The verdict in three sentences
A custom web app in Dublin ships in 4 to 9 months for a full version, with a usable MVP as early as 3 to 4 months. The rhythm rests on a 2-3 week discovery followed by 2-week sprints that deliver value continuously. What stretches timelines is almost always predictable: integrations, data migration and internal approval cycles.
What's a realistic agile timeline in 2026?
The schedule depends on scope, but the agile structure stays stable. Here's a typical 2026 timeline for a medium-complexity business app.
| Phase | Duration | Deliverable | Value |
|---|---|---|---|
| Discovery | 2 – 3 wks | Backlog, mockups, architecture | Reliable estimate |
| Core sprints | 6 – 8 wks | Auth, data, 1 module | Usable base |
| MVP in production | 3 – 4 months | Core feature live | First real usage |
| Extension sprints | 2 – 4 months | Modules, reporting, roles | Full coverage |
| Full version | 4 – 9 months | Complete app + integrations | Wide rollout |
| Stabilization | 3 – 4 wks | Fixes, performance, docs | Reliability |
Putting the MVP in production at month 4, instead of waiting until month 9, turns waiting into learning.
What stretches (or shortens) the timeline?
Overruns rarely come from pure code. Here are the 2026 factors and their schedule impact.
| Factor | Timeline impact | How to control it |
|---|---|---|
| ERP/accounting integration | +3 to +8 wks | Scope APIs in discovery |
| Legacy data migration | +2 to +6 wks | Data audit upfront |
| Slow internal approvals | +2 to +5 wks | Single accountable owner |
| Expanding scope | +4 wks and up | Backlog frozen per sprint |
| Key-user availability | +2 to +4 wks | Reserved time slots |
| Incremental delivery | −4 to −8 wks | MVP first, extensions after |
The only lever that genuinely shortens the timeline is incremental delivery: it avoids the tunnel effect and ships value to production early.
Mini case study
Aoife, operations director of a 60-person logistics firm in Dublin, wants a shipment-tracking app before committing to a budget. The studio proposes a 3-week discovery, then an MVP (tracking + dashboard) in 3.5 months. Migrating 4 years of Excel history adds 4 weeks, anticipated at discovery. The full version with carrier integration ships at 8 months. By delivering the MVP at month 4, the field team saves time 5 months before project end, partly funding the rest.
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FAQ
Can you get a business app in under 3 months?
A very tight MVP (1 module, no heavy integration) can ship in 8-10 weeks after a short discovery. Below that it's a prototype. A genuinely complete business app takes 4 to 9 months.
Why a 2-3 week discovery phase?
It firms up the estimate, mockups and architecture before writing costly code. Skipping discovery is the surest way to double timelines through mid-project rebuilds.
What do 2-week sprints actually achieve?
They deliver a testable increment every two weeks and let you re-tune the backlog based on feedback. You watch the product grow and can adjust scope each sprint rather than only at the end.
How do I stop the project dragging on?
By freezing each sprint's scope, naming a single decision-maker on the client side, and clearly separating MVP from extensions. Scope creep is the number-one cause of timeline overruns.
Should we wait for the full version to use the app?
No, that's actually discouraged. Putting the MVP in production by month 3-4 generates real usage, valuable feedback and early ROI that justifies continuing the project.
Let's scope your project. Tell us your modules, integrations (ERP, carriers, accounting) and target deadline, and we'll set an agile timeline with an MVP in production within 4 months. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.