9:47pm, the lease email
It’s been open in a tab for six days. Type “reply to lease email”, Sid asks for the first physical move — “open the reply window” — and eleven minutes later it’s sent.
ADHD · focus
Starting is the hard part. Sidle starts with you.
Meet Sidle.
Sidle puts a body double in your pocket. His name is Sid — an AI companion, not a person. Open the app the second the urge to start shows up, name the thing you’ve been circling, and Sid sits with you while you work. No camera, no judgement, no streaks.
Free to use. Any optional upgrade is shown in the App Store before purchase.
What it does
Sidle gives you a calm co-working presence the moment you need one: type the task, make the first physical move, work with a timer on your lock screen and company beside you.
How it works
Open the app — no booking, no waiting room, no camera. Type the thing you’ve been circling; Sid acknowledges it without making it a bigger deal than it is, asks for your first physical move, and then sits with you while you work. It does not monitor you, track your screen, or score your productivity.
Who it’s for
For ADHD and executive-function support — anyone who finds starting the hardest part, at 9pm with no friend free to body-double. Students use it for silent library sessions; adults use it for the email that’s been open in a tab for six days.
Accessibility built in
Native iOS and calm by design: no account required, no streaks or shame mechanics, three session vibes (Gentle, Steady, Quiet), and a lock-screen timer so the phone can lie face-down.
A body double in your pocket
Open it the second the urge to start shows up.
No booking, no waiting room
Sid is already there. No camera, no scheduling a stranger, no co-working seat to pay for. Open the app; that’s the whole ritual.
Name the thing
Type the thing you’ve been circling. Sid acknowledges it without making it a bigger deal than it is.
The first physical move
Sid asks for your first physical move — the smallest real unit of task initiation — and then sits with you while you work.
A timer where you can see it
A calm presence and a timer on your lock screen, so the phone can lie face-down while the work happens.
Sid is an AI companion
Not a person. Sidle says so plainly, everywhere — because a body double you trust starts with knowing exactly what it is.
You can’t fail at it
Step away mid-session and it still counted. Come back after three weeks and the only thing Sid says is some version of “good, you’re here.”
Things Sidle refuses to build
The features we said no to, on purpose.
No streaks you can break. No red badges, no guilt copy, no “you missed a day.” No upsells in the middle of a session. No companion you have to look after. A brain already flooded with shame doesn’t need software that manufactures more of it.
Free, forever: unlimited silent sessions, three vibes (Gentle, Steady, Quiet), and your history as Moments — every session counts, none expire, no account needed. Pro adds a talking start-ritual, memory of what helped last time, an optional mid-session hello, and fresh texture each week — and you only ever see it after your first session, never before, never during. A one-time Lifetime option exists too; prices live in the App Store, not here.
A day with Sidle
Three moments Sidle was built for.
The silent library session
Study hall, phone face-down, timer on the lock screen. A silent session is still a session — body doubling doesn’t need audio to work for you.
Three weeks away
Life happened. Reopening the app costs nothing: no emptied streak, no red badge. “Good, you’re here.” Then: what’s the thing?
For study & campus
Built for the library, honest about the age rating.
Unlimited free silent sessions suit libraries and study halls; the lock-screen timer keeps the phone face-down. Many students use body doubling for study — a presence beside you while you start the essay — and Sidle is that presence on demand.
Honest notes for campus staff: Sidle is rated 9+ with a mild-profanity advisory — frame it for older students, not young children. It needs no accounts, which also means there is nothing for a school to centrally manage; on school-owned devices it deploys like any App Store app. Start at the schools & professionals door.
For therapists and coaches: body doubling’s evidence base is anecdotal and emerging — external structure that many people find makes task activation easier. Sidle claims a way of working many people find useful, not an intervention, and it is not a medical or therapeutic product.
Deployment notes for school IT
- iOS 18 or later.
- No camera — by design. No monitoring, no productivity score.
- No accounts to provision; sessions and Moments live in the app.
- App Privacy label: “Data Linked to You” — purchases, user content and a user ID. Sid is an AI companion whose replies are AI-generated; weigh the label in your district’s app review, and see the privacy policy linked from the App Store listing.
- Rated 9+ (mild-profanity advisory) — position for older students.
- Free to deploy through Apple School Manager Apps and Books (device-based assignment).
Procurement facts, each with an Apple citation: how schools get our apps.
Honest limits
What Sidle is not.
A self-directed focus support, not treatment. Sid is an AI companion, not a person. Body-doubling evidence is anecdotal and still emerging; Sidle is not a medical or therapeutic product and makes no diagnostic or efficacy claims.
Questions, answered honestly
Before you download Sidle
What is body doubling?
Doing a task alongside someone who is simply present — not helping, just there. Many people find it makes starting dramatically easier. Our plain-language guide: body doubling for ADHD.
Does body doubling actually work?
The honest answer: the evidence is anecdotal and still emerging. Many people find it genuinely useful; nobody should sell it to you as a treatment, and we don’t. Sidle claims a way of working, not an outcome.
Why would presence help me start?
Task initiation is often the hardest executive-function moment — the gap between intending and beginning. External structure, including another presence, gives the start something to push against. Qualitative, not clinical: it helps many people, and you’ll know quickly whether you’re one of them.
Is Sid a real person?
No. Sid is an AI companion, not a person — and the app says so plainly. No camera, ever.
Does Sidle watch me or score my productivity?
No camera, no monitoring, no productivity score. Sidle doesn’t know what you did during a session unless you tell it.
What if I abandon a session halfway?
It still counted. Stepping away is not failure; the session lands in your Moments like any other.
What’s free?
Unlimited silent sessions, three vibes (Gentle, Steady, Quiet), and your Moments history — which never expires. No account, no sign-up.
What does Pro add?
Sid talks you into starting — a real conversation that ends in one tiny first move — remembers what you work on and what helped, offers an optional mid-session hello, and brings fresh texture each week. You see Pro only after your first session, never before it, never mid-session. Prices, including a one-time Lifetime option, are shown in the App Store.
Do I need an account?
No. Open the app and start.
Is Sidle therapy or treatment?
No. Sidle is not a medical or therapeutic product. If starting is hard in ways that hurt, a clinician is the right companion for that conversation.
Can I use it for studying?
Yes — silent sessions were made for libraries: phone face-down, timer on the lock screen, presence without sound.
What happens if I miss a few days?
Nothing. No streak emptied, no badge turned red, no guilt copy. Come back after three weeks and Sid’s whole speech is “good, you’re here.”
Ready when you are.
Sidle is free to use; any optional upgrade is shown in the App Store before purchase.