head to head · open source
gs-quant vs flashlight
gs-quant has 12,974 GitHub stars, 1,752 forks, 73 open issues and last shipped 2 days ago. flashlight has 1,604 stars, 48 forks, 29 open issues and last shipped 2 days ago. gs-quant leads on adoption by 709% (12,974 vs 1,604 stars). gs-quant is written in Python under Apache-2.0; flashlight is written in TypeScript under MIT. gs-quant has attracted 14% as many forks as stars, flashlight 3%. flashlight was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| gs-quant | flashlight | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 1.6K |
| License | Apache-2.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-16 | 2026-09-16 |
| Forks | ⑂ 1.8K | ⑂ 48 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick gs-quant if
- You weight community size — 13K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick flashlight if
- You want the flashlight feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and flashlight fits your workflow better
About gs-quant
GS Quant is an Apache 2.0 Python toolkit for quantitative finance, maintained by quantitative developers at Goldman Sachs, and it is intended for quants and institutional clients of the bank who build derivative pricing, trading strategy and risk management workflows on top of Goldman Sachs' risk transfer platform.
read the full gs-quant overview →
About flashlight
Flashlight is an open source Android mobile performance audit tool written in TypeScript and licensed under MIT. It is positioned as a Lighthouse for Mobile tool, and it gives Android applications a performance score by aggregating different metrics. The project lives in the Android mobile ecosystem and covers native Android apps, React Native apps, and Flutter apps.
read the full flashlight overview →
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Frequently asked questions
Is gs-quant or flashlight more popular?
gs-quant has 12,974 GitHub stars and flashlight has 1,604. gs-quant has the larger community by that measure.
Are gs-quant and flashlight free?
Both are open source. gs-quant is licensed under Apache-2.0 and flashlight under MIT. Neither carries a licence fee.
What is the difference between gs-quant and flashlight?
gs-quant is written in Python and flashlight in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, gs-quant or flashlight?
Choose gs-quant if you want the larger community (12,974 stars) or its Apache-2.0 licence terms. Choose flashlight if its feature set, stack or MIT licence fits better. Both are self-hostable.