Index.dev vs Folio3: full comparison for 2026
Quick verdict
Index.dev (4.5/5) edges ahead of Folio3 (3.9/5) overall. Index.dev is the better choice for startups that want their money back if the first month doesn't work. Folio3 is the stronger option for MLOps or vision work with a two-week trial at offshore prices. The right choice depends on your project size, budget, and required tech stack.
Index.dev vs Folio3: head-to-head summary
| Criterion | Index.dev | Folio3 |
|---|---|---|
| Founded | 2019 | 2005 |
| HQ | London, United Kingdom | San Mateo area, California, USA |
| Team size | 30,000+ network | 500–1,000 |
| Rating | 4.5 / 5 | 3.9 / 5 |
| Primary differentiator | A refundable 30-day trial on every placement, plus direct hire | Start within 48 hours plus a two-week trial |
| Pricing model | Monthly rate per engineer; direct-hire fee; 30-day refundable trial; rates on request | Monthly per engineer or team; two-week trial; rates on request |
| Min. engagement | Not published | Not published |
| Primary tech stack | Python, PyTorch, LangChain | Python, TensorFlow, PyTorch |
| Industries served | SaaS, Fintech, E-commerce, AI labs, Healthcare | Automotive, Agriculture, Retail, Healthcare, Fintech |
Index.dev vs Folio3: overview
Index.dev
Index.dev, legally Index Soft Limited, is a London talent platform that its job ads date to 2019. Its buying terms are the clearest of any network here: every placement carries a 30-day trial with a full refund if the match fails. You can contract one engineer, build a dedicated offshore team or hire someone directly. The main pool of more than 30,000 engineers sits in Latin America and Central and Eastern Europe, and a separate AI unit supplies Master's and PhD-level people for fine-tuning and retrieval work. Vetting runs through five stages with human reviewers.
Folio3
Folio3 has built software since 2005 from the San Mateo area of California, with most delivery in Pakistan. Its AI brand offers engineers within 24 to 48 hours and a two-week trial, and you can buy single engineers, project-based staffing or a dedicated team. The pool covers ML, NLP, computer vision, LLM and agent work, and one case study describes a whole MLOps team supplied to a vehicle-data company. Offshore delivery keeps costs low, at the price of limited overlap with U.S. West Coast hours.
Services and capabilities: Index.dev vs Folio3
| Capability | Index.dev | Folio3 |
|---|---|---|
| Full-time dedicated engineers | ✓ | ✓ |
| Part-time / fractional experts | ✗ | ✗ |
| Dedicated team | ✓ | ✓ |
| Trial before commitment | ✓ | ✓ |
| Published rates | ✗ | ✗ |
| Direct hire option | ✓ | ✗ |
| Subscription or output-based pricing | ✗ | ✗ |
| Nearshore time-zone overlap | ✓ | ✗ |
| LLM / GenAI engineers | ✓ | ✗ |
| MLOps | ✗ | ✓ |
| Computer vision | ✗ | ✓ |
| Data engineering | ✗ | ✗ |
Tech stack comparison: Index.dev vs Folio3
| Framework / platform | Index.dev | Folio3 |
|---|---|---|
| PyTorch | ✓ | ✓ |
| TensorFlow | N/A | ✓ |
| LangChain | ✓ | ✓ |
| Hugging Face | ✓ | N/A |
| OpenAI | ✓ | N/A |
| AWS | ✓ | ✓ |
| Azure | N/A | ✓ |
| Google Cloud | ✓ | N/A |
| Databricks | N/A | N/A |
| Kubernetes | N/A | N/A |
Pricing comparison: Index.dev vs Folio3
| Criterion | Index.dev | Folio3 |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Full-time dedicated, Dedicated team, Direct hire, Trial period | Full-time dedicated, Dedicated team, Trial period, Project delivery |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Index.dev vs Folio3
| Dimension | Index.dev | Folio3 |
|---|---|---|
| Best company size | Startup to mid-market | Mid-market to enterprise |
| Best industries | SaaS, Fintech, E-commerce | Automotive, Agriculture, Retail |
| Best use cases | Trialling a Latin American LLM engineer for a month, Hiring a PhD-level specialist to fine-tune a model | Trialling an MLOps engineer for two weeks, Buying a dedicated computer vision team |
| Typical project type | Full-time dedicated | Full-time dedicated |
Index.dev vs Folio3: pros and cons
| Index.dev | |
|---|---|
| + | A full refund in the first 30 days lowers the cost of a bad match |
| + | Contract and direct-hire routes from one provider |
| + | Talent in both U.S.-friendly and European time zones |
| - | Engineers are network members, not employees |
| - | Acceptance-rate figures are the company's own |
| - | No published monthly rates |
| Folio3 | |
|---|---|
| + | Two-week trial |
| + | Fast start |
| + | Offshore rates |
| - | Vetting not described in detail |
| - | Little overlap with U.S. West Coast hours |
| - | Headcount claims vary |
Who should choose Index.dev?
