What do you deliver: the codes in the client's data, or a presentation?

If the deliverable is an Excel file or a deck, several tools work. If it is the codes inside the .sav and the tables, ask exactly which file comes out.

Can you try it before talking to sales?

Blix offers a free trial, and Survey Coder gives 250 responses free, no card. Try both on the same file.

Do you measure in waves and need the same codebook in all of them?

Ask to see how the codebook carries from one wave to the next, on your own data.

Where is your data processed?

Blix says it runs in a closed environment and never uses your data to train models; it does not say which models it uses. Survey Coder uses Claude models, by Anthropic. Always ask.

Do you pay a subscription or for what you code?

With occasional studies or uneven volume, the pricing model changes the real cost a lot.

Comparison

Survey Coder vs Blix

Blix, by Blix Ltd. in Tel Aviv, is AI verbatim coding software for research agencies and insights teams. It is one of the closest to Survey Coder: it codes open ends, imports SPSS and reuses codebooks. The difference is in what it delivers at the end.

Where they are alike

Both code open-ended survey responses with AI, and in both the analyst adds, renames and merges codes.
Both import SPSS, Excel or CSV files.
Both let you reuse codebooks in trackers.

Where they differ

Survey CoderBlix

Built for

Survey CoderOpen-ended survey responses: NPS, satisfaction, concept tests, trackers.

BlixVerbatim coding for research agencies and insights and CX teams.

How it uses AI

Survey CoderBuilds the codebook from your responses, or applies the one you already use, and codes every response.

BlixDiscovers topics or applies your own codebook, and codes by meaning with language models, with multiple codes per response plus sentiment. The analyst guides the AI with instructions or examples and edits the codes.

What you take away

Survey CoderThe codes as columns attached to each respondent, in your .sav or an Excel file; from a .sav, also the tab book with banner and significance.

BlixA dashboard, a full Excel file with the coded data and PowerPoint slides, ready to analyze in SPSS or R.

Waves of an ongoing program

Survey CoderThe next wave inherits the same codebook automatically, so the trend is comparable.

BlixSaves and reuses codebooks — including ones imported from Excel or other platforms — to code recurring tracker waves.

How you pay

Survey CoderPer coded response, one-time purchase. Credits never expire.

BlixSubscription plans and pay-as-you-go options. It does not publish prices.

What we say about Blix comes from its website, as of September 23, 2026.

When Blix is the better fit

If your team works on projects in many languages and wants one code frame across all of them, Excel and PowerPoint deliverables, or a text analysis API, Blix covers that. Survey Coder focuses on returning the codes attached to each respondent and, from a .sav, on the tab book.

When Survey Coder is the better fit

If your work is a survey program — a monthly NPS, a brand tracker, concept tests — and the codes need to come back into your data as variables and end up in tables, wave after wave with the same codebook. That is what it is built for: AI does the first pass and your team puts its judgement where it's actually needed.

What one company found when it compared

A services company compared our coding of its NPS with its own, across every response. They agreed on around 96% — and when it reviewed the differences, it found several came from errors in its own coding.

A typical study of 5,000 to 8,000 comments is coded in under an hour.

Five questions that decide it

You do not need to believe either page. These questions decide it, and they apply to any vendor — including us.

1
What do you deliver: the codes in the client's data, or a presentation?
If the deliverable is an Excel file or a deck, several tools work. If it is the codes inside the .sav and the tables, ask exactly which file comes out.
2
Can you try it before talking to sales?
Blix offers a free trial, and Survey Coder gives 250 responses free, no card. Try both on the same file.
3
Do you measure in waves and need the same codebook in all of them?
Ask to see how the codebook carries from one wave to the next, on your own data.
4
Where is your data processed?
Blix says it runs in a closed environment and never uses your data to train models; it does not say which models it uses. Survey Coder uses Claude models, by Anthropic. Always ask.
5
Do you pay a subscription or for what you code?
With occasional studies or uneven volume, the pricing model changes the real cost a lot.

Try it on your own comments

250 responses free, no card. Upload a spreadsheet from your last NPS and compare the result with what you have today.

Try it free Request a pilot