Evenfall vs Brave Leo: a private AI chat comparison
Brave Leo is an AI assistant built into the Brave browser that keeps chats on your device and does not train on them. Evenfall is a standalone privacy-focused AI chat web app with synced history, voice mode, and saved assistants. This page compares the two on privacy, features, and price.
Pick Evenfall if you want a full standalone chat app that works in any browser, with history that syncs across devices, real-time voice mode, and reusable assistants.
start freePick Brave Leo if you already live in the Brave browser and want a free, no-account assistant that keeps conversations on-device with nothing stored in the cloud.
evenfall vs Brave Leo, feature by feature
| Feature | evenfall | Brave Leo |
|---|---|---|
| Trains on your conversations | No — conversations are never used for training | No — Leo does not use chats for model training |
| Data retention & storage | Stored server-side in a database until you delete it | Not retained on Brave's servers; chat history lives locally on your device, and can be made temporary or disabled |
| Deleting a conversation | Hard-deletes the database row permanently — no soft-delete or recovery window | History is local, so clearing it removes it from your device |
| Encryption / anonymization | Encrypted in transit and at rest; privacy enforced by policy (no training, no ads, real deletion) | Queries reverse-proxied to strip IP; optional TEE-verified encrypted inference on a select model in Brave Nightly |
| Ads & behavioral tracking | None — no ad pixels, no cross-site profiling | None in Leo |
| Model choice | One fast frontier model via a model picker, with more options over time (provider not named) | Multiple models (Llama, Claude Haiku/Sonnet/Opus, Qwen, DeepSeek, and others) plus Bring-Your-Own-Model |
| Voice | Real-time spoken voice mode on Pro (~1 hour of talk time per month) | Voice-to-text dictation on iOS; no real-time spoken conversation mode |
| Web search | Automatic web search when a question needs fresh info; user can turn it off | Can pull answers from Brave Search with citations |
| History & cross-device sync | Full conversation history synced across devices; folders and pinned chats | History is local to each device only — no cross-device sync by design |
| Custom instructions / assistants | Per-conversation custom instructions plus saved reusable assistants (paid) | Saved-prompt Skills triggered with /shortcuts, plus a customization-and-memory feature |
| Where it runs | Standalone web app in any browser; no native mobile apps (web only) | Built into the Brave browser — desktop, Android and iOS — but requires using Brave |
| Account & anonymity | Email one-time code or Google sign-in; anonymous crypto pass option | No account for free use; Premium uses unlinkable tokens so payment isn't tied to usage |
| Pricing | Free 10 msgs/day; Standard $14.99/mo; Pro $45.99/mo (voice, unlimited under fair use) | Free tier bundled with the browser; Leo Premium $14.99/mo or $149.99/yr |
Two different shapes: a browser feature vs a standalone app
The biggest difference is not privacy — it's form factor.
Brave Leo is a feature of the Brave browser. It lives in a sidebar, can read the page you're on, and is available on Brave for desktop, Android, and iOS. That tight integration is genuinely useful: highlight text, summarize a page, ask a follow-up without leaving the tab. The trade-off is that Leo only exists inside Brave. If you use Chrome, Safari, Firefox, or Arc, Leo isn't there, and your chat history stays on the one device that created it because it's stored locally rather than synced.
Evenfall is a standalone AI chat web app. It opens in any browser at a URL, so it doesn't matter which browser you prefer. Your conversations sync across every device you sign in on, auto-title after the first exchange, and organize into folders and pinned chats. Evenfall has no native mobile apps — it's a responsive web app — and it can't read the page you're browsing the way a built-in browser assistant can. Which one fits depends on whether you want an assistant inside your browser or a dedicated chat workspace you can reach from anywhere. See our principles for how Evenfall thinks about this.
Privacy: local-first vs by-policy — and the honest limits
Both products take real, unusually strong privacy positions, and neither trains on your conversations.
