VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
Changeflow (Trackly) vs SEC API (sec-api.io)
Pick Changeflow (Trackly) if
Changeflow (Trackly)
Free • From $1188/yr · Web · API · Other
- You want alerts, news, and transcripts.
Pick SEC API (sec-api.io) if
SEC API (sec-api.io)
Free • From $55/mo · Web · API
- You want the cheaper way in: plans start at $55/mo instead of $99/mo
- You want financials, management compensation, and IPO.
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 SEC API (sec-api.io) cover a lot of the same ground (4 shared categories, including regulatory filings monitoring, insider data, and institutional ownership), so for the basics you won't go far wrong with either. Changeflow (Trackly) simply does more: 10 categories to SEC API (sec-api.io)'s 7, including alerts, news, and transcripts. SEC API (sec-api.io) counters by starting cheaper at $55/mo.
What readers say
Changeflow (Trackly)
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SEC API (sec-api.io)
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Key differences at a glance
- Cheaper paid plan
- SEC API (sec-api.io)$55/mo vs $99/mo
- Free trial
- Changeflow (Trackly)30 days
- Broader coverage
- Changeflow (Trackly)10 vs 7 categories
- Global coverage
- Changeflow (Trackly)
- 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 • From $55/mo |
Free tier | Yes | Yes |
Free trial | 30 days | — |
Plan limits | 17 limits: Free: sources: 3, Professional: sources: 100 +15 more | 3 limits: Free Tier: api calls: 100, Personal & Startups: query api rate limit: 20 requests/second/API key +1 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
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 | 7 |
Regions | North America, Europe, APAC | North America |
| Data & capabilities | ||
Data quality | Latency: Real-time and Granularity: Minute and EOD | Latency: Real-time |
Capabilities | AI summaries: Filings and News | — |
Security | Encryption in transit | — |
| Try it | Visit Changeflow (Trackly) | Visit SEC API (sec-api.io) |
Where each one shines
What Changeflow (Trackly) and SEC API (sec-api.io) each do best.ShowHide
Where each one shines
What Changeflow (Trackly) and SEC API (sec-api.io) each do best.What Changeflow (Trackly) does best
- Paste a URL and describe the changes that matter in plain English.
- Use AI summaries and relevance filters to narrow website-change alerts before reviewing the source.
- Monitor SEC filings, corporate disclosures, IR pages, regulator pages, policies, PDFs, RSS feeds, JSON, CSV, and other online sources.
- Track common EDGAR filing types when their pages or feeds are configured as sources.
- Review alerts, visual diffs, change history, and saved source versions in the dashboard or email.
What SEC API (sec-api.io) does best
- Search tools across SEC filings through query and full-text APIs covering all EDGAR form types and historical filings back to 1993.
- Real-time WebSocket filing streams when new SEC filings need to trigger alerts, workflows, or downstream processing quickly.
- Convert XBRL filings to standardized JSON financial statements for income statement, balance sheet, cash flow, and US GAAP line-item workflows.
- Extract clean filing sections such as MD&A, Risk Factors, and other 10-K, 10-Q, or 8-K sections for research or AI pipelines.
- Access to specialized APIs for Forms 3/4/5, 13F, 13D/G, Form 144, ADV, S-1, 424B4, Form C, Form D, Reg A, N-PORT, N-PX, and N-CEN data.
Every detail we compared
Every tracked attribute for Changeflow (Trackly) and SEC API (sec-api.io), side by side.ShowHide
Every detail we compared
Every tracked attribute for Changeflow (Trackly) and SEC API (sec-api.io), side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksOther | StocksETFsMutual FundsFunds |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Institutional InvestorsAnalystsQuants/DevelopersAsset ManagersHedge Funds | Not specified |
Regions | North AmericaEuropeAPAC | North America |
Coverage details | 4 countries | Countries: USIdentifiers: Ticker and CUSIP |
| Data | ||
Data freshness | Real-time | Real-time |
Data granularity | MinuteEOD | Not specified |
| Access & integrations | ||
API protocols | REST | RESTWebSocket |
API auth & delivery | Auth: APIKeyWebhooksDocs | Auth: APIKeySDKs: Python and TS |
Import methods | ManualCSV | Not specified |
Integrations | SlackMicrosoft TeamsDiscordZapierMake (Integromat)n8nRSS readers (e.g., Feedly, Inoreader) | Not specified |
Export formats | CSVJSON | JSONPDF |
| Plans & trust | ||
Security & compliance | Encryption in transit | Not specified |
Capability signals | AI summaries: Filings and News | Not specified |
Vendor & support | Changeflow LimitedCountry: United KingdomSupport: Email, Chat, and Phone | Data2Value GmbHSupport: Email |
Curation ratings | Not specified | Methodology 4/5Reliability 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“Free Tier”api calls: 100 |
| Entry paid plan | $1188/yr≈ $99/mo“Professional”sources: 100 · users: 2 · +6 more | $55/mo“Personal & Startups”query api rate limit: 20 requests/second/API key |
| Top plan | $2988/yr≈ $249/mo“Business”sources: 500 · users: 5 · +5 more | $239/mo“Business (Internal Use)”query api rate limit: 40 requests/second/API key |
| Custom / enterprise | Contact sales“Enterprise”minimum check frequency: Every 10 minutes | Contact sales“Enterprise & Institutions” |
| Free trial | 30 days | — |
Questions we keep getting
What's the difference between Changeflow (Trackly) and SEC API (sec-api.io)?
Changeflow (Trackly) leans toward alerts, news, and regulatory filings monitoring, while SEC API (sec-api.io) puts more weight on APIs & data feeds, regulatory filings monitoring, and insider data. They overlap in 4 categories, so for most people it comes down to workflow preference and price.
How much do Changeflow (Trackly) and SEC API (sec-api.io) cost?
Good news: both Changeflow (Trackly) and SEC API (sec-api.io) have free plans, so you can run them side by side and only pay if you hit a wall.
Do Changeflow (Trackly) and SEC API (sec-api.io) 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 SEC API (sec-api.io)?
It depends on what you're after. Pick Changeflow (Trackly) if alerts and news matter to you; go with SEC API (sec-api.io) if you'd rather have financials and management compensation. And if you only need the basics both share, let price decide.
What asset classes do Changeflow (Trackly) and SEC API (sec-api.io) cover?
Both cover stocks. Changeflow (Trackly) also handles other. SEC API (sec-api.io) adds ETFs, mutual funds, and funds on top.
Do Changeflow (Trackly) and SEC API (sec-api.io) offer real-time data?
Yes, both serve real-time market data, so either works when timing matters.
Which covers international markets: Changeflow (Trackly) or SEC API (sec-api.io)?
Changeflow (Trackly) has documented international coverage (North America, Europe, and APAC), so it's the safer bet if you hold non-US stocks. SEC API (sec-api.io) is more region-specific, mainly North America.
Can I export data from Changeflow (Trackly) and SEC API (sec-api.io)?
Changeflow (Trackly) exports to CSV. SEC API (sec-api.io) is stingier about getting data out.
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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.