic
Start here
Changeflow (Trackly)
Free • From $1188/yr · Web · API · Other
- You care about news, regulatory filings monitoring, and insider data, things MarineTraffic doesn't offer
Pick MarineTraffic instead if
MarineTraffic
Free • Paid plans available · Web · Mobile · API
- You do a lot of your research from your phone
- You care about data visualizations and shipping & trade, things Changeflow (Trackly) doesn't offer
Skip both if: Neither one clicks with how you research; there are strong third options.
See alternativesOutbound links may include affiliate or sponsor codes.
Our take
The bottom line
Changeflow (Trackly) and MarineTraffic cover a lot of the same ground (2 shared categories, alerts and APIs & data feeds), so for the basics you won't go far wrong with either. Changeflow (Trackly) simply does more: 10 categories to MarineTraffic's 4, including news, regulatory filings monitoring, and insider data. MarineTraffic counters by being completely free.
What readers say
Changeflow (Trackly)
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MarineTraffic
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Key differences at a glance
- Mobile app
- MarineTraffic
- Free trial
- Changeflow (Trackly)30 days
- Broader coverage
- Changeflow (Trackly)10 vs 4 categories
- Asset coverage
- Changeflow (Trackly)Adds stocks
- Free plan
- Both
See for yourself
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.ShowHide
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free • From $1188/yr | Free • Paid plans available |
Free tier | Yes | Yes |
Free trial | 30 days | — |
Plan limits | 17 limits: Free: sources: 3, Professional: sources: 100 +15 more | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | Yes |
API access | Yes | Yes |
Broker sync | — | No |
Integrations | Slack, Microsoft Teams +5 more | — |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Institutional Investors, Analysts +3 more | — |
Categories covered | 10 | 4 |
Regions | North America, Europe, APAC | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | Latency: Real-time and Granularity: Minute and EOD | Latency: Streaming |
Capabilities | AI summaries: Filings and News | — |
Security | Encryption in transit | — |
| Try it | Visit Changeflow (Trackly) | Visit MarineTraffic |
Where each one shines
What Changeflow (Trackly) and MarineTraffic each do best.ShowHide
Where each one shines
What Changeflow (Trackly) and MarineTraffic each do best.What Changeflow (Trackly) does best
- Support for setting up monitoring by pasting a URL and describing the changes you care about in natural language.
- AI summaries and relevance filtering to reduce noisy website-change alerts before an analyst reviews the source.
- Monitoring SEC filings, corporate disclosures, IR pages, regulator pages, policies, PDFs, RSS feeds, JSON, CSV, and other online sources.
- Tracking common EDGAR filing types such as 8-K, 10-K, 10-Q, Form 4, 13F, proxy statements, and S-1 pages where configured.
- Views for reviewing changes through dashboard alerts, email notifications, visual diffs, interactive change history, and saved source versions.
What MarineTraffic does best
- Tracking vessels on a live AIS map with filters for ship type, capacity, status, destination, and custom smart filters.
- Tools for creating notifications for port calls, area entries, speed or course changes, drifting, ETA updates, draught updates, proximity events, and AIS coverage changes.
- Email, mobile push, and notification archives to monitor maritime events are available without constantly watching the map.
- Views for reviewing Past Track playback, with history depth varying by plan from limited free access to deeper Enterprise history.
- Route-forecast tools for path previews, ETA detail, and speed detail where the plan supports them.
Every detail we compared
Every tracked attribute for Changeflow (Trackly) and MarineTraffic, side by side.ShowHide
Every detail we compared
Every tracked attribute for Changeflow (Trackly) and MarineTraffic, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksOther | Other |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Institutional InvestorsAnalystsQuants/DevelopersAsset ManagersHedge Funds | Not specified |
Regions | North AmericaEuropeAPAC | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | 4 countries | Not specified |
| Data | ||
Data freshness | Real-time | Streaming |
Data granularity | MinuteEOD | Not specified |
| Access & integrations | ||
API protocols | REST | REST |
API auth & delivery | Auth: APIKeyWebhooksDocs | Auth: APIKey |
Import methods | ManualCSV | CSVManual |
Integrations | SlackMicrosoft TeamsDiscordZapierMake (Integromat)n8nRSS readers (e.g., Feedly, Inoreader) | Not specified |
Export formats | CSVJSON | CSV |
| Plans & trust | ||
Security & compliance | Encryption in transit | Not specified |
Capability signals | AI summaries: Filings and News | Not specified |
Vendor & support | Changeflow Limited (trading as Trackly)Country: United KingdomSupport: Email, Chat, and Phone | Kpler (MarineTraffic)Support: Email |
Curation ratings | Not specified | Methodology 3/5Reliability 4/5UX 4/5 |
Green tags are exclusive to that tool in this comparison.
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.ShowHide
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.| Tier | ||
|---|---|---|
| Free plan | Freesources: 3 | Free |
| Entry paid plan | $1188/yr≈ $99/mo“Professional”sources: 100 · users: 2 · +6 more | Subscription“Basic” |
| Tier 2 | $2988/yr≈ $249/mo“Business”sources: 500 · users: 5 · +5 more | Subscription“Essential” |
| Top plan | — | Subscription“Enterprise” |
| Custom / enterprise | Contact sales“Enterprise”minimum check frequency: Every 10 minutes | — |
| Free trial | 30 days | — |
Questions we keep getting
What's the difference between Changeflow (Trackly) and MarineTraffic?
Changeflow (Trackly) leans toward alerts, news, and regulatory filings monitoring, while MarineTraffic puts more weight on data visualizations, APIs & data feeds, and shipping & trade. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do Changeflow (Trackly) and MarineTraffic cost?
Good news: both Changeflow (Trackly) and MarineTraffic have free plans, so you can run them side by side and only pay if you hit a wall.
Can I use Changeflow (Trackly) or MarineTraffic on my phone?
MarineTraffic lists a dedicated mobile app, so it travels better. Changeflow (Trackly) doesn't list a dedicated mobile app; its documented access is web, API, and other.
Do Changeflow (Trackly) and MarineTraffic have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose Changeflow (Trackly) or MarineTraffic?
It depends on what you're after. Pick Changeflow (Trackly) if news and regulatory filings monitoring matter to you; go with MarineTraffic if you'd rather have data visualizations and shipping & trade. And if you only need the basics both share, let price decide.
What asset classes do Changeflow (Trackly) and MarineTraffic cover?
Both cover other. Changeflow (Trackly) also handles stocks.
Do Changeflow (Trackly) and MarineTraffic offer real-time data?
Yes, both serve real-time market data, so either works when timing matters.
Can I export data from Changeflow (Trackly) and MarineTraffic?
Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.
Keep researching
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.