Brave Leo's model is local-first: chats aren't retained on Brave's servers, they live in your device's local storage, and you can make them temporary or turn history off entirely. Queries are routed through a reverse proxy that strips your IP before they reach the model, and Brave has shipped an optional TEE-verified encrypted-inference model (in Brave Nightly, on a select model) where inputs and outputs run inside a hardware enclave. That's a stronger cryptographic story than Evenfall offers.
Evenfall's privacy is enforced by policy — no training, no ads, no behavioral tracking, and deletion that removes the actual database row with no soft-delete or recovery window — with data encrypted in transit and at rest. Account deletion is immediate.
So if cryptographic secrecy or keeping data off any server is your priority, Leo's architecture is ahead. If you want strict no-training, no-tracking, hard-delete policy plus synced history and anonymous crypto billing, Evenfall is built for that.
Features and cost: where each one pulls ahead
Models
Brave Leo clearly wins on model breadth. It offers several models across free and Premium tiers — open models like Llama and Qwen, Anthropic's Claude (Haiku through Opus), DeepSeek, and others — plus a Bring-Your-Own-Model option for connecting a local model or an external API key. Evenfall exposes one fast frontier model through a picker today, with more options planned. If choosing and comparing models matters to you, Leo is the better fit.
Voice
This is where Evenfall pulls clearly ahead. Evenfall's Pro plan includes a real-time voice mode (about an hour of talk time per month) — actual spoken back-and-forth, not the voice-to-text dictation Leo offers on iOS for hands-free input.
Assistants and customization
Both tools let you save reusable instructions. Evenfall has per-conversation custom instructions plus saved assistants (reusable instructions and personas) on paid plans. Brave Leo added a Skills feature — saved prompts triggered with /shortcuts — along with a customization-and-memory feature. These are roughly comparable; pick based on which workflow you prefer.
Pricing
Leo's free tier is bundled with the browser at no cost and needs no account — hard to beat if you already run Brave. Leo Premium is $14.99/mo (or $149.99/yr). Evenfall is Free (10 messages/day), Standard $14.99/mo, and Pro $45.99/mo for voice and higher limits, with an anonymous one-time crypto pass as an alternative to cards. Compare more tools on our compare page.
frequently asked
Does Brave Leo store or train on my conversations?
No. Brave Leo does not use conversations for model training, and it does not retain chats on Brave's servers. Chat history is stored locally on your device, and you can make chats temporary or turn history off entirely. Queries are routed through a reverse proxy that strips your IP address.
Is Evenfall more private than Brave Leo?
It depends on what you mean by private. Both avoid training on your chats and avoid ad tracking. Brave Leo is stronger on architecture — chats stay on your device and it offers an optional hardware-enclave encrypted model. Evenfall keeps synced history and is private by policy: no training, no ads, no tracking, and permanent hard-deletion, with data encrypted in transit and at rest.
Can I use Brave Leo without the Brave browser?
No. Brave Leo is built into the Brave browser and only works there, across Brave on desktop, Android, and iOS. Evenfall is a standalone web app that runs in any browser, so you can use it in Chrome, Safari, Firefox, or Brave without switching browsers.
Which one has voice mode?
Evenfall has a real-time spoken voice mode on its Pro plan, with about an hour of talk time per month. Brave Leo offers voice-to-text dictation on iOS for hands-free input, but not a real-time spoken conversation mode.
How does pricing compare?
Brave Leo has a free tier bundled with the browser that needs no account, and Leo Premium is $14.99/month or $149.99/year. Evenfall is free for 10 messages a day, Standard is $14.99/month, and Pro is $45.99/month for voice mode and higher limits, with an anonymous one-time crypto pass available.
Does either one let me sync chat history across devices?
Evenfall syncs your full conversation history across every device you sign in on. Brave Leo keeps history locally on each device only, so conversations do not sync between machines — that is part of its local-first privacy design.
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