★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Source check: Danelfin checked August 4, 2026
Tool Comparison
Danelfin vs Firefly III
Pick Danelfin if
Danelfin
Free • From €264/yr · Web · API
- You care about stock ideas, screeners, and watchlist, things Firefly III doesn't offer
Pick Firefly III if
Firefly III
Free · Web · API
- You care about webhooks and other, things Danelfin 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
Danelfin and Firefly III cover a lot of the same ground (2 shared categories, portfolio and APIs & data feeds), so for the basics you won't go far wrong with either. Danelfin simply does more: 8 categories to Firefly III's 4, including stock ideas, screeners, and watchlist. Firefly III counters by being completely free.
What readers say
Danelfin
Vote once to reveal the community verdict.
Firefly III
Vote once to reveal the community verdict.
Key differences at a glance
- Broader coverage
- Danelfin8 vs 4 categories
- Free trial
- Danelfin14 days
- 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 €264/yr | Free |
Free tier | Yes | Yes |
Free trial | 14 days | — |
Plan limits | 12 limits: Plus (Web Annual): portfolios: 3 portfolios, 20 stocks/ETFs per portfolio, Pro (Web Annual): portfolios: 10 portfolios, 50 stocks/ETFs per portfolio +10 more | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | No | No |
Integrations | MCP Server | Salt Edge, GoCardless +2 more |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | — |
Categories covered | 8 | 4 |
Regions | North America, Europe | — |
| Data & capabilities | ||
Data quality | Latency: End of Day and Granularity: EOD | — |
Capabilities | Universe builder | — |
| Try it | Visit Danelfin | Visit Firefly III |
Where each one shines
What Danelfin and Firefly III each do best.ShowHide
Where each one shines
What Danelfin and Firefly III each do best.What Danelfin does best
- Rank U.S.-listed stocks, ETFs, and major European stocks with Danelfin AI Scores designed to estimate three-month market-outperformance probability.
- Screening for ideas by asset type, ticker, sector, industry, AI Score, buy or sell signals, trade ideas, and other plan-gated ranking filters.
- Views for reviewing stock and ETF pages with AI Score context, historical score behavior, rankings, ratings, and supporting technical, fundamental, and sentiment inputs.
- Curated top lists, thematic lists, sector views, industry views, and the daily Top 10 stocks newsletter for structured idea discovery.
- Monitoring portfolios with score-upgrade and score-downgrade alerts, with portfolio count and holding limits increasing by plan.
What Firefly III does best
- Self-host a personal finance ledger under the AGPLv3 open-source license rather than using a hosted budgeting app.
- Tracking accounts and transactions with double-entry bookkeeping, budgets, categories, tags, recurring transactions, subscriptions, piggy banks, rules, and reporting.
- The JSON REST API with OAuth2, personal access tokens, and a full OpenAPI specification for dashboards, automations, and personal analytics.
- Optional event webhooks for transaction create, update, and delete events when enabled through environment configuration.
- Import support for transaction data through the separate Firefly III Data Importer, CSV and CAMT.053 files, and optional providers such as Salt Edge, GoCardless, and SimpleFIN.
Every detail we compared
Every tracked attribute for Danelfin and Firefly III, side by side.ShowHide
Every detail we compared
Every tracked attribute for Danelfin and Firefly III, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | Other |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | North AmericaEurope | Not specified |
Coverage details | Identifiers: Ticker | Not specified |
| Data | ||
Data freshness | End of Day | Not specified |
Data granularity | EOD | Not specified |
| Access & integrations | ||
API protocols | REST | REST |
API auth & delivery | Auth: APIKey | Auth: OAuth2 and APIKeyWebhooks |
Import methods | Manual | CSVManual |
Integrations | MCP Server | Salt EdgeGoCardlessSimpleFINSlack |
Export formats | CSVJSON | CSV |
| Plans & trust | ||
Capability signals | Universe builder | Not specified |
Vendor & support | Danelfin Technologies, S.L.Country: SpainSupport: Email | Firefly III (open-source project)Support: Email |
Curation ratings | Methodology 4/5Reliability 4/5UX 4/5 | 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 | Free“Free (Web)” | Free |
| Entry paid plan | €264/yr≈ $22/mo“Plus (Web Annual)”portfolios: 3 portfolios, 20 stocks/ETFs per portfolio | — |
| Tier 2 | $624/yr≈ $52/mo“API Basic (Annual)”calls: 2,500/month · rate limit: 60/minute | — |
| Tier 3 | €708/yr≈ $59/mo“Pro (Web Annual)”portfolios: 10 portfolios, 50 stocks/ETFs per portfolio | — |
| Tier 4 | €1608/yr≈ $134/mo“Elite (Web Annual)”api: API Expert included · portfolios: Unlimited | — |
| Tier 5 | $1788/yr≈ $149/mo“API Expert (Annual)”calls: 10,000/month · rate limit: 120/minute | — |
| Top plan | $5388/yr≈ $449/mo“API Max (Annual)”calls: 50,000/month · rate limit: 180/minute | — |
| Free trial | 14 days | — |
Questions we keep getting
What's the difference between Danelfin and Firefly III?
Danelfin leans toward stock ideas, screeners, and portfolio, while Firefly III puts more weight on portfolio, APIs & data feeds, and webhooks. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do Danelfin and Firefly III cost?
Good news: both Danelfin and Firefly III have free plans, so you can run them side by side and only pay if you hit a wall.
Do Danelfin and Firefly III have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose Danelfin or Firefly III?
It depends on what you're after. Pick Danelfin if stock ideas and screeners matter to you; go with Firefly III if you'd rather have webhooks and other. And if you only need the basics both share, let price decide.
What asset classes do Danelfin and Firefly III cover?
Danelfin covers stocks and ETFs. Firefly III covers other.
Can I export data from Danelfin and Firefly III?
Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.
Which has a better stock screener: Danelfin or Firefly III?
Danelfin has a stock screener for surfacing ideas; Firefly III doesn't, and focuses its energy elsewhere.
Can I track my portfolio with Danelfin or Firefly III?
Yes, both do portfolio tracking: holdings, performance, and allocation in one place.
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.