Is Convex or Deep Code better?

Neither clearly leads. Convex starts at Free and Deep Code at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Convex or Deep Code?

Convex starts at Free and Deep Code at Free.

Does Convex or Deep Code run on more platforms?

Convex runs on Web. Deep Code runs on Windows, macOS, Linux.

Can I use Convex for free?

Both have a free tier, so you can try either at no cost before committing.

What is Convex best used for?

Convex is most often used for collaborative applications where several users see the same data and every client must reflect a change immediately, agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cache, small product teams who need a complete backend, including auth integration, file storage and subscriptions, without hiring infrastructure engineers, prototypes that must become production without a rewrite of the data layer, where end-to-end typescript types remove a class of integration bugs. Of those, collaborative applications where several users see the same data and every client must reflect a change immediately and agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cache are not what Deep Code is typically brought in for.

What can Convex do that Deep Code cannot?

Convex covers Reactive queries, TypeScript server functions, ACID transactions, Document database. Deep Code covers DeepSeek-backed agent, Session management, File explorer, Snippets panel.

Databases · head to head

Convex vs Deep Code

Convex

Databases

Reactive backend combining a document database, TypeScript server functions and live queries, source-available under the Functional Source Licence.

From: Free
Free plan: Yes

Visit Convex Full review

Deep Code

Developer Tools

Desktop AI coding assistant that runs on DeepSeek models

From: Free
Free plan: Yes

Visit Deep Code Full review

The short version

Free plans on both; paid from $25/mo and $5/mo.
Only Convex lists reactive queries; only Deep Code lists DeepSeek-backed agent.
Where Deep Code falls short: the Pro tier caps included usage at 100 Pro Credits per day rather than offering an unmetered plan.
Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Convex and Deep Code actually diverge.

Attributes where Convex and Deep Code differ
Attribute	Convex	Deep Code
Pricing model	Subscription	Freemium
Platforms	Web	Windows, macOS, Linux
Category	Databases	Developer Tools

Identical on both: starting price (Free), free tier (Yes).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Convex

Reactive queries
TypeScript server functions
ACID transactions
Document database
Scheduling and workflows
File storage
Text and vector search
End-to-end types

Only in Deep Code

DeepSeek-backed agent
Session management
File explorer
Snippets panel
Voice input
Bring your own key

What people use each for

The jobs each tool is most often brought in to do.

Convex

Collaborative applications where several users see the same data and every client must reflect a change immediatelynot Deep Code
Agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cachenot Deep Code
Small product teams who need a complete backend, including auth integration, file storage and subscriptions, without hiring infrastructure engineersnot Deep Code
Prototypes that must become production without a rewrite of the data layer, where end-to-end TypeScript types remove a class of integration bugsnot Deep Code

Deep Code

AI-assisted coding on a budgetnot Convex
Debugging and bug fixingnot Convex
Refactoring existing codenot Convex
Reusing prompt templates across projectsnot Convex
Using an existing DeepSeek API key without proxy setupnot Convex

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Convex

The Functional Source Licence is not an OSI open source licence: competing use is prohibited until each release reaches its second anniversary and converts to Apache 2.0, so you may self-host but you may not build a service on it
Transactions are bounded at one second of user code, 16 MiB read and written, 32,000 documents scanned and 16,000 written, so every backfill, migration or bulk import has to be chunked into scheduled batches rather than written as a single operation
There is no SQL and no query planner; you declare up to 32 indexes per table and traverse them, and joins are loops in TypeScript, so an unanticipated access pattern requires a schema and index change rather than a new query
It is not an analytical database, so reporting means streaming data out to a warehouse and BI tools cannot be pointed at Convex directly, which adds a pipeline the architecture diagram did not originally include
The application is written against Convex's function and client APIs rather than a standard protocol, so leaving means rewriting the data access layer and replacing the reactivity model, not repointing a connection string

Deep Code

Model choice is narrow. Bring your own key covers DeepSeek-V4-Pro and Flash plus the GLM and Mimo coding plans, and no frontier model from OpenAI, Anthropic or Google
The Pro tier caps included usage at 100 Pro Credits per day rather than offering an unmetered plan
Bring your own key is a paid feature, so the free tier cannot be pointed at your own DeepSeek account
Desktop only, with no editor extension, web version or team seat management as of September 2026
A small, young vendor with no independent review coverage yet, so there is nothing outside the vendor's own site to corroborate the cost claim

Pricing, plan by plan

Convex

Free

Free & StarterFree
- Supports 1-6 developers
- Reactive database
- File storage
Professional$25
- Supports up to 20 developers
- All Starter features
- Log streaming
Business & Enterprise$2,500/month minimum
- Supports 50+ developers
- SAML/SSO
- Service SLAs

Deep Code

Free

FreeFree
- Session management
- File explorer and snippets panel
- Voice input
Pro$5/mo
- All Free features
- 100 daily Pro Credits
- BYOK across DeepSeek-V4-Pro, DeepSeek-V4-Flash, GLM Coding Plan and Mimo Coding Plan

Which should you pick?

