Software Alternatives, Accelerators & Startups

Hiya VS IsValid.dev

Compare Hiya VS IsValid.dev and see what are their differences

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Hiya logo Hiya

Know who's calling or texting and block spammers on Android

IsValid.dev logo IsValid.dev

A powerful REST API for validating emails, IBANs, BIC/SWIFT codes, LEI, ISIN, credit cards, VAT numbers, phone numbers, and 70+ more validators. Free tier available.
  • Hiya Landing page
    Landing page //
    2022-12-26
  • IsValid.dev Main Page
    Main Page //
    2026-04-09

IsValid is a validation API service for developers who need to quickly verify data formats without building their own validators. It offers 40+ endpoints covering financial identifiers (IBAN, BIC, ISIN, CUSIP), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), regional codes (PESEL, REGON, VAT), and more.

The service works on a freemium model โ€” 100 free API calls per day, no credit card required. Users manage API keys through a dashboard with usage analytics showing daily call volume and per-endpoint breakdowns.

Hiya

Website
hiya.com
Pricing URL
-
$ Details
-
Platforms
-

Hiya features and specs

  • Caller Identification
    Hiya provides real-time identification of incoming calls, helping users to recognize callers even if they aren't in their contact list.
  • Spam Detection
    The app has robust spam detection algorithms that help identify and block unwanted or scam calls.
  • User-Friendly Interface
    Hiya features an intuitive and easy-to-navigate interface, making it accessible for users of all tech levels.
  • Privacy Protection
    Hiya does not upload your contacts information to their servers, ensuring a layer of privacy protection for your personal data.
  • Frequent Updates
    Hiya receives regular updates to improve its features and adapt to new spam techniques.

Possible disadvantages of Hiya

  • Limited Free Features
    While Hiya offers free basic features, some advanced options, like detailed information about calls, require a paid subscription.
  • Variable Performance
    The effectiveness of spam detection may vary based on the region and local telecommunication practices.
  • Potential Battery Drain
    Running continuously in the background, Hiya may consume more battery than expected on some devices.
  • Conflicting Reports
    Some users report that legitimate calls are occasionally marked as spam, leading to possible missed communications.

IsValid.dev features and specs

  • Lightweight schema validation
    IsValid.dev offers a minimal, lightweight approach to schema validation for TypeScript, avoiding the bloat that can come with larger validation libraries.
  • TypeScript-first design
    Built with TypeScript in mind, providing strong type inference so validated data automatically gets proper TypeScript types without extra manual typing.
  • Simple API
    The library offers an intuitive and easy-to-learn API for defining and running validations, making it accessible for developers to quickly get started.
  • Zero or minimal dependencies
    Being a lightweight tool, it typically has little to no external dependencies, reducing bundle size and potential security/maintenance issues from third-party packages.
  • Good for small to medium projects
    Its simplicity makes it well suited for smaller projects or use cases where heavier libraries like Zod or Yup might be overkill.

Possible disadvantages of IsValid.dev

  • Smaller community and ecosystem
    Compared to established validation libraries like Zod, Joi, or Yup, IsValid.dev has a much smaller user base, meaning fewer community resources, tutorials, and third-party integrations.
  • Limited documentation
    As a newer or less mainstream tool, its documentation may be less comprehensive than more established alternatives, making it harder to find answers to edge-case questions.
  • Fewer advanced features
    It may lack some of the advanced features found in more mature libraries, such as extensive built-in validators, custom error message localization, or complex schema composition tools.
  • Less battle-tested
    Being less widely adopted, it may not have been tested against as many real-world edge cases as more popular libraries, potentially leading to undiscovered bugs.
  • Uncertain long-term support
    Newer or niche libraries carry a higher risk of reduced maintenance or discontinuation over time compared to well-funded or widely-adopted projects.

Analysis of Hiya

Overall verdict

  • Hiya is generally considered a good option for those looking to reduce spam calls and enhance call security. It is especially praised for its simplicity and effectiveness in identifying and blocking unwanted calls.

Why this product is good

  • Hiya is a well-regarded spam blocking and caller identification app that helps users identify unknown callers, block spam calls, and enhance their security while using their phones. It provides a robust database of spam numbers and uses advanced algorithms to ensure effective call screening. The app has received positive reviews for its user-friendly interface and effective spam detection.

Recommended for

    Hiya is recommended for individuals who frequently receive spam or unknown calls and want an effective tool to identify and block these calls. It is also beneficial for those who prioritize ease of use and want a straightforward app to enhance their mobile security.

Analysis of IsValid.dev

Overall verdict

  • IsValid.dev appears to be a developer-focused validation/utility tool that can be useful for quick, lightweight validation tasks, though I don't have verified, up-to-date details on its full feature set or reliability track record.

