Software Alternatives, Accelerators & Startups

Truecaller VS APIMaster

Compare Truecaller VS APIMaster and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Truecaller logo Truecaller

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

APIMaster logo APIMaster

AI API marketplace: buy OpenAI, Claude & DeepSeek keys at up to 90% off. Fingerprint-verified providers โ€” no fake models.
  • Truecaller Landing page
    Landing page //
    2023-08-01
  • APIMaster API Key market
    API Key market //
    2026-06-15

APIMaster is an AI API marketplace offering OpenAI, Claude, and DeepSeek API keys at up to 90% off official pricing. One API key gives you access to all major models with OpenAI-compatible endpoints โ€” plug directly into Cursor, Claude Code, or any SDK.

Every provider is fingerprint-verified weekly to ensure you're getting the real model. Supports PayPal, USDT, and ePay. No subscription, pay-as-you-go from $1.

Truecaller

Release Date
2009 January
Startup details
Country
Sweden
City
Stockholm
Founder(s)
Alan Mamedi
Employees
50 - 99

APIMaster

Release Date
2026 May
Startup details
Country
Singapore
Employees
1 - 9

Truecaller features and specs

  • Caller Identification
    Truecaller identifies unknown numbers and displays the caller's information based on a large database, helping users avoid spam or unwanted calls.
  • Spam Detection
    The app blocks spam calls and messages, reducing the inconvenience of dealing with telemarketers and scammers.
  • Call and SMS Filtering
    Truecaller offers filtering options for both calls and SMS, allowing users to manage and prioritize their communications effectively.
  • User-Generated Database
    The database is updated by user contributions, which means it continuously improves and includes a wide variety of numbers from around the world.
  • Additional Features
    Truecaller includes additional features such as call recording, flash messaging, and contact backup, adding extra value to the user experience.

Possible disadvantages of Truecaller

  • Privacy Concerns
    The app requires access to the user's contacts, which raises privacy issues as this data is uploaded to Truecaller's database.
  • Data Usage
    Constantly updating the database and identifying calls can consume a significant amount of mobile data.
  • Battery Drain
    Running in the background to monitor and block calls can lead to additional battery consumption.
  • False Positives
    Occasionally, legitimate calls may be mistakenly identified as spam, which can lead to missed important calls.
  • In-App Advertisements
    The free version of the app includes advertisements, which can be intrusive and detract from the user experience.

APIMaster features and specs

  • Fingerprint Verification
    Trained on massive samples to identify the real model behind any API endpoint โ€” not by asking questions the proxy can fake, but by analyzing deep behavioral signals
  • API Key Tester
    Free tool to test OpenAI, Claude, Gemini & DeepSeek API keys โ€” verify connectivity and key validity instantly
  • Provider Leaderboard
    Real-time rankings by model authenticity โ€” see which providers pass or fail fingerprint checks
  • Smart Routing
    Auto-routes every request to the cheapest fingerprint-verified channel, with auto-failover across providers

Analysis of Truecaller

Overall verdict

  • Truecaller is generally considered a good service for users seeking to avoid spam calls and improve their call management. However, some privacy concerns have been raised, as the app requires access to contacts and other personal information to function effectively.

Why this product is good

  • Truecaller is widely regarded as a useful tool for managing incoming calls and identifying unknown numbers. It helps in filtering spam calls and messages, provides information about unknown phone numbers, and offers features such as call recording and contact management. Its large user base contributes to a comprehensive database, enhancing its effectiveness in identifying potential spam and fraudulent calls.

Recommended for

    Truecaller is recommended for individuals who receive a high volume of spam or unknown calls, professionals who need efficient call management, and those who prioritize the identification of incoming call sources. Users who are comfortable sharing their contact information with the app to leverage its full functionality may find it particularly beneficial.

Analysis of APIMaster

Overall verdict

  • APIMaster.ai appears to be a capable API management and development platform, but as with any tool, its suitability depends on your specific needs and workflow. Independent verification of its features and reliability is recommended before committing.

Why this product is good

  • Streamlines API design, testing, and documentation in a unified platform
  • May offer AI-assisted features to accelerate development and reduce manual effort
  • Potential to improve collaboration among development teams working on APIs
  • Could reduce time-to-market by automating repetitive API tasks

Recommended for

  • Developers and teams building or managing multiple APIs
  • Startups looking to speed up API development with AI assistance
  • Organizations needing centralized API documentation and testing
  • Backend engineers seeking to automate API workflows

Truecaller videos

Truecaller | App Review

More videos:

  • Review - Is TrueCaller Worth it? | iOS Android | IRS Spammer | App Review
  • Review - How TrueCaller Works? Crowd Sourcing?