Choose Convex if

You need reactive queries.
You want to start without paying.
You also want typescript server functions.

Convex review

Choose Deep Code if

You need deepseek-backed agent.
You want to start without paying.
You work on Windows, macOS, Linux.
You also want session management.

Deep Code review

Questions people ask

Is Convex or Deep Code better?: Neither clearly leads. Convex starts at Free and Deep Code at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Convex or Deep Code?: Convex starts at Free and Deep Code at Free.
Does Convex or Deep Code run on more platforms?: Convex runs on Web. Deep Code runs on Windows, macOS, Linux.
Can I use Convex for free?: Both have a free tier, so you can try either at no cost before committing.
What is Convex best used for?: Convex is most often used for collaborative applications where several users see the same data and every client must reflect a change immediately, agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cache, small product teams who need a complete backend, including auth integration, file storage and subscriptions, without hiring infrastructure engineers, prototypes that must become production without a rewrite of the data layer, where end-to-end typescript types remove a class of integration bugs. Of those, collaborative applications where several users see the same data and every client must reflect a change immediately and agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cache are not what Deep Code is typically brought in for.
What can Convex do that Deep Code cannot?: Convex covers Reactive queries, TypeScript server functions, ACID transactions, Document database. Deep Code covers DeepSeek-backed agent, Session management, File explorer, Snippets panel.

Answered from the vendors’ own pages

Convex: Is Convex open source?

It is source-available under FSL-1.1-Apache-2.0. You may read, modify and self-host it, but competing use is prohibited until each release converts to Apache 2.0 on its second anniversary.

Deep Code: Which models does Deep Code run on?

DeepSeek V4 family models, with the vendor's headline built around DeepSeek V4.1. The free tier's included credits run on DeepSeek-V4-Flash. Paid users bringing their own key can also use DeepSeek-V4-Pro, the GLM Coding Plan and the Mimo Coding Plan.

Source

Convex: Can I self-host it?

Yes. The backend, dashboard and CLI can run on your own infrastructure, with most of the features of the cloud product. Self-hosted instances include a telemetry beacon that can be disabled.

Deep Code: What does Deep Code cost?

There are two tiers. Free is $0 per month and includes session management, the file explorer, snippets, voice input and weekly free credits on DeepSeek-V4-Flash. Pro is $5 per month and adds 100 daily Pro Credits plus bring-your-own-key support for multiple models.

Source

Convex: Does it support SQL?

No. Data is accessed through a TypeScript query builder over declared indexes. Relationships are traversed in code, which is explicit and type-safe but means no ad hoc querying.

Deep Code: Do I need my own API key to use it?

No. The free tier includes weekly credits and needs no credit card, so the app works without a key. Bring your own key is available on the $5 per month Pro tier and covers DeepSeek-V4-Pro, DeepSeek-V4-Flash, the GLM Coding Plan and the Mimo Coding Plan.

Source

Convex: What happens if a mutation exceeds the limits?

It fails rather than running longer, so bulk work must be split into batches and scheduled. The limits are per transaction: one second of user code, 16 MiB read and written, 32,000 documents scanned and 16,000 written.

Deep Code: Which operating systems does it run on?

Windows, macOS and Linux. It is a desktop application rather than an editor extension, so it runs alongside whatever editor you already use.

Source

Convex: How does reactivity actually work?

Queries are deterministic functions and Convex records the data each one read. When a mutation changes that data, affected queries are re-run and subscribed clients receive the new result, so cache invalidation is handled by the platform.

Deep Code: Is the 95 percent cheaper claim independently verified?

No. It is the vendor's own figure, based on DeepSeek token pricing against frontier model pricing. Actual savings depend on which model you compare against and how much of your usage falls inside the included credits.

Source

Convex vs Deep Code

Convex

Deep Code

The short version

Where they differ

What each one covers

Only in Convex

Only in Deep Code

What people use each for

Convex

Deep Code

Where each one falls short

Convex

Deep Code

Pricing, plan by plan

Convex

Deep Code

Which should you pick?

Choose Convex if

Choose Deep Code if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Convex

More on Deep Code

Keep looking

Other head to heads