App prototype development from $199
From $199 for the initial build and first review. The final price depends on how many features you need and how complex they are. Prices are in USD, and your actual agreed scope is written down before work starts.
Click through your idea before you commit to building it.
App prototype development at AttainSoft turns your brief and design references into a hosted, clickable prototype you can refine and show to potential customers, partners and investors. It starts from $199 for the build, including the first review. It is a prototype, not a production product.
An idea is easier to judge once people can click it.
A document or a conversation only takes an idea so far. Before you commit to a full build, you can explore it as a hosted, clickable prototype, and give the people you want to convince something to open instead of something to imagine.
A full build is an expensive way to find out
Many founders start with a prototype because it is the cheapest way to find out whether the idea holds up.
You may not have designs yet
Bring the problem, who it is for, and any references you have: brand notes, screenshots or links. If you have no designs, we recommend a visual direction as part of shaping the prototype.
Describing it is not the same as showing it
Use the hosted prototype to explain your idea to potential customers, partners or investors. Demo access is arranged under your project's sharing rules.
What you get
A clear scope, a clear price, a clear limit.
The prototype is stage one of three. Every stage has a clear job, a clear price and a clear limit, and the prototype's job is seeing, clicking through, refining and presenting the idea.
One main journey, up to five screen templates
We shape what you bring into one main user journey worth building first, with up to five screen templates. New features or a changed core journey are quoted separately, and revisions are not unlimited.
A clickable prototype on a hosted URL
A real hosted interface you can click through and show, built on simulated flows and sample data. Hosted by AttainSoft while you refine and during preservation after sign-off, with a URL you can share under your project's rules.
From a brief to a prototype you can show.
- 1
Bring the problem and your references
Before work startsThe audience and the problem, plus whatever you already have: rough flows, brand or design references, and the interactions you care about most. We shape that into one main journey, and the agreed scope is written down before work starts.
- 2
We build the first version
At first deliveryThe initial build and first review start from $199. The weekly fee starts when the first version is delivered.
- 3
Refine with one consolidated round a week
During refinementFrom $49/week. Group your comments, screenshots and change requests into one consolidated revision round per week. New features or a changed core journey are quoted separately.
- 4
Sign off, then preserve
After sign-offSign-off is explicit. At the next billing renewal after you sign off, the plan moves to $49/month preservation, which keeps the accepted version available with no included feature work.
The difference
Interactive prototype vs. private MVP.
| What matters | Interactive prototype | Private MVP |
|---|---|---|
| Initial price | From $199 for the initial build and first review. | From $1,999, set by features and complexity. |
| Intended use | See, click through, refine and present the idea. | Validate working core flows with an invited group. |
| Working vs. simulated | Simulated flows and sample data. | Working core flows, limited scope, real vs. simulated labeled. |
| Included scope | One main journey, up to five screen templates. | Agreed working journeys and private tester access. |
| Ongoing | From $49/week while refining; $49/month preservation after sign-off. | From $299/week after the initial build, set by features. |
| Excluded or quoted separately | New features, a changed core journey, live operations. | Public commercial use, live sales, over-limit usage. |
All prices are USD starting prices; each quote depends on the number of features and their complexity. Scope and revision changes are quoted separately.
Is this a fit?
Questions about app prototypes.
What is a clickable prototype, and is it working software?
It is a real hosted interface you can click through and show, built on simulated flows and sample data. It is not live business operations. The private MVP is the stage where agreed core flows actually work, for a small invited group.
What counts as a revision?
A revision is one consolidated round of feedback on the agreed main journey: comments, screenshots or change requests grouped together and applied together. The prototype includes one consolidated round per week during refinement. New features or a changed core journey are not revisions; they are quoted separately.
Can I show the prototype to investors or partners?
Yes. Use the hosted prototype to explain your idea to potential customers, partners or investors. Arrange demo access under your project's sharing rules; funding and investment outcomes are not guaranteed.
What happens when I approve the prototype?
Sign-off is explicit. At the next billing renewal after you sign off, the plan moves to $49/month preservation, which keeps the accepted version available with no included feature work. A feedback ticket alone never changes billing.
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Ready to click through your idea?
Tell us about the idea and who you want to show it to. We'll say honestly which stage is worth starting with.