A typical fit: trialling a Latin American LLM engineer for a month.
A refundable 30-day trial on every placement, plus direct hire. Minimum engagement is not publicly disclosed. Works best with clients in SaaS, Fintech, E-commerce, AI labs, Healthcare.
Who should choose Folio3?
A typical fit: trialling an MLOps engineer for two weeks.
Start within 48 hours plus a two-week trial. Minimum engagement is not publicly disclosed. Works best with clients in Automotive, Agriculture, Retail, Healthcare, Fintech.
Decision matrix: Index.dev vs Folio3
| Your situation | Recommended choice |
|---|---|
| You want one engineer full-time on a monthly contract | Both; Index.dev rates higher overall |
| You only need a specialist a few days a week | Neither advertises part-time experts; ask about reduced hours |
| You want to test an engineer before committing | Both; Index.dev rates higher overall |
| You need a rate before the first call | Neither publishes rates; ask both for a written rate card |
| Your budget is at the lower end | Compare: Index.dev (Not published) vs Folio3 (Not published) |
| You may want to hire the engineer permanently later | Index.dev |
| You want several engineers working as one team | Folio3 |
Use case fit: Index.dev vs Folio3
| Use case | Index.dev fit | Folio3 fit | Winner |
|---|---|---|---|
| Trialling a Latin American LLM engineer for a month | Strong | Strong | Both equally |
| Hiring a PhD-level specialist to fine-tune a model | Strong | Limited | Index.dev |
| Trialling an MLOps engineer for two weeks | Strong | Strong | Both equally |
| Buying a dedicated computer vision team | Limited | Strong | Folio3 |
Verdict: Index.dev vs Folio3
Index.dev (4.5/5) is the stronger overall choice for most AI Staff Augmentation projects. A refundable 30-day trial on every placement, plus direct hire.
Folio3 (3.9/5) is worth a look if you need buying a dedicated computer vision team. If your situation matches that, Folio3 is a competitive option.
Related comparisons
Index.dev vs Folio3 FAQ
Is Index.dev better than Folio3?
Index.dev (4.5/5) scores higher overall, but "better" depends on your use case. Index.dev's strongest advantage: a full refund in the first 30 days lowers the cost of a bad match. Folio3's strongest advantage: two-week trial.
How do Index.dev and Folio3 differ in pricing?
Index.dev uses monthly rate per engineer; direct-hire fee; 30-day refundable trial; rates on request pricing. Folio3 uses monthly per engineer or team; two-week trial; rates on request pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Index.dev or Folio3?
Folio3 is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each provider before shortlisting.
What are the main differences between Index.dev and Folio3?
Index.dev's primary differentiator is: a refundable 30-day trial on every placement, plus direct hire. Folio3's primary differentiator is: start within 48 hours plus a two-week trial. They also differ in team size (30,000+ network vs 500–1,000), minimum engagement (Not published vs Not published), and primary industries served (SaaS, Fintech vs Automotive, Agriculture).
Verify all details directly with each provider before making a decision.