Perstantia
See where your body is going. Get there honestly.
Perstantia shows you your future body, drawn every week from your own photographs and your own record, and makes the daily work of getting there effortless. Your own AI can read the whole record and act on it, and the app works fully without one.
What Perstantia does for you
Your future body, every week, from your own photos.
Today · Draw a projection picture (AI, in the app)
Studio progress pictures, automatically.
Progress · Take a photoshoot — front, side and back, guided
Log food from a photo and your notes together, or either on its own.
Record · Estimate a meal from your description or a photograph (AI, in the app)
A workout that survives your pocket, with the Watch counting rest.
Workouts · Confirm a set from your Watch, adjusting reps or weight by the crown first
Your AI knows your whole history.
Settings · Connect your AI
Intake against what you burnt.
Settings · Have this phone hand over what Apple Health records
Supplements that know when they run out.
Record · See what needs reordering
It never lies to you and never locks you out.
Settings · Take your own data out of the product
What it looks like
Fictional people on synthetic accounts; AI-made photos, no customer's. Two accounts with 6 weeks of record and a photoshoot, captured 2026-10-03.

Today: what to do now, and what is already done.

Workouts: this week of the plan, and the lift in front of you.

Record: the day as it happened, and where to correct it.

Progress: the trend, the pictures and what they are heading towards.
Five screens, five questions
Each screen answers one question, and your AI answers any of them in words. What is listed below is read off the product itself — 201 things it records and does, of which these are the ones worth arriving for.
Today
What should I do today? · 20 in all
- See what to do today
- See the program changes waiting on you
- Log every dose that is due now
- Draw a projection picture (AI, in the app)
- See what your friends did today
Workouts
What do I lift now? · 45 in all
- Start a workout
- Log a set
- Confirm a set from your Watch, adjusting reps or weight by the crown first
- Compose your first training plan from what you have said
Tell your AI —
- Build a training plan in the app — days, movements, run steps, sets and reps, a load rule and dated phases
In the app, or tell your AI —
- See what to do instead when you are away or short of equipment
Tell your AI —
Record
What happened? · 42 in all
- Log a meal
- Estimate a meal from your description or a photograph (AI, in the app)
- See what needs reordering
Tell your AI —
- Note what is going on around training
Tell your AI —
Progress
Am I improving? · 25 in all
- See where the next weeks go if this keeps up
- Add a progress photo
- Hand your AI one photo, the instructions and the evidence behind it
Settings
How is the application configured? · 69 in all
- Connect your AI
- Have this phone hand over what Apple Health records
- Take your own data out of the product
- Delete your account and everything in it
Bring your own AI
Perstantia connects to the AI you already use, and it sees exactly what you can see and nothing more. There is no assistant of ours to pay for.
What it costs
Every month
€24.99 a month
Everything Perstantia can do, for as long as you keep it, and stopped whenever you like.
Every year
€239.99 a year
The same thing, paid for a year at a time.
An answer pack
€9.99 for 20 answers
Extra answers from the app's own AI, bought outright and spent only past the allowance the subscription already includes. It adds no days to a subscription.
The amounts are Apple’s prices in Germany, in euro. Elsewhere Apple charges in your own currency, at its price where you are.
Your first fourteen days are everything Perstantia can do, free. Nothing is charged until you choose, and your record stays yours to read and export after.
A year costs 20% less than twelve months bought one at a time. Every amount above includes tax. Apple is the seller: a subscription or an answer pack is bought in the iPhone app, and it takes the payment, collects the tax due where you are, and sends your receipt.
What you are promised
Read what you are promised — in full, and dated.