A founder showed me a $180,000 quote last year. She had no idea what was inside it, and the app only needed six screens. Twenty minutes later we had a rough app development cost estimate on paper, and it showed the quote was fair — with two features she could cut. You can do the same thing yourself, today, for free.
All you need is a notepad and ten minutes. This is the same method we walk founders through at Pass Group’s free consultation, minus the whiteboard — it’s one piece of our full guide to app development costs in Australia. By the end you’ll have a price band you can defend — and check any quote against.
The short version
- List what version one must do. Leave the rest for later.
- Sort every feature into three buckets: must-have, helpful, later.
- Count screens, logins and integrations. More of each means more money.
- Turn the list into a band, then test it against two quotes.
Write down what your app must do in version one
Start with the smallest app that would still be useful. Software people call this an MVP — a minimum viable product, which just means the simplest version real people can use. If a feature doesn’t help someone sign up, use the core thing, or pay you, it doesn’t belong in version one.
Write your list in plain words: “customers book a class”, “the trainer sees the bookings”, “we send a reminder the night before”. Don’t write “user management system” — you’ll scare yourself and overpay. A founder who can describe the app in five plain sentences is the founder who gets accurate quotes.
A real example, from a pilates studio we helped: “members see the timetable”, “members book and pay for a class”, “the studio sees tomorrow’s list”, “we cap classes at twelve”, “members can cancel up to an hour before”. Five sentences, no jargon — and every developer who reads it prices the same job. Vague lists are where quotes go to multiply.
Put each feature in one of three buckets
Take your list and sort it. The buckets matter more than the words you use for them:
| Bucket | What goes in it | Typical share of the build |
|---|---|---|
| Must-have | The app fails without it — booking, paying, the core tool | About 60–70% |
| Helpful | Saves users time — saved favourites, search, reminders | About 20–30% |
| Later | Everything else — social feeds, badges, a second language | 0% in version one |
The shares are a rule of thumb, not a law. What matters is that “later” stays honest. Most apps we see quoted above $100,000 have a “later” bucket that was quietly baked into version one.
Two traps while you sort. The first is a must-have that’s really two features wearing a trench coat — “booking” usually means browsing, choosing, paying and cancelling, so say all four. The second is a helpful item that needs its own integration behind it; reminders, for instance, need an SMS or push service. If a feature hides one of your three counts, it’s probably not as helpful as it looks.
Count screens, logins and integrations
Three numbers drive most of the price. Screens: every distinct view a user sees, and each one needs design, coding and testing. A focused version one usually needs 5–8. Logins: how people sign in. Email and password is the cheap option. “Sign in with Google or Apple” adds work, because your app has to talk to those systems safely.
Integrations are connections to outside services — taking card payments through Stripe (the card-payment service) or sending SMS reminders. Each one needs setup, testing and ongoing care. The plumbing that links two programs is called an API, and it’s simply a way for programs to talk to each other.
Write your three counts at the top of the page: screens, login styles, integrations. For the pilates studio it read “6 screens, 1 login, 2 integrations” — and that single line is what let us price the job in minutes instead of days.
As a rough rule, every integration adds weeks, not days — and every screen adds both design and testing. When a quote looks huge, count its screens and integrations first. That’s usually where the money went.
Turn your list into an app development cost estimate
Now do the arithmetic. A small local team typically prices a focused version one from about $5,000 to $20,000, depending on those three numbers. Established Australian agencies quote from roughly $50,000 to $250,000+ for a full production build, and international guides put similar projects anywhere from $40,000 to $300,000. Both can be honest numbers — they describe different scope and staffing, not different honesty.
Your band comes from picking the team size you actually need. Six screens, one login style and one payment integration? The founder-budget band is realistic. Syncing with a hospital system or running three languages? You’re in agency territory, and no app development cost calculator will make that a $10,000 job.
Write your number into a budget rather than leaving it in your head. The government’s free Moneysmart budget planner is built for exactly this. It forces you to see your app budget estimate sitting next to rent, wages and marketing — which is where it belongs.
One more habit that saves arguments later: say what your band includes. The three things people forget are tax (quotes often exclude GST), the store accounts (Apple and Google each charge their own fees), and the words and pictures you’ll supply yourself. Write those three lines under your number and the quote comparisons stay honest.
Sanity-check your estimate against two quotes
Send your one-page list to two different builders and ask each for a fixed quote for version one. Include the three counts, which platform you want first, and your honest budget band — builders price faster and straighter when they know both. A good quote shows line items: screens designed, features built, the hourly rate, and what’s excluded. Ask both to price your “later” bucket separately, because that’s where quotes quietly grow.
Be wary of any quote that’s a single number with no breakdown. And if two quotes differ by more than double, the gap is scope, not price. Ask what the cheaper one left out — the answer is usually a bucket you assumed was included.
When to redo the estimate (and when to stop)
Redo the estimate when the scope changes: a new must-have, a new integration, a second platform. Redo it once more after launch, because version two should be costed against what real users did, not what you guessed. Otherwise, stop. If your two quotes land inside your band, your app development cost estimate is done — and the next ten minutes are better spent finding your first ten users.
Get a Free Consultation
Bring your one-page list and we’ll give you a realistic price band for version one — the same method, with our engineers in the room.
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