APIMaster videos

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

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Category Popularity

0-100% (relative to Truecaller and APIMaster)
Call Management
100 100%
0% 0
AI
0 0%
100% 100
Caller ID
100 100%
0% 0
Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Truecaller and APIMaster.

Which are the primary technologies used for building your product?

APIMaster's answer:

Next.js, Go, Python (Flask), PostgreSQL

What makes your product unique?

APIMaster's answer:

Fingerprint verification โ€” we test every provider weekly using behavioral fingerprinting to detect model substitution. You can see which providers serve real models vs fake substitutes on our public leaderboard. No other API marketplace does this.

Why should a person choose your product over its competitors?

APIMaster's answer:

APIMaster is the only marketplace that verifies what model you're actually getting. Competitors like OpenRouter route traffic without verification โ€” you might pay for Claude Opus but receive a cheaper model. APIMaster detects this and only recommends verified providers. Plus, prices are up to 90% off official rates โ€” you get both cost savings and model authenticity guaranteed.

How would you describe the primary audience of your product?

APIMaster's answer:

Developers who use OpenAI, Claude, or DeepSeek APIs and want to reduce costs without sacrificing model quality. Especially useful for developers in markets where direct API access is expensive or restricted.

What's the story behind your product?

APIMaster's answer:

Built after discovering that many cheap API resellers secretly substitute expensive models with cheaper ones. We built fingerprint detection first, then a marketplace that only lists providers that pass verification.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Truecaller and APIMaster

Truecaller Reviews

9 Best Truecaller Alternatives โ€“ 2022
Apart from Truecaller collects way too much data about the users and the security they offer isnโ€™t really top notch. Therefore, here are the 9 best TrueCaller alternatives.
Top 10 Truecaller Alternatives You Can Use
When Truecaller launched, it was one of the first apps to bring universal caller ID services to smartphones, and I loved using the service. However, over the years Truecaller has become too bloated. The app is one of the biggest culprits behind background battery drainage in a smartphone. I also donโ€™t like the fact that the service collects too much data about my calls and...
Source: beebom.com
10 Best Truecaller Alternatives For Android in 2022
There are plenty of caller ID and call blocker apps available for Android smartphones. However, if I had to pick anyone, I would choose the TrueCaller app. TrueCaller is one of the best caller ID and call blocker apps available for Android smartphones on the Play Store.
Source: techviral.net

APIMaster Reviews

We have no reviews of APIMaster yet.
Be the first one to post

Social recommendations and mentions

Based on our record, Truecaller seems to be more popular. It has been mentiond 2 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.

Truecaller mentions (2)

  • Is there a service I can buy or something to do about solicitor calls
    Unfortunately, looks like every truecaller bot's been suspended. But you can always just use truecaller.com, their actual site. it's a bit tedious, but works just fine and a loot less annoying than spam calls. Source: about 3 years ago
  • This is a new one for me. I just received 3 spam calls one after the other.
    It would be awesome if you guys could install and the report these numbers on ScamShield [https://scamshield.org.sg]. Sadly iOS only for now. Alternatively I also use TrueCaller on Android [https://truecaller.com]. Normally I pick up the calls and let the recordings play until they auto hang up around 58-59s (probably get billed after that or something). Now the calls I get are all under 30s and yes I also saw a... Source: about 4 years ago

APIMaster mentions (0)

We have not tracked any mentions of APIMaster yet. Tracking of APIMaster recommendations started around Jun 2026.

What are some alternatives?

When comparing Truecaller and APIMaster, you can also consider the following products

CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.

OpenRouter - A router for LLMs and other AI models

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

BazaarLink - BazaarLink ๆ˜ฏๅฐ็ฃ AI API ่šๅˆๅนณๅฐ๏ผŒๆ•ดๅˆ GPT-4oใ€Claudeใ€Geminiใ€DeepSeek ็ญ‰ไธปๆตๆจกๅž‹๏ผŒๆไพ› OpenAI ็›ธๅฎน APIใ€ๅฐๅนฃ่จˆ่ฒปใ€ไธ‰่ฏๅผ็ตฑไธ€็™ผ็ฅจ๏ผŒๅ”ๅŠฉๅฐ็ฃ้–‹็™ผ่€…่ˆ‡ไผๆฅญไธฒๆŽฅๆœ€ๆ–ฐ AI ๆœๅ‹™ใ€‚

WhosCall - WhosCall is a reliable caller ID app whose popularity has led to its adoption by many users including international media. You can now manage the numbers calling you regardless of whether they are part of your contact list or not... read more.

VoidLLM - Self-hosted LLM proxy with load balancing, multi-provider routing, API key management, and usage tracking. Privacy-first โ€” zero knowledge of your prompts.