Stella Docs STELLA V1.2 Open app ›
RELEASE NOTES & ENGINEERING JOURNAL

Everything new, written down properly.

Every version of Stella changes how you study. This is where we explain each one — what shipped, why it matters, and the care that went into it. No jargon walls, no burial by bullet point.

Release · v1.2JULY 2026

Stella can now work for you, not just talk with you.

v1.2 introduces Stella Agent — flip one toggle, hand her a topic, and she runs a complete study mission on her own: planning her approach, checking the live web, and writing polished study materials straight into your personal workspace. It is the largest single upgrade Stella has ever received.

Five agents, one toggle

Research

A focused brief on any topic you are studying — current, sourced, and shaped for exam relevance.

Study Notes

High-yield, beautifully structured notes you can read on any device — or download and keep.

Exam Pack

Question-first revision material built around the way examiners actually test a topic.

Study Planner

Tell her your exam and your weak spots — she writes day-by-day checklists directly into your Daily Planner.

Coach

Live, timed MCQs inside the chat. Miss a question and she drills the gap, then teaches it back.

A mission you can watch

Every agent run is fully transparent. You watch her plan the mission, probe your library, search the web (three searches at most — she is deliberate, not wasteful), and then write each file live, word by word. There is a Stop control at every moment, and stopping means you only pay for what was actually written.

The workspace. Every file she writes lands in your personal workspace — and you can drop your own notes in for her to read.
The viewer. Artifacts open right inside Stella in a beautiful reader you can shrink, expand, or take fullscreen. Your choice of polished web pages or clean Markdown.
The receipt. Every mission ends with an honest receipt — exactly what it used, shown as a percentage of your monthly plan. No mystery billing, ever.
Flashcards, offered at the right moment. When Stella finishes teaching something worth keeping, she offers to build you a deck — and writes the builder's brief herself from her own explanation.
A note on usage

Agents work hard, and hard work uses your plan quickly. Every paid plan runs unlimited missions — your plan's usage is the only limit. Free accounts get 3 missions for the lifetime of the account (they never refresh, and they don't touch your monthly free usage). The receipt after every mission keeps you in control of exactly where your usage goes.

5Agent types
≤3Web searches / mission
100%Cost transparency
1Toggle to start
Design · v1.2JULY 2026

Faster to the first word. Calmer everywhere else.

Great design in a study tool is mostly invisible: the answer starts sooner, the battery lasts longer, and nothing on screen fights for your attention. v1.2 carried a deep design and performance pass alongside the agents.

Faster first response. Stella no longer pauses on background housekeeping before she starts answering — the first words of a new chat arrive noticeably sooner.
Battery-first Low mode. On low quality, every decorative animation and glass effect stands down. Your phone stays cool through a three-hour study session.
Silent, instant updates. Stella quietly notices when a new build ships and refreshes herself at a safe moment. You are always on the newest version without ever thinking about it.
One visual language. Every status line — thinking, searching, planning, writing — now shares the same elegant letter-cascade animation and typography. The whole app breathes in one rhythm.
Messages, redesigned. Announcements and notes from the Stella team arrive in an entirely rebuilt card system — layered glass, drawn icons, and typography that finally matches the rest of the app.
Trust & SecurityJULY 2026

Payments, protected.

Before v1.2 shipped, we put the entire payment and account system through an intensive security and reliability audit — the kind banks commission, applied to a study app. Here is what came out of it.

Prices live on the server, only. What you pay is decided and verified server-side — nothing on a device can tamper with an amount.
Every payment applies exactly once. Layered verification means no double charges and no duplicate plan grants — even if a payment is retried or replayed.
Crash-proof billing. If the server is interrupted mid-purchase, nothing half-applies. Your plan state is always whole and correct.
Verified daily backups. Account, plan, and billing data is backed up every day — and the backups themselves are checked for validity, not just written and forgotten.
Hardened account access. Session handling and sensitive admin operations were strengthened end to end, so the only person in your account is you.
EngineeringONGOING

The Answer Engine keeps getting sharper.

Underneath every chat is an engine that decides what Stella knows about you, your subject, and your question before she writes a single word. A recent deep review of that engine is now rolling out as a series of quiet upgrades.

Subject-tuned teaching. Cardio questions get cardiology-shaped guidance; pharm gets pharm. Expert context per subject, with more specialties being added steadily.
Reliable topic chips. Conversations tag themselves by subject correctly, keep their tags across devices, and re-tag as the discussion shifts.
Graceful under pressure. When a model provider hiccups, Stella fails over to a backup fast — long mid-answer stalls are being engineered out.
Cleaner web search. Search-assisted answers were rebuilt to be faster and leaner, with zero wasted background work per message.
OperationsONGOING

Cared for, around the clock.

A study partner is only useful if she is there at 2am before your exam. A large expansion of Stella's operations tooling keeps her that way.

Live health monitoring. Server vitals are watched in real time, so slowdowns get caught before you feel them.
One-click backups. Full data snapshots can be taken on demand, on top of the automatic daily cycle.
Honest notices. If maintenance is ever needed, you get a clear, human message in the app — never a dead white screen.
Real support, in-app. The support center connects you to an actual human, with replies that land back inside Stella — no email black holes.