Comparison
Appen vs TELUS International AI: which fits Indian language data?
A straight comparison of Appen and TELUS International AI for Indian-language AI data work, written from a procurement point of view rather than a marketing one.

- Appen
- Global multi-market programmes where per-language depth matters less than scale.
- TELUS International AI
- Enterprises already contracting through a global vendor list.
- Shared gap
- Depth in Indian dialects and studio recruitment
- Decision driver
- Scale versus per-language depth
Side by side
| Appen | TELUS International AI | |
|---|---|---|
| Positioning | Large global crowd platform covering search relevance, annotation and speech. | Enterprise data-services arm of a large BPO group, formerly Lionbridge AI. |
| Main strength | Enormous contributor pool and mature tooling for high-volume, low-complexity tasks. | Procurement-friendly, broad language coverage, established compliance posture. |
| Gap for Indian data | Indian-language work is routed through a general crowd, so dialect quotas and native review depth are hard to guarantee. | Layered account structure means longer cycles for a single-language Indian corpus. |
| Best fit | Global multi-market programmes where per-language depth matters less than scale. | Enterprises already contracting through a global vendor list. |
When Appen is the right call
Large global crowd platform covering search relevance, annotation and speech.
Choose them when global multi-market programmes where per-language depth matters less than scale. describes your programme more accurately than deep per-language work in India does.

When TELUS International AI is the right call
Enterprise data-services arm of a large BPO group, formerly Lionbridge AI.
Choose them when enterprises already contracting through a global vendor list. is the dominant requirement.
Where both tend to struggle in India
- Dialect quotas: an Indian language is not one cohort, and a general contributor pool will silently fill quotas with the easiest urban speakers
- Native review: transcription QA needs reviewers who speak the variety, not a generic language reviewer
- Studio access outside metros: rural and small-town speakers rarely come to a metro studio
- Consent under Indian law: DPDP-aligned consent records are a specific artefact, not a generic form
- Account layers: a single-language corpus can wait behind a global account structure
Where we fit
We are not a global platform and do not pretend to be. We run Indian-language collection through a nationwide partner studio network with native reviewers per language, designed cohorts and consent records built for Indian law.
If your programme spans twenty countries, one of the vendors above is a better answer. If the hard part is Indian dialects, speaker recruitment and transcription that survives code-mixing, that is the only thing we do.
Frequently asked
Is Appen or TELUS International AI better for Indian speech data?
Appen suits global multi-market programmes where per-language depth matters less than scale.; TELUS International AI suits enterprises already contracting through a global vendor list.. For depth in a specific Indian language, both are usually routed through general capacity rather than dedicated Indian recruitment.
Can we use more than one vendor?
Commonly, yes. Global vendors carry breadth across markets while a specialist carries the Indian-language corpora. Keep the specification and QA standard identical across both.
How do we compare quotes fairly?
Fix the specification first — cohort design, condition mix, annotation depth, acceptance thresholds — then send the same document to everyone. Quotes that assume different specs are not comparable.
What should we ask for before deciding?
A free sample recorded to your spec, the QA report format, the consent artefact, and who exactly does native review for your language.
Related pages
Run us against your shortlist
Send the same specification you sent everyone else. You get a fixed price, a schedule and a free sample to compare on.