Why this product is good

  • Likely offers a simple, developer-friendly interface for validation tasks
  • Probably free or low-cost, making it accessible for quick checks
  • May support common validation formats (e.g., JSON, schemas, or data formats) useful in development workflows
  • Could save time compared to writing custom validation scripts for simple use cases

Recommended for

  • Developers needing quick, ad-hoc validation checks
  • Small projects or prototypes where a lightweight tool suffices
  • Users looking for a free or low-cost alternative to more complex validation suites
  • Learning or testing purposes rather than mission-critical production validation

Hiya videos

Hiya - FREE Caller ID App... It's Awesome!

More videos:

  • Review - Hiya Caller ID and Blocker keeps robocallers at bay | 50 Essential iOS Apps #3
  • Tutorial - How To Use Hiya App | Stop Unwanted Calls FREE! - App of the Week

IsValid.dev videos

No IsValid.dev videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Hiya and IsValid.dev)
Call Management
100 100%
0% 0
Developer Tools
0 0%
100% 100
Caller ID
100 100%
0% 0
API
0 0%
100% 100

Questions & Answers

As answered by people managing Hiya and IsValid.dev.

What makes your product unique?

IsValid.dev's answer:

IsValid offers 70+ validators in a single API โ€” covering financial identifiers (IBAN, BIC, ISIN, LEI), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), tax numbers (VAT, REGON, PESEL), credit cards, phone numbers, and more. No need to integrate multiple services for different data types.

Why should a person choose your product over its competitors?

IsValid.dev's answer:

Most validation APIs focus on one category (email or phone). IsValid covers financial, regional, and technical formats all in one place with a consistent REST API. The free tier with 100 calls/day requires no credit card, and integration takes minutes.

How would you describe the primary audience of your product?

IsValid.dev's answer:

Developers and software teams building applications that handle user input, financial data, or international identifiers โ€” particularly in fintech, e-commerce, and SaaS products.

What's the story behind your product?

IsValid.dev's answer:

IsValid was built out of frustration with piecing together multiple validation libraries and services. The goal was a single, reliable API that handles the full range of data validation needs developers encounter in real-world applications.

Which are the primary technologies used for building your product?

IsValid.dev's answer:

Next.js, Fastify, PostgreSQL, Docker

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Hiya and IsValid.dev

Hiya Reviews

9 Best Truecaller Alternatives โ€“ 2022
Hiya can search up and identify random phone numbers and block them if you want to. It can also block spam calls and can also block spam SMS.
Top 10 Truecaller Alternatives You Can Use
Hiya which was formerly known as Whitepages Caller ID is a very capable caller ID app which identifies the calls you want to take and blocks the numbers and texts you want to avoid. Just like Truecaller, the app identifies unknown numbers, allows you to search for unknown numbers, and automatically blocks spam calls. My favorite feature of Hiya apart from its intended...
Source: beebom.com
10 Best Truecaller Alternatives For Android in 2022
You can set the app to automatically block specified numbers, spam numbers, or telemarketing calls. Hiya โ€“ Caller ID & Block is entirely free, and it doesnโ€™t even show any ads.
Source: techviral.net

IsValid.dev Reviews

We have no reviews of IsValid.dev yet.
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Social recommendations and mentions

Based on our record, Hiya seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Hiya mentions (3)

  • ๐Ÿ˜‚ scams in Ottawa market place FB, pay attention to the email that I provided
    Hiya.com - it comes default with most Samsung phones. Otherwise, you have to download it. It compares the incoming call and SMS telephone numbers against a database of known scammers, spammers and fraudsters. You can set it to auto block or let the call go through but with a caller ID warning that it's a suspected bad call. Source: about 4 years ago
  • How to have my name show on all other phones I call?
    It turns out it's via a service called Hiya. Haven't looked fully into how you go about adding your name and phone number to that, but obviously it would only work on compatible phones. Source: almost 5 years ago
  • Already got three calls today.... all local numbers
    But you're right - most of the time it's a local number (even though it really isn't)! You can get the hiya.com app, which is really helpful. Source: about 5 years ago

IsValid.dev mentions (0)

We have not tracked any mentions of IsValid.dev yet. Tracking of IsValid.dev recommendations started around Apr 2026.

What are some alternatives?

When comparing Hiya and IsValid.dev, you can also consider the following products

Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.

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Spark Hire - SEEK Video Screen provides you with a quick and easy way to review a candidateโ€™s presentation, motivation & cultural fit in order to simplify the early stages of your recruitment process.

Numverify - Global phone number validation and lookup API

EasyHire.me - EasyHire.me is a cloud-based video interview platform that enables the talent management team to conduct consistent, efficient and professional job interviews.

mailboxlayer API - Mailboxlayer is a free, simple and powerful JSON API offering instant email address validation & verification via syntax checks, typo and spelling checks, SMTP checks, free and disposable provider filtering, and much more.