The short answer
An app brief is a one-to-three page document that tells a development studio what your app must do, for whom, and under what constraints. It is not a technical specification — you are not expected to choose a database or name an architecture. Its job is simpler and more valuable: make every vendor price the same project. When quotes come back far apart, the usual cause is not that one studio is greedy and another is generous; it is that your description left gaps, and each studio filled the gaps with different assumptions.
This guide gives you the structure: nine sections to write, a mapping from your answers to Namtech's published price tiers so you can sanity-check any quote you receive, and rewrites of the vague phrases that quietly make estimates useless.
Why quotes for "the same app" differ so much
Consider the sentence most projects start with: "We want an app like Grab, but for our industry." One vendor reads that as a customer-facing booking app. Another reads it as a two-sided marketplace with driver-style operator apps, live tracking and payments. A third assumes an admin dashboard, since someone must manage the bookings. All three are reasonable readings — and they describe three projects of very different size.
A studio quoting a fixed price has to protect itself against the largest reasonable reading, or exclude things in fine print and re-quote later. Both outcomes are bad for you: the first inflates every quote, the second turns your project into a stream of change requests. The fix is not learning to write specifications — it is answering, in writing, the small set of questions every serious vendor must otherwise guess.
The nine sections of a quotable app brief
Write these nine sections in plain language. Bullet points are fine; screenshots and sketches are welcome. If you honestly do not know an answer, write "unknown — advise us": a named unknown is something a vendor can scope, while a silent gap is something they must assume.
| # | Section | What to write | Why it moves the quote |
|---|---|---|---|
| 1 | The problem | Two or three sentences: what currently hurts, and what "solved" looks like. | Lets the vendor challenge scope that does not serve the goal — the cheapest feature is the one you cut. |
| 2 | The users | Who opens the app: customers, staff, partners? Roughly how many at launch? | Each distinct audience tends to need its own screens, onboarding and permissions. |
| 3 | The core journey | The one flow the app exists for, step by step (e.g. browse → book → pay → get confirmation). | The core journey defines the minimum build; everything else is negotiable scope. |
| 4 | Roles & permissions | Who can see and do what — customer, staff, manager, admin. | One role is Starter territory; several roles with different screens signals a Business build. |
| 5 | Integrations | Every existing system the app must talk to: POS, ERP, accounting, identity, messaging. | Each integration adds scoping, build and test effort — unnamed ones surface later as change requests. |
| 6 | Data & compliance | What personal or payment data the app holds; any industry rules you know apply. | Compliance work (e.g. PDPA documentation, security review) is real scope and should be a visible line item. |
| 7 | Platforms | iOS, Android, or both? Is there an existing website or backend the app must match? | Determines the delivery approach and the testing matrix. |
| 8 | Budget range | An honest range, even if wide. | Lets the vendor propose the strongest scope inside your range instead of guessing at it. |
| 9 | Timeline & trigger | When you need it live, and why that date matters (event, funding, contract). | A hard date changes sequencing and team size; a soft one leaves room to phase the build. |
Notice what is absent: no tech stack, no server sizing, no design trends. Those are the vendor's job. Your leverage is in the business facts only you know.
How your answers map to a price tier
Once the nine sections are on paper, you can roughly predict where a serious quote should land. Namtech publishes its starting points, so we can make the mapping concrete: the same signals that push a project from one of our tiers to the next are the ones any studio prices.
| What your brief says | Likely tier | From (SGD) | Typical timeline |
|---|---|---|---|
| One audience, one core journey, no integrations, no payments | Starter / MVP | 20,000 | 8–12 weeks |
| Multiple roles (customers + staff + admin), payments or bookings, one or more integrations, admin dashboard | Business | 38,000 | 12–20 weeks |
| Deep integrations with core systems, compliance requirements, high-volume or multi-entity operations | Enterprise | 90,000 | Scoped per project |
Namtech's published starting points, not teaser rates — every project gets a fixed quote after one scoping call.
Use this as a smell test in both directions. If your brief describes three roles, online payments and an ERP integration, and a quote comes back near the bottom of the market, something in your brief was not priced — find out what before you sign. If a one-journey MVP is quoted at enterprise level, ask which of your sections drove it; the answer should point to a real line in your brief.
Vague vs quotable: rewriting real requirements
The fastest way to improve a brief is to hunt down its adjectives. "Simple", "seamless" and "like X" cannot be priced; counts, flows and named systems can. The rewrites below keep the intent and add the facts a vendor needs.
| Vague (cannot be priced) | Quotable (can be priced) | What changed |
|---|---|---|
| "A simple booking app" | "Customers pick a service, choose a time slot, pay online and receive a confirmation; staff see a daily schedule." | The journey is enumerated — payments and a staff view are now visible scope. |
| "Like Grab, but for our industry" | "Customer app for placing orders + operator view for accepting them; no live map tracking at launch." | The comparison is replaced by what is in — and explicitly out — of version one. |
| "It should connect to our systems" | "Must sync orders into our accounting software and read stock levels from our POS (vendor names listed)." | Integrations are named and directional, so each can be scoped. |
| "Login for users" | "Customers log in with email or phone OTP; staff accounts are created by an admin; three permission levels." | Roles and auth method are stated — the difference between one login screen and an access-control system. |
| "We need it soon" | "Live by the first week of November for our launch event; a phased release is acceptable." | A date with a reason lets the vendor propose what genuinely fits it. |
The budget lines beyond the build
A complete brief also acknowledges the costs that continue after launch, because they shape scope decisions (for example, whether to phase features). Three are predictable enough to write down today:
- Apple Developer Program — publishing on the App Store requires a membership at 99 USD per membership year (Apple's published fee).
- Google Play — registering a developer account is a US$25 one-time fee (Google's published fee).
- Maintenance and support — at Namtech this starts at 15% of build cost per year, covering monitoring, OS-version updates, security patches, minor improvements and priority support. Hosting and third-party service fees are billed at cost.
None of these numbers is large next to the build, but a brief that includes them signals to every vendor that you are planning an operating product, not a one-off deliverable — and the proposals you get back tend to be more honest about the long term.
Mistakes that inflate quotes
- Listing features instead of journeys. Thirty bullet-point features with no flow forces the vendor to price each one defensively. One core journey plus "nice to have later" gets you a sharper number.
- Hiding the budget. Withholding a range does not get you a lower price; it gets you a proposal scoped for the wrong tier that both sides then rework.
- Forgetting the admin side. Someone must manage the content, orders or users your app creates. If the brief never mentions an admin dashboard, it is either missing from the quote or silently assumed — both are surprises.
- Leaving compliance for later. If your app will hold personal data from users in Singapore, say so in the brief. Scoping privacy and security work up front is cheaper than retrofitting it.
- Polishing instead of finishing. A brief is done when the nine sections have answers (including "unknown — advise us"), not when it looks like a pitch deck.
What Namtech does with your brief
At Namtech every project runs the same six steps — Discover, Design, Build, Test, Launch and Support — with one project manager owning your project from the first call to post-launch. Your brief feeds the Discover step: we take it into a single scoping call, challenge anything that does not serve the goal, and come back with a fixed quote we hold to. If scope changes mid-project, we re-quote the change explicitly rather than absorbing it into surprise invoices.
Our published starting points are SGD 20,000 for a Starter/MVP, SGD 38,000 for a Business app and SGD 90,000 for an Enterprise platform. If you have a draft brief — even a rough one — book a scoping call and we will turn it into a number, or start from the tiers on our pricing page.