The verdict in three sentences
When a vendor abandons an application mid-build, the first useful spend is a code audit, between 3,000 and 10,000 USD in Miami in 2026, before any new development. If the audit shows structured, salvageable code, a takeover usually costs 40 to 70% of a full rebuild. The absolute priority remains recovering access (domain name, hosting, Git repository, app store accounts): without it, no option is really open.
Step 1: recover access before anything else
Many owners discover when the developer leaves that the domain, the server or the Google Play account are in the developer's name. Legally, paid code belongs to you if the contract says so, but in practice each access must be recovered. Take inventory before signing with a new vendor.
| Access to recover | Where to look | Typical recovery time | Cost if lost (2026 estimate) |
|---|---|---|---|
| Domain name (.com) | Registrar, purchase invoice | 3 to 15 days | 20 to 2,000 USD (buyback, dispute) |
| Hosting and server | Invoice, setup email | 1 to 10 days | Full rebuild of infra 1,500 to 5,000 USD |
| Git repository (GitHub, GitLab) | Invitations, emails | Immediate to impossible | No repo: partial reconstruction |
| Database | Server or cloud service | 1 to 5 days | Lost data: often irreplaceable |
| Google Play and App Store accounts | Developer console | 7 to 30 days | New listing, loss of reviews |
| API keys (Stripe, SMS, maps) | Merchant dashboards | 2 to 15 days | Reactivation, new contracts |
If the developer cannot be reached, a written formal notice and invoices in your company's name are often enough for providers to transfer the domain and hosting.
Step 2: the code audit and what it must deliver
A serious audit is more than an opinion. It produces a quantified report that becomes the basis of the takeover quote.
| Audit level | Indicative Miami price 2026 | Duration | Deliverables |
|---|---|---|---|
| Quick audit | 3,000 to 4,500 USD | 3 to 5 days | Access status, stack, takeover or rebuild opinion |
| Standard audit | 5,000 to 7,500 USD | 6 to 10 days | Code quality, security, real % working |
| In-depth audit | 8,000 to 10,000 USD | 10 to 15 days | Costed takeover plan, tests, technical debt |
These amounts are market estimates. The audit answers three questions: what share of features really works, is the code readable and secure, and how many days are needed to finish.
Step 3: takeover or rebuild, the decision grid
| Audit finding | Recommendation | Relative cost | Indicative delay |
|---|---|---|---|
| Over 60% working, clean code, recent framework | Takeover | 40 to 50% of a rebuild | 4 to 8 weeks |
| 40 to 60% working, moderate debt | Takeover with refactoring | 55 to 70% of a rebuild | 8 to 12 weeks |
| Under 40%, no tests, security flaws | Rebuild | 100% | 12 to 16 weeks |
| No Git repo, only a live version | Rebuild reusing designs and data | 85 to 100% | 12 to 16 weeks |
| Abandoned framework or obsolete version | Progressive rebuild | 80 to 100% | 10 to 16 weeks |
For reference, a medium-complexity custom application is priced at Kolonell between 4,000,000 and 7,000,000 FCFA (6,100 to 10,670 EUR), a simple one between 2,500,000 and 4,000,000 FCFA. Miami agency rebuilds of the same scope are commonly quoted at 60,000 to 150,000 USD (market estimate).
Mini case study
Marco, owner of a marine equipment distributor in Miami, paid 45,000 USD to a freelance developer for a stock and sales management app. The developer stopped answering at 60% of the project. Marco recovers the domain and hosting in 10 days using his invoices, then orders a standard audit for 6,000 USD. Verdict: 55% of features are usable, the code runs on a recent framework but has no tests. Takeover with refactoring is estimated at 60% of an 80,000 USD rebuild, so 48,000 USD. Total committed after the incident: 6,000 + 48,000 = 54,000 USD, versus 86,000 USD for an audit followed by a full rebuild. The 32,000 USD saving comes with go-live in 10 weeks instead of 14.
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After the takeover: lock things down so it never happens again
Require in the new contract an assignment of rights on the code, a Git repository owned by your company, admin access in your name and up-to-date documentation. At Kolonell, application maintenance is billed 35,000, 75,000 or 120,000 FCFA per month (50, 110 or 180 EUR) depending on the level (fixes, security updates, backups, small changes).
FAQ
Does code paid to a vanished vendor belong to me?
If the contract includes an assignment of rights or a work-for-hire clause, yes, and invoices serve as proof. Without a written contract it is weaker: a Miami business attorney typically charges 300 to 600 USD per hour to secure the process.
Can an application be taken over without the source code?
Not really. Without a Git repo or source files, only designs, the database and observed behavior can be recovered, and the cost approaches 85 to 100% of a rebuild.
How long does a code audit take?
From 3 days for a quick audit to 15 days for an in-depth one. Budget at least 3,000 USD for a reliable takeover opinion.
Should I always start over to be safe?
No. If over 60% of the project works on an up-to-date framework, a takeover costs 40 to 50% of a rebuild and saves 1 to 2 months.
What monthly budget should I plan after go-live?
Maintenance from 50 to 180 EUR per month at Kolonell depending on criticality, plus hosting. Local Miami retainers commonly start around 1,500 USD per month (market estimate).
Let's scope your project. Send us what you recovered (access, code, specifications): we will propose an audit, a costed takeover or rebuild scenario and a go-live schedule. 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.
