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Reno Toonen

Reno Toonen

Co-founder TopDevs · Engineering & security

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Reno co-founded TopDevs and leads engineering and security. He makes sure every build is fast, secure and rock-solid, from database and authentication design to deployment and monitoring.

Expertise

Software engineeringApplication securityDevOpsDatabases

Articles by Reno

Custom business software, a cyan terraced hillside of modular blocks rising from a mountain meadow, as an image of software assembled around a company's own processes
Custom Software·9 min read

Custom Business Software: When to Choose Custom Over Off-the-Shelf

Custom business software or an off-the-shelf package? An honest decision guide for SMEs: what custom means, when it pays off, which systems you build custom, what it costs and how to start. No sales pitch.

Building a quotation app, a terraced structure of modular cyan blocks rising from a mountain meadow, as an image for a custom quote app built block by block
Custom Software·11 min read

Building a quotation app: off-the-shelf software or custom? (2026)

Everything about building a quotation app: the difference between off-the-shelf quoting software and a custom quote app, when custom pays off, what it costs, which features matter and what to watch for. A practical decision guide for SMEs, without the sales pitch.

Construction software, modular cyan blocks built like terraces into a mountainside
Custom Software·9 min read

Construction software: types, packages and when custom pays off (2026)

An honest overview of construction software: ERP, planning, estimating and field reporting, which packages exist in the Netherlands, and when an integration or custom build beats an off-the-shelf package.

Having a dashboard built, layered cyan data strata glowing as they rise from a mountain meadow, as an image of separate data sources coming together in one overview
Custom Software·10 min read

Having a Dashboard Built: Costs, Types and the Right Choice (2026)

Everything about having a dashboard built: the difference between a reporting dashboard (Power BI) and a custom application dashboard, what it costs, build it yourself or outsource, and what to watch out for. A practical choice guide for SMEs, without the sales pitch.

Having a portal built, a cyan gateway of light rising from a green mountain meadow, as an image of a secured online environment people log into
Custom Software·10 min read

Having a Portal Built: Types, Costs and Approach (2026)

What a portal is, which types exist (customer, employee, supplier and member portals), when it pays off, what it costs and how the build process works. A practical decision guide for SMEs, without the sales pitch.

Having a web application built, a cyan terraced hillside of modular blocks rising from a mountain meadow, as an image of custom software assembled step by step
Custom Software·11 min read

How to Have a Web Application Built: The Complete Guide (2026)

Everything about having a web application built: what it is, when you actually need one, how the build process works and how to choose the right partner. A practical guide for SME owners, without the sales pitch.

Web app development cost, a cyan terraced mountain slope rising toward a peak, symbolising cost rising with scope
Custom Software·9 min read

Web app development cost: price guide 2026

Web app development cost in 2026, broken down by type, by component and by year. Plus how a web application differs from a website and an app, and how to keep the bill down.

SaaS development cost, a cyan terraced mountain slope with rising tiers climbing toward a peak under a soft cyan sunrise
Custom Software·9 min read

SaaS development cost: price guide 2026

SaaS development cost in 2026, broken down by phase, by building block and by month of running costs. Plus how to start smart. Book a free intake call.

App development cost, a cyan terraced mountain slope rising toward a peak with a soft cyan sunrise behind it
Custom Software·9 min read

App development cost: price guide 2026

App development cost in 2026, broken down by app type, by feature and by year of upkeep. Plus how to keep the bill down. Book a free intake call.

Having an app built, a cyan terraced mountain structure of modular blocks rising toward the peak
Custom Software·8 min read

App development: cost, types and process

Having an app built? What a custom app really costs in 2026, which type you need, how long it takes and how to pick a studio. Book a free intake call.

Off-the-shelf versus custom software, two equal cyan mountain hills joined by a glowing cyan bridge
Custom Software·9 min read

Off-the-shelf vs custom software: how to choose

Off-the-shelf vs custom software: when is a standard package enough and when does custom win? Honest comparison with cost, TCO and a decision checklist.

Two TopDevs colleagues reviewing a design together
Custom Software·17 min read

Having custom software built for SMBs: the complete guide (2026)

What custom software really costs, how long it takes and when it pays off. A practical guide for SMB owners covering costs, phases, tech stack and pitfalls. No marketing pitch, just concrete answers.

MVP development approach and phases for SMBs
Custom Software·9 min read

Having an MVP built for SMBs: approach, phases and costs (2026)

Practical guide for SMB founders. What is an MVP, when do you pick this route, what does it cost, which phases do you go through and which features belong in a first version.

Custom software costs in 2026 for SMBs, honest price guide
Custom Software·9 min read

What does custom software cost in 2026? An honest price guide for SMBs

Honest price guide for custom software in 2026. What drives the price, which ranges are realistic per project type, which costs sit next to the build, and how to avoid hidden extras.

Headless CMS comparison Strapi Payload Sanity for SMBs
Custom Software·10 min read

Strapi vs Payload vs Sanity: which headless CMS fits your SMB? (2026)

An honest comparison of the four serious headless CMS options for SMBs: Strapi, Payload, Sanity and Storyblok. Which one to pick when, and when not.

Web app, SaaS or custom platform choice for SMBs
Custom Software·12 min read

Web app, SaaS or custom platform: what do you actually need? (2026)

The difference between a web app, SaaS and a custom platform, explained for SMB owners. When do you pick what, what does it cost and how long does it take? Concrete tables, pitfalls and a decision tree in five minutes.

Airtable Notion versus custom platform comparison for SMBs
Custom Software·9 min read

Airtable vs Notion vs custom platform: what fits your SMB? (2026)

When are Airtable, Notion or Coda enough for your SMB, and when do you hit limits only a custom platform can solve? An even-handed comparison with prices, a feature matrix and a decision checklist.

Software agency versus freelance developer choice for SMBs
Custom Software·11 min read

Software agency vs freelance developer: what fits your SMB project? (2026)

When do you pick a freelance developer and when a software agency for your SMB project? Honest comparison on cost, risk, capacity and ownership.

Code ownership and vendor lock-in explained for SMBs
Custom Software·12 min read

Code ownership and vendor lock-in: what every SMB owner needs to know (2026)

What does code ownership actually mean, how does vendor lock-in arise, and which subtle variants do people miss in a quote? Full explainer with red flags, the legal side and questions for potential partners.

Client portal examples for SMBs
Custom Software·12 min read

Building a client portal: guide with examples, costs and approach (2026)

What a client portal is, when it pays off for SMBs, five concrete examples from accounting, real estate and law firms, plus costs, phases and pitfalls.

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