
SquadPrime
App Cost Calculator
MVP-Challenge
WIP.co
Estimapp
Offshore Development Cost Calculator
Makerlog
A structured 13, 21 or 30-day sprint for developers with a full-time job whose side project is stuck. Daily prompts calibrated to your project, and at each milestone a human reads what you delivered before the sprint continues.

ipinfo.io
ipstack
ipgeolocation.io
IP-API.com
ipdata.co
IP2Location
ipwhois.io
Web analytics with IP address lookup and location API

Which is more popular?
Based on our record, ipapi seems to be more popular. It has been mentioned 21 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | mvpbuilder.io | ipapi.co |
| Pricing | ||
| Company | Startup from Switzerland · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Most side projects don't fail because the developer isn't good enough. They fail because there's no structure, no real deadline, and nobody watching when you skip Day 4. MVP Builder is a structured 13, 21 or 30-day sprint for developers with a full-time job whose side project is stuck. Not a...
No description of ipapi yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Developers, businesses, and organizations seeking to enhance their applications with IP geolocation services. It's especially beneficial for projects involving fraud prevention, targeted content delivery, marketing analysis, and user experience customization.
Walkthroughs and reviews on video.
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How to use the Ipapi API to find information about IP addresses
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing MVPBuilder.io and ipapi.
MVPBuilder.io's answer
Next.js, Supabase, Vercel
MVPBuilder.io's answer
AI will give you a plan in ten minutes and will not notice when you skip Day 4. What is missing is not another plan, it is a checkpoint someone else reads. The daily prompt is calibrated to your own project context rather than generic advice, and the decision to take you on is made in a call, not by a form — vague scope gets turned down there, because a sprint that starts wrong produces nothing worth showing.
MVPBuilder.io's answer
Developers with a full-time job and a side project that has been almost done for months. Not beginners, not people looking for someone to build it for them. The requirement is that you own the implementation and can put three to five hours a week into it, spread across several days rather than in one block.
MVPBuilder.io's answer
The milestone is enforced, not tracked. On day 13, 21 or 30 you attach a URL or a file, and a person reads it against a goal that was written down before day one and frozen. No proof, no continuation: the sprint pauses. Everyday check-ins stay voluntary on purpose — the point is not attendance, it is that something exists at the checkpoint.
MVPBuilder.io's answer
MVPBuilder.io's answer
I built the enforcement first and then ran it on myself: a 21-day sprint as a participant, with the goal written down and frozen before day one. I missed one of my four criteria and published that alongside the three I met. The product exists so that every participant gets the same setup: a goal frozen before day one, and proof at each milestone that a human reads.
Share your experience with using MVPBuilder.io and ipapi. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking MVPBuilder.io since Apr 2026.
// API 1: ip-api.com (free, no key needed, 45 req/min) $response = $http->get("http://ip-api.com/json/{$ip}?fields=proxy,hosting"); If (!empty($data['proxy']) || !empty($data['hosting'])) { return true; // VPN/Proxy detected } //... - Source: dev.to / 10 months ago
IPapi - Service that provides you an info about an IP address. - Source: dev.to / over 2 years ago
Ipapi - IP Address Location API by Kloudend, Inc - A reliable geolocation API built on AWS, trusted by Fortune 500. The free tier offers 30k lookups/month (1k/day) without signup. - Source: dev.to / over 2 years ago
When comparing MVPBuilder.io and ipapi, you can also consider the following products.

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ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
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Free IP Geolocation API and Accurate GeoIP Lookup Location